AMENDMENT #1
January 13, 2022
Invitation for Bids (IFB) Number
PCCD-22-PCW21Rehab-01, 12/9/2021
Issued byPlum Creek Conservation District
Lockhart, Texas

The above numbered IFB hereby is amended as set forth
below. The hour and date specified for receipt of offers ischanged to 10:00 a.m., Wednesday, January 26, 2022
PURPOSE OF AMENDMENT
1. To transmit pen-and-ink changes to the IFB drawings and specifications and revised
drawing sheets, and to provide meeting minutes (including Questions and Answers) and an
attendance list for the 1/6/22 Pre-bid Conference/Site Showing.
2. To remind bidders that oral explanations or instructions given before the award of thecontract will not be binding. See PART I, Subpart B, Instructions to Bidders, Section 6.
Offerors must acknowledge receipt of this Amendment no later than the hour and datespecified in the IFB (see IFB Amendment #1 for change in this date/time) for receipt of sealed
bids by one of the following methods:(1) Make appropriate notations on Exhibit A, Offer form (PART I, Subpart C, page GP-8).
(2) Complete and return form below. Form must be mailed or hand-carried to the address
designated for receipt of bids, and be made to the attention of Daniel Meyer, Contracting
Officer, clearly noting “Acknowledgment of Receipt of Amendment No. 1, IFB No. PCCD22-PCW21Rehab-01” on the envelope. Fax, electronic, or telegraphic acknowledgmentsof receipt are not allowed.

---------------------------------------------------------------ACKNOWLEDGMENT OF RECEIPT
Amendment No. 1 (1-13-2022)
IFB PCCD-22-PCW21Rehab-01 (Site 21 Rehabilitation)
Bidder’s Signature: ________________________________________
Bidder’s Name: ________________________________________
Bidder’s Title:________________________________________

Date Signed:________________________________________

Company Name:________________________________________IFB No. PCCD-22-PCW21Rehab-01
Amendment #1 (1-13-2022)

Page 1 of 21

PEN-AND-INK CHANGESPART I – SUBPART A (Notice to Bidders_
The Bid Opening DATE stated in this notice hereby is changed to be held: Wednesday, January 26,
2022, at 10:00 a.m (location is unchanged).

PART I – SUBPART B (Instructions to Bidders)
Instruction #6, Explanation to Bidders / Inquiries
The date to submit written inquiries on the bid documents to the Contracting Officer is changed from noon
on January 12, 2022 to noon on Tuesday, January 18, 2022.

PART III – SUPPLEMENTAL CONDITIONSArticle 1 – Types and Limits of Insurance
ADD the following to Article 1(f):“The property landowner, 130 Environmental Park LLC, shall be listed as an additional
named insured on the prime Contractor’s Certificate(s) of Liability Insurance.”
PART IV – CONSTRUCTION & MATERIAL SPECIFICATIONS
CSpec-5, Pollution Control
ADD the following to Section 8.b. Bid Item 5, Silt Fence:(4) In Section 3, sediment filters, silt fence material shall meet the requirements of ASTM
D6461 and Material Specification 592.
CSpec-7, Construction Survey
ADD the following to Section 9.a., Bid Item 9, Construction Surveys:(5) In Section 3, Quality of Work, electronic models created for the purpose of aiding theContractor in stakeout and/or quantity computations, as well as field layout and staking,shall be prepared and/or performed by a Professional Engineer (P.E.) or Registered
Public Land Surveyor (RPLS) licensed in the State of Texas.
CSpec-8, Mobilization and Demobilization
DELETE current Section 4.a.(2)(a), and REPLACE it with the following:(a) Primary access to the work area shall be from the two existing ranch road entrances off
of FM 1185 as shown on the drawings. Road base or rock meeting the material
requirements shown on the drawings and approved by the Contracting Officer shall beplaced on access roads (one is currently unpaved and one is partially paved). The
access roads to the campsites and work areas shall be a minimum of 14 feet wide, andshall be constructed and maintained in a smooth, rut-free condition throughout thecontract period. The Contractor shall be required to install any improvements (including
temporary gates) required for site access. Culverts shall be installed at crossings of low
areas where significant concentrations of runoff water accumulate and causes pondingof water, except within jurisdictional Waters of the United States (WOTUS) andwetlands. The Contractor is responsible for any traffic control, permits, and/or entrance
requirements specified by TxDOT necessary for construction and operation of theaccess road improvements. Any fencing removed to allow construction access shall be
restored to equal or better than pre-construction conditions during demobilization.

IFB No. PCCD-22-PCW21Rehab-01
Amendment #1 (1-13-2022)

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CSpec-27, Diversions and Waterways
ADD the following to Section 7.a.(4), Bid Item 17, Diversions:“The measurement for payment shall take place at the centerline of the effective
height of the diversion.”
CSpec-28, Lime Treated Earthfill
ADD the following to Section 12.b. Bid Item 21, Furnishing and Handling Lime (Material Types F & G):(8) The depth of topsoil to remove and replace for the lime mixing area
shall be a minimum of 12 inches.
Section 12.b.(6), 1st line. DELETE “soil stockpile areas” and INSERT “designated lime mixing areas

shown on the drawings.”
CSpec-45, Plastic Pipe
Section 14, 1st paragraph, 1st line. Change “pressure class 150” TO READ “pressure class 165”.
CSpec-61, Rock Riprap
Section 8.a. Change Bid Item 30 TO READ Bid Item 29.
CSpec-71, Water Control Gates
Section 8.a.(2), line 2. Change “MHS-2” TO READ “MHS-1”.
CSpec-92, Field Fence
ADD the following to Section 11.a., Bid Item 34, Fence, Barbed Wire:(4) No additional compensation will be made for additional bracing or
special anchorage required as a result of the final layout staked by
the Engineer.
CSpec-94, Contractor Quality Control
Section 10.a.(8)(n) Metal Fabrication, line 1. Change “periodic inspection” TO READ “full timeinspection”.
CSpec-95, Geotextile
Section 7.a.(4), line 1. Change “Table 592-1” TO READ “Table 592-2”.
CSpec-446, Grouted Anchor Bars
Section 8.1.b., line 2. Change “Reinforced Concrete” TO READ “Concrete”.

PART V – DRAWING NO. TX-EN-0754
Replacement Sheets:
DISCARD these sheets (sealed 8/4/21) and INSERT the attached nine revised sheets:
Sheets 2, 4, 5, 7, 9, 11, 37, 73, 83
Balloons/clouds have been utilized to show changes made on each of these drawing sheets.

Drawing TX-EN-0754 Pen-and-Ink Changes
Sheet 28.
Note 3. DELETE “CLASS 30-20, TYPE MLS-2” and INSERT “CLASS 55-20, TYPE MHS-1”
Note 4. CHANGE “NON-RISING STEM” TO READ “RISING STEM”.

IFB No. PCCD-22-PCW21Rehab-01
Amendment #1 (1-13-2022)

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DESIGNATIONS / ITEMS STAKEDITEMS DESIGNATED VERBALLY/MARKED AT SITE SHOWINGNOTE attached revised Drawing Sheet 5 (sealed 1/13/22) which has moved locations of some items thatwere on the original drawing. Items that were designated at the time of the site showing:•

Two Access Roads as shown on revised Drawing Sheet 5. Note changes on rev. Sheet 5.

•

Two Stabilized Construction Entrances (SCE); one proposed and one alternate.

•

Construction Campsite. As shown on revised Drawing Sheet 5 (now designates campsite andalternate campsite locations).

•

Stockpile Area and Alternates. Note Alternate Stockpile Area on east end of structure was
relocated to the west side of the partially-paved access road.

•

Borrow Area 1 and Borrow Area 2 as shown on Drawing Sheet 5.

•

Waste Area location as shown on Drawing Sheet 5.

•

Buried material locations (will be designated by Engineer during construction)•

Existing brush pile within the limits of Borrow Area #2 (may not have to be removed).

•

Barbed wire fence near sheds downstream of the embankment to be removed (fence was notshown on the drawings).

•

Actual Limits of Clearing and Grubbing are designated as:•oUpstream and downstream along toe of embankment (approx.. Sta. 27+00 to Sta. 39+00)oBrush and any debris on upstream and downstream slope of embankment.

oAlternate Stockpile Area west of embankment (if needed).

oExisting outlet channel.

o

RCC spillway outlet channel.

oBorrow Area #1 and #2 and their access routes (as needed)

Actual limits of fences required to be removed as shown on the drawings are approximate. The
Engineer and/or Inspector shall designate during construction.

Items that were marked at the time of the site showing:•

New Principal spillway pipe location (pink flagging)•

New RCC Spillway location (pink flagging)•

Barbed Wire fence to remain on site (pink flagging)

QUESTIONS AND ANSWERS 1/6/22
Q: Is it possible to work longer hours when working on the RCC?
A: The Contracting Officer may consider it depending on circumstances at the time this work is
performed. Please still bid the work for up to 11-hour workdays 6 days per week, not to exceed 60
hours per week.
Q: Do we still have to bluetop everything if we are using heavy equipment with GPS?
A: YesIFB No. PCCD-22-PCW21Rehab-01
Amendment #1 (1-13-2022)

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Q: The existing paved road is approximately 10-12 feet wide. Will we still have to make it 14 feet wide?
A: Yes.
Q: Can we build an alternate access road alongside the existing paved road?
A: Yes and it shall meet the requirements of the construction specifications and drawings.
Q: Our firm calculated that we would need approximately 41,000 CY for our cofferdam. Is there enoughborrow material on site for that quantity?
A: We anticipate that there will be a surplus volume of available on-site borrow as compared to required
fill volume shown on the contract documents (potentially on order of 20,000 to 40,000 CY). However,
the Contractor should be prepared to locate additional off-site borrow sources as needed to complete
construction of the cofferdam. The surplus borrow material is anticipated to come primarily from thelower zone of Borrow Area 2 and deeper zones of required excavation at the downstream toe for the
RCC stilling basin, and classifies predominantly as fat clay (CH). The Contractor’s Engineer is
responsible for specifying the required soil properties for the cofferdam fill. The Contractor is
responsible for verifying that the available material in each borrow source meets the material
specifications for the cofferdam fill and each fill type specified in the contract documents. Contractorproposed alternative borrow sources for each material type are subject to review and approval by theEngineer (CS 23, Section 10, paragraph 1).
Q: Are we allowed to batch RCC on-site?
A: Yes, see IFB Amendment #1 revised Drawing Sheet 2.
Q: Where is the designated area for the batch plant?
A: See Sheet 5 (IFB Amendment #1 revision) of the plan drawings.
Q: Are we going to have two areas for lime-mixing, or just one?
A: See Sheet 5 (IFB Amendment #1 revision) which shows two optional areas.
Q: Q. Are there any power providers nearby?
A: The landowner stated the electricity provider nearby is Bluebonnet Electric.
Q: How deep is the reservoir water currently?
A: Approximately 5 feet below the principal spillway crest.
Q: Will the sheds south of the embankment be removed?
A: Yes, the landowner sent written email confirmation to PCCD that they will remove the two metal sheds
prior to commencement of rehab work.
Q: Are there any trees within the work limits that we will need to protect?
A: Yes, the landowner will mark them prior to work commencement.
Q: The landowner stated that they will have their own construction project happening concurrently with
our project (construction of pavilion near east end of structure). Will they also utilize the existing paved
road for site access?
A: Yes.
Q: It appears there is an error in the estimated quantity of Bid Item 23 (Concrete, Pipe Cradle) in the Bid
Schedule.
A: Yes, there is an error. A corrected Bid Schedule Sheet 2 of 3 (page GP-11 of 21 in IFB) will be
published/available via IFB Amendment #2 shortly after Amendment #1 is published.

IFB No. PCCD-22-PCW21Rehab-01
Amendment #1 (1-13-2022)

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Q: Can the Hydraulic Models generated in SITES be provided to the bidders?
A: Yes, these will be posted online at the PCCD website when IFB Amd. #1 is published under theheading ENGINEERING DOCUMENTS (for informational purposes) Website: https://pccd.org (Job
Bids tab) You will need SITES program to open the files – information can be found at SITES(usda.gov)
Q: Do you have a TxDOT contact person for approving the Traffic Control Plan required in CSpec-9?
A: Yes. Ryan Grantham, Lockhart, 512-398-2412
Q: Fence Removal/Disposal, CSpec-3, Structure Removal.
A: It appears that Environmental Park 130 LLC, landfill owner, might have off-site disposal area available
for fencing that requires removal and off-site disposal.
Q: Is it possible to move the bid opening date forward?
A: Yes, as shown on this Amendment #1, the Bid Opening has been changed to 10:00 AM on
Wednesday, January 26, 2022.
Q: What are the available water resources?
A: PCCD indicated that it is the responsibility of the Contractor to acquire water sources and obtain any
required permits (see Part II, Article 19). Landowner representative, Environmental Park 130 LLC,
mentioned several nearby water sources that they have used in the past: 1) Polonia Water Supply
Corporation – there is a ½ inch line running from FM 1185 to an area just east of the outer auxiliary
spillway dike, 2) TCEQ water withdrawal permit for reservoir water, 3) City of Lockhart Utilities, and 4)
Creedmoor-Maha Water Supply Corporation.
Additional Questions/Answers Received After 1/6/22
Q: Per the plans (Sheet 18 and 38), riprap bedding is required at the downstream sections of both theimpact basin and the RCC spillway. These locations combine to approximately 266 CY of material. Is
the bid item supposed to be priced by the CY and not the TN? Please confirm your quantity andadjust the bid schedule accordingly?
A: The Bid Schedule estimated quantity of 270 is correct. The Unit should say Cu. Yd. and this will becorrected in IFB Amendment #2 (a new Bid Schedule Sheet 2 of 3 will be attached to theamendment).
Q: Per the plans (Sheet 29), an unreinforced concrete cradle is required under the 42” Principal Spillway.
The bid item quantity is 8.04 CY, however my calculations give approximately 80 CY of material
required. Please confirm your quantity and adjust the bid schedule accordingly?
A: A revised Bid Schedule Sheet 2 of 3 will be distributed in IFB Amendment #2 to correct thistypographic error. The correct estimated quantity is 84.0 Cu. Yd.
Q: Bid Item 11, Removal of Water requires a coffer dam engineered to a minimum level of the 100-year
storm event. Can you please provide the hydraulic information for such event?
A: See Answer in first section of Q&As above.
Q: Where can the batch plant for the RCC set on site?
A: See revised Sheet 5 of the drawings sealed 1/13/22 being distributed via IFB Amendment #1.
Q: Are the Under Drain details correct as to how the materials should be? (Typically, you have Coarse
Filter on the outside and Fine Filter on the inside) Detail 1/38 on Sheet 53 shows the layout with finefilter on the outside and Course filter on the inside and no geotextile to help keep the fines out.
A: Detail 1/38 on Sheet 53 is correct as shown. The fine filter gradation has been designed to be filtercompatible with the clayey subgrade and earthfill materials. The gradations of the fine and coarse
filters have been designed to be filter-compatible as well. Lastly, the coarse filter gradation isdesigned to be filter-compatible with the selected pipe slot size.

IFB No. PCCD-22-PCW21Rehab-01
Amendment #1 (1-13-2022)

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Q: How do you pay for embankment borrow materials if there is not enough in the specified borrow
areas?
A: If another borrow area can be found onsite within approved limits of disturbance and has suitablematerials, we would add that borrow area to the contract. If onsite material can't be found, Contractor
would need to import off-site material. Either way, the contract would be modified if this were to occur
during construction.
Q: Per the spec in the borrow areas it states that we need to maintain a 5:1 safety slope in our cuts. Will
a 3:1 be allowed as that is a lot of additional set back that you can’t go outside of borrow limits?
A: This requirement will not be changed and remains as specified.
Q: How will you handle over run and under runs on any bid items? Spec States that the Contractor is on
the Hook for 25% over and under if there is a delta over that then there will be a change order Pleaseconfirm this Page 37 of Spec?
A: Part II, General Conditions, Article 28, Quantity Variations, specifies Contractor will be paid the unit
bid price for quantities 25% over and 25% under the estimated quantity listed in the Bid Schedule andthere will be no adjustment to performance time. If the quantity is more than 25% UNDER theestimated quantity, the entire actual quantity performed would need to be repriced and performancetime change considered. That would be done via a contract modification to make an equitableadjustment to unit price and performance time. For quantities OVER 25% of the estimated quantity,
the quantity exceeding 125% would be subject to an equitable unit price amount and performancetime change. Also, a total re-estimated quantity would be calculated for purpose of any future quantity
variations for that work item.
Q: Water Connections for the temp irrigation system, where can these connections be made?
A: See IFB Amendment #1 (Questions/Answers) for possible sources mentioned by landfill owner at thesite showing.
Q: The SW3P plan has more silt fence than what is in the bid item, how will this be changed as we willneed a batch plant site added and If we recall correctly you are removing some areas from use? Will
you be changing the quantity in the bid form?
A: We anticipate adjustment will be needed for some of the quantities for silt fence (Bid Item 5),
revegetation (Bid Item 6), topsoiling (Bid Item 18), excavation associated with topsoiling (Bid Item 12),and possibly barbed wire fence (Bid Item 34). Any changes to the Bid Schedule quantities will be
distributed in IFB Amendment #2.

1/6/2022 SITE SHOWING / PRE-BID CONFERENCE MINUTES
Note: Some items contained in the IFB were pointed out and are not included in these meeting minutes
for purpose of brevity. However, this Amendment No. 1 contains information necessary for bidders to
submit bids and all information where the lack thereof would be prejudicial to uninformed bidders.

WELCOME / INTRODUCTIONSThe Contracting Local Organization for this project is Plum Creek Conservation District (PCCD), Lockhart,
TX. The Contracting Officer (CO) for this project will be Daniel Meyer (PCCD Executive Manager) andthe Alternate CO will be Alan Burklund (PCCD Staff Member). USDA-NRCS will provide a full time
Inspector (Joshua Holden) and a Project Engineer (Brannon Sledge). Jean Ann Maynard will serve ascontracting consultant to the PCCD for the project. Project plans and specifications were prepared andsealed by AECOM. The project is receiving funds from the USDA-Natural Resources Conservation
Service, TX State Soil and Water Conservation Board and PCCD. The meeting sign-in sheet listing all
attendees is posted at the PCCD website https://pccd.org (Job Bids tab).
The conference commenced at 9:30 a.m., and Daniel Meyer welcomed attendees, made introductions,and provided a brief history of the project. Questions and Answers from the conference and site visit areincluded in this Amendment #1.

IFB No. PCCD-22-PCW21Rehab-01
Amendment #1 (1-13-2022)

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ADMINISTRATIVE PRESENTATIONThis material was presented by Jean Ann Maynard. Administrative matters not contained in the IFB
along with items in the IFB that were emphasized are as follows:
General Information
Sign-In Sheet. Be sure you listed complete information on how to contact you—be sure to include your
EMAIL address.
The IFB was published on 12/9/21. Printed copies of the bid documents are not being distributed. If you
want a copy of the Invitation for Bids (IFB) package, any future amendments to it, and the Plan Holder
Registration Form, you must download the files from the PCCD website as stated in the Bid Notice. Also,
there is a supply of blank registration forms here today if you would like register as a planholder and havenot done so yet.
Amendment No. 1 will be issued after this Site Showing. It will include today’s meeting minutes, all of thequestions/answers, an attendance list, and any changes that will be made to the original bid package. Allregistered planholders will be advised by email when it is available online. In order to receive notification,
you must submit a Plan Holder Registration Form. Very important to register. No hard copies of any
Amendments will be mailed or emailed – you will need to download them from the PCCD website.
Reminder: You must submit your acknowledgment of receipt of EACH Amendment (either on the
Amendment cover sheet form or on bid form, Offer, Exhibit A). Failure to acknowledge receipt of anamendment may result in rejection of a sealed bid.
Performance Time (PT). The PT of 573 calendar days was computed to include 20 calendar days movein time. PT is based on working the maximum allowed workweek of 60 hours per week. It also includes
non-workdays for Sundays and holidays (including Thanksgiving and Winter Breaks). Additional days will
be added for eligible weather delays and any change orders that warrant more time, as needed. PT
begins the day after receipt of Notice to Proceed.
Sealed Bids are DUE (and will be publicly opened).
(a) 10:00 AM, Wednesday, January 19 changed to Wed., January 26, 2022 – 10:00 AM(b) Must hand carry or mail. No Fax or Telegraphic bids are allowed.
(c) NOTE: Deliver or mail bid to the PCCD office (Attn: Daniel Meyer).
Engineer’s Cost Estimate. This will NOT be disclosed until after bids have been opened.
Estimated Price Range: between $5,000,000 and $10,000,000
IFB/Contract Terms & Conditions. As a local contract, various requirements from Texas codes andstatutes govern the basic contract. However, due to Federal funding, there are also some Federal
clauses and requirements that aren’t normally found in a local contract.
Instructions to Bidders (PART I – General Provisions, Subpart B)
Encouraged to carefully read.
Section 2 – Conditions Affecting the Work. To view site (other than today) you need to make an
appointment with Daniel Meyer at PCCD office and he or an authorized person must escort you to thesite. Note that no digging or taking of core samples will be allowed.
Section 3 – Bid Must Contain (Original + 1 copy)

SEE Part I, Subpart C, Bid Forms

Exhibit A - Offer. Sign in ink (must have legal Authority to contractually bind the company).
Exhibit B – Bid Schedule. Offer must be valid for minimum of 45 days
Exhibit C. References.
Exhibit D – Bid Bond
Bid Guarantee: 5% of TOTAL bid price.

IFB No. PCCD-22-PCW21Rehab-01
Amendment #1 (1-13-2022)

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Certified or cashier’s check (from responsible TX bank). --- OR --Bid bond. (1) Must use Exhibit D form (original + 1 copy). (2) Must meet all Bid Bond Requirements
for surety as stated in Section 8. READ THIS CAREFULLY. NOTE surety must be U.S. Treasury
listed.
Exhibit E – Bidder Certifications. (1) Three sections you need to “circle” appropriate answer and writein surety information on one. (2) Certain non-Texas resident bidders must provide a Certificate ofAuthority from TX Secretary of State to transact business in Texas. (3) There are some newcertifications due to State funding (Sections J, K, and L).
Section 4 – Preparation of Bid. IFB documents and Plan Holder Registration Form must be obtainedusing the PCCD website as outlined in the Public Bid Notice. Printed copies of the IFB package are notavailable. The official printed hard copy shall take precedence over an electronic media copy. This
official file hard copy may be viewed at the PCCD office.
Submit offer in DUPLICATE (original + 1 copy of all documents).
Bidders are entitled to EXCLUDE exempted taxes in bid price. Contractor will be performing a contract
for an exempt organization. The PCCD will issue an Affidavit to the Contractor. Contractor must issue a
Tax Exempt Certificate to each supplier. Contractor is responsible to know and follow all Texas Codes
regarding this. [Details in Part II, General Conditions, Article 29]
Bid Schedule (Exhibit B). One award will be made for the Total Bid Items. Failure to price each item inthe Bid Schedule is a basis to reject bid.
Section 6 – Explanation to Bidders / Inquiries. NO verbal explanations or instructions given before awardof the contract will be binding. ALL questions regarding the meaning or interpretation of any bid
document must be submitted IN WRITING to Daniel Meyer (via Email or Fax is allowed). The deadline tosubmit written questions is noon on January 12 changed to noon on January 18. If the answer
requires interpretation of a bid document, it will be given in writing to all planholders via an Amendment to
the IFB. Please send all inquiries through Daniel Meyer and do not contact Engineer Brannon Sledge
directly.
Section 8 – Bid Bond Requirements. All bids require a bid guarantee in the amount of not less than 5% ofTotal Bid Price. Bonds must be on the form provided in the bid package.
Section 11 and 12 – Qualification/Disqualification of Bidders. Carefully note these requirements. In order
to be awarded the contract, the low bid must meet two requirements. First, bid documents are reviewed
to determine if the bid is “responsive”—meets essential elements of the IFB requirements. Then, the“responsibility” of the bidder is determined. Technical and financial references are carefully checked toensure bidder is qualified, etc. These clauses list what will be considered in determining the“responsibility” of the bidder.
Section 20 – Records. This lists documents available at the PCCD office for viewing by interested
parties. There is a large set of drawings along with a printed copy if the IFB package, a copy of the 1962
as-built plans, 3 Soil Mechanics Reports, and 3 Geologic Investigation Reports. All of these documents
also are available to view/download at the PCCD website.
Anticipated Schedule / Contracting Procedure (subject to change as needed)
NOTE: Per change in Bid Opening DATE, all estimated dates below will likely be pushed forward 1 week.
Bid Opening (January 19 January 26): Publicly open sealed bids. Declare apparent low bidder and meetwith their representative.
Issue Notice of Award. Anticipated about February 17. PCCD needs a few weeks to secure additional
Federal funding when the final contract price is known. PCCD Board will meet on February 15 to review
all bids and agree to award to lowest responsive, responsible bidder. Upon award you will have 5
workdays to submit your 1st post-award documents [See Part III – Supplemental Conditions, Article 4 for a
LIST]. You are encouraged to review these now and be prepared to submit on time (or your bid security
could be forfeited and the PCCD would move on to 2nd low bid).

IFB No. PCCD-22-PCW21Rehab-01
Amendment #1 (1-13-2022)

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2nd Post-award Documents. These will be requested at same time as Notice of Award and will be due
about March 8 (such as construction schedule, safety plan, etc.).
The Preconstruction Conference will be held about March 17. If everything is in order, the Notice toProceed will be issued a week or two after that (about March 21 or 28).
General Conditions (PART II)
Exceeding Time in Contract [Article 5]. If you do not complete work within performance time and it isdeemed in best interest of PCCD to allow Contractor to complete work (vs. terminate for default), PCCD
will assess actual damages. NO liquidated damages clause.
Actual damages will not be assessed for lost revenue and/or taxes. Actual damages will be based upon
the additional costs incurred by the Contracting Local Organization (CLO), the Texas State Soil andWater Conservation Board, and USDA-Natural Resources Conservation Service Engineer/Inspector
resulting from the Contractor not completing the work within the allowable performance period. These
costs include but are not limited to personnel costs (Inspector, Project Engineer, Contracting Officer andrelated personnel), travel costs (lodging, per diem, mileage, etc.), additional supplies, etc. Your bonding
company can contact PCCD if it has additional questions about this clause.
The clause also allows for an extension of performance time (without terminating the Contractor’s right toproceed or charging Contractor with actual damages) if a delay in completion of the work arises fromunforeseeable causes beyond the control and without the fault or negligence of the Contractor. Note that
TIME only is allowed (no costs are allowed) for an excusable delay.
This clause also has a segment entitled “Delays Due to COVID-19”. PCCD shall follow guidelines of
OSHA, CDC, and TX Department of State Health Services in determining if/when work would need to besuspended and resumed.
Payments / Invoicing Requirements [Article 7]. Progress payments will be made monthly. Per Texas
Water Code, PCCD shall retain 10 percent of progress payments for the first 50% of the work until final
completion and acceptance of the work without any interest due to the Contractor. Please note that thepayment due date for PCCD is within 45 days of receipt of “proper” invoice. They will strive to pay sooner
if possible.
Per paragraph (h), Contractor and Subcontractors must follow TX Government Code 2251 rules forpaying others for goods, services, etc. related to performing the work.
Superintendence [Article 10]. Must have a full-time superintendent acceptable to CO at all times. You
will be asked to propose an Alternate superintendent for approval so that you have a backup in place toserve in the absence of the regular superintendent.
Permits and Responsibilities [Article 11] and Other Contracts [Article 13]. The Contractor is responsible
to determine all Federal, State, and municipal laws, codes and regulations that apply to this project andcomply with them. Also, Contractor is required to obtain all necessary licenses and permits at own
expense. The Contractor is responsible for all materials delivered and work performed until completion
and acceptance of the entire construction work. NOTE, however, that PCCD is responsible to obtain a
TxDOT temporary/permanent entrance permit if one is required (per CSpec-5). Any other permits
required to perform the work are Contractor’s responsibility.
Real Property Rights [Article 16]. PCCD has acquired all landrights to perform the work and theConstruction Work Limits are shown on the drawings.
Contractor shall obtain owner’s advance written approval if he/she plans to enter, remove, or otherwise
make use of adjacent property, roads, utility lines, fences, and other improvements not included within thereal property rights provided by the Contracting Local Organization. A copy of the written approval mustbe submitted to the Contracting Officer. Any associated costs are Contractor’s responsibility. Anychanges to items already designated in the contract (e.g., site entrance, campsite, etc.) must be approvedby the Contracting Officer at his sole discretion.
Water [Article 19]. Contractor is responsible to provide and maintain at own expense an adequate supplyof water needed to perform the work. Contractor must locate and arrange for adequate water source(s)IFB No. PCCD-22-PCW21Rehab-01
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and obtain any required permits to take/use water. A copy of those permits will need to be submitted to
the Contracting Local Organization.
Workweek - Construction Schedule [Article 20]. Requires written schedule prior to commencement ofwork (CO must approve). Maximum Work Week: Monday – Saturday (up to 11 hours per day) not toexceed 60 hours per week. Work may be performed during daylight hours only.
Holidays: Project will be shut down (and days are included in the performance time) for dates shown inthis clause. If performance time is extended beyond 573 calendar days, this article states additional
holidays/breaks when no work may be performed, and those days will be added to the performance timeby contract modification.
Subcontractors [Article 21]. All require CO written approval (prior to signing a subcontract).
Surveys [Article 22], Shop Drawings [Article 30], and Layout of Work [Article 35]. Some general
information. Brannon Sledge will discuss contract requirements more thoroughly in his technicalpresentation.
Suspension of Work [Article 23]. Contractor is eligible to recover damages for any unreasonable delays
as specified in this clause. Includes additional performance time and damage costs (excluding profit).
Weather [Article 26]. PT in the IFB does not include any adverse weather delays. PT will be extended if
warranted by weather or its effects. Allows TIME only (not costs or damages).
Quantity Variations [Article 28]. 25% clause for estimated quantities in bid schedule. Variations within
25% are paid at the bid price and there is no adjustment in performance time. If variation exceeds 25%(over or under), the contract price/time is equitably adjusted for the quantity that exceeds 25% (over orunder). [This differs from Article 3 regarding “Changes”. If any new work is added to the contract (or any
work is deleted), this is not a Quantity Variation and Contractor is entitled to an equitable adjustment in
the contract price and performance time.]
Accident Prevention and Safety [Article 41]. Includes Supplement to OSHA regulations with manyrequirements. Brannon Sledge will cover later. VERY important – will monitor and enforce safety.
Supplemental Conditions (PART III)
Insurance Requirements [Articles 1-3]. Read carefully. Due 5 workdays after receipt of Notice of Award. If
approved subcontractors are not covered on prime contractor’s insurance policies, subcontractor must
provide insurance certificates through prime contractor to CLO with same types/levels of coverage. NOTE
that most policies require PCCD to be listed as additional named insured and all policies must include a
waiver of subrogation.
Post-Award Information [Article 4]. Lists items you must submit within 5 workdays after receipt of Noticeof Award. Be prepared to do this!
Performance of Work [Article 5]. The prime contractor must perform at least 20% of work with own
forces.
Commencement, Prosecution, and Completion of Work [Article 6]. Note that you must commence “work”
within 20 calendar days of date you receive written Notice to Proceed. Move-in does not qualify as“work”.
Wage Rates [Article 8]. Because construction, must pay prevailing wage rates for laborers andmechanics. Rates in PART VI. Weekly certified payrolls are not required.
Ethics / Conflicts of Interest [Article 9]. Per State requirements, Contractor will be required to complete
online Form 1295, Certificate of Interested Parties.
Performance/Payment Bonds [Article 13]. Gives specific requirements. (a) Bonds are due 5 workdays
from date receive Notice of Award. (b) Penal sum: 100% of contract award price.
Special Federal Requirements [Articles 14 - 19]. EEO, affirmative action, debarment & suspension,
lobbying, clean air and water. Article 17A is a State certification.

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Subcontractor Certification (TPDES) [Article 20]. Subcontractors who perform work that may impact
pollution control measures must sign a certification form (see Appendix A of Construction Specification 5).

TECHNICAL PRESENTATIONThis material was presented by Brannon Sledge (Project Engineer). Technical matters not contained in
the IFB and additional items emphasized are as follows:
PART II – GENERAL CONDITIONSARTICLE 41 – ACCIDENT PREVENTION AND SAFETY
ACCIDENT PREVENTION AND SAFETY, SUPPLEMENT TO OSHA PART 1926 AND 1910 Construction
Industry Standards and Interpretations
The Contractor shall comply with applicable OSHA safety regulations 1926. The Contracting Officer will
notify the Contractor of any noncompliance with these requirements. If the Contractor refuses to comply
with these requirements, all or part of the work may be suspended until corrective action is taken.
The Inspector and Project Engineer will have delegated authority to suspend work for any noncompliancewith safety requirements that poses a serious or imminent danger to the health or safety of the public
and/or personnel of the Contractor, NRCS, or local Sponsors.
The Supplement to OSHA 1926 and 1910 emphasizes several specific safety items which must be
understood by the Contractor prior to bidding this job. Among these items are the requirements for:
1.
2.
3.
4.
5.
6.
7.
8.
9.

Written plan for accident prevention and safety (CO must approve prior to beginning work).
First aid certificatesFirst aid facilities
Safety Meetings, weekly “tool box” and monthly
Dust control
Rollover protective structures
Backup alarms
Restroom Facilities
Hard Hat Sign must meet supplement requirements.

Hard hats shall be worn on the job site at all times and equipment shall be outfitted with working backup
alarms, seat belts, and approved roll-over protective structures.
All equipment shall be inspected by the NRCS Construction Inspector prior to use on the project.
Equipment shall be inspected at the job site.
ARTICLE 18 – MATERIAL TO BE FURNISHED BY THE CONTRACTOR
Certificates and test data shall be submitted to show compliance of materials and construction specified
in the contract requirements. Materials or equipment for which samples, certifications or test data are
required shall not be used in the work until approved in writing by the GR.
Materials which require material certifications are: Vegetation materials, Fine and Coarse Drainfill,
Concrete Mix ingredients and admixtures, curing compound, sealing compounds for joints, joint filler,
Roller Compacted Concrete ingredients, Steel reinforcement, Reinforced Concrete Pressure Pipe, PVC
plastic pipe, Ductile-Iron Pipe, Slide Gate and its appurtenances, Rodent Guards, Metal, Galvanizing,
Grout Mix design, all Fencing materials, Lime, Geotextile, and Rock Riprap.

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CONSTRUCTION SPECIFICATIONSThere are two types of specifications in this contract: (1) Construction Specifications and (2) Material
Specifications. The construction specifications are composed of two parts. The first part is called theclosed specification and is the standard NRCS construction specification that begins with the SCOPE andends with MEASUREMENT AND PAYMENT or PAYMENT. The second part is called the open
specification and consists of the ITEMS OF WORK AND CONSTRUCTION DETAILS that are written
specifically for this job.
Special emphasis items are covered below.
CLEARING AND GRUBBING 2
Bid Item 1, Clearing and Grubbing. The Contractor shall remove and dispose of all vegetation within thework limits required for the implementation of the works of improvement as shown on the drawings. This
includes the disposal of existing brush piles and downed debris required for construction. Removed
vegetation shall be chipped and used as mulch, buried onsite, or disposed of at an offsite location andshall conform to all state and local regulations. All areas shall be dressed by blading, dragging or floating
upon completion.
STRUCTURE REMOVAL 3
Bid Item 2, Structure Removal, Existing Fences. The Contractor shall be responsible for removing anddisposing all designated fences as shown on the construction drawings. In section 2, Method 1 shallapply, which requires to Contractor to mark each structure or structure part with stakes, flags, paint, orother suitable methods. In Section 3, Method 2 shall apply, which requires the Contractor to remove fence
to the bottom of the footing and/or post. The limits of fences to be removed on the drawings areapproximate, and some additional fence may exist within the construction area that are not designated.
Salvaging of existing fence is not permitted.
Bid Item 3, Structure Removal, Existing Principal Spillway. The Contractor shall be responsible forremoving and disposing of the existing principal spillway inlet, designated conduit sections, and concrete
cradle as shown on the drawings. This includes all metal work. The existing principal spillway conduit
shall be used for dewatering and shall remain open until the new principal spillway system (inlet, conduit,
impact basin, and outlet channel) installation and the dam is reconstructed to full design cross-section
over the conduit.
POLLUTION CONTROL 5
General. A SWPPP is required for this site (copy included in contract). A SWPPP (SWP3) has been
prepared and shall be amended by Contractor to include a detailed work sequence outline which definesand delineates the Contractor’s construction operation and major earthwork starting and ending times. A
copy of the approved SWP3, as amended, and the permit will be maintained at the construction site by
the Contractor. All applicable TCEQ rules and regulations concerning the TPDES and the SWP3 shall befollowed. Contractor is required to submit a NOI at least 5 business days before work commences and a
NOT when the contract is complete. The on-site inspector and the Contractor shall perform periodic
inspections of the sediment control practices. Written reports shall be prepared and filed on site with the
SWP3 and the Engineer and Contractor will sign them when remedial corrective action is needed.
Bid Item 4, Pollution Control. Includes work required to accomplish the requirements of Section 1,
including all works required to implement the SWP3, install and maintain the rock sediment filter,stabilized construction entrance, and maintenance of the sediment filters. Two stabilized construction
entrances shall be installed as shown on the drawings. In Section 7, Measurement and Payment, Method
3 shall apply. See IFB Amendment #1 for changed location of east stabilized construction entrance.

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Bid Item 5, Silt Fence. This item consists of the Contractor furnishing and installing the sediment fence
to the lengths and locations as shown on the drawings and otherwise needed to control sediment fromleaving the construction site. In Section 3, sediment filters shall be limited to geotextile sediment filters.
Silt fence material shall meet the requirements of ASTM D6461 and Material Specification 592 (seecorrection made in IFB Amendment #1). Installation of the sediment filters shall be as shown on thedrawings.
SEEDING SPRIGGING AND MULCHING 6
Bid Item 6, Vegetation, Sprigging. Contractor required to prepare seedbed, furnish and apply sprigs,
straw mulch, tackifier (or crimp) and fertilizer in all areas topsoil is designated to be placed except below
the lowest ungated outlet (elevation 498.8 on the upstream side of dam). The application rate of thefertilizer per acre shall be 30 pounds of nitrogen (N), 40 pounds of phosphorus (P) and zero (0) pounds ofpotassium (K). Prior to planting grasses, fertilizer shall be applied and worked into the soil by disking witha weighted tandem disk to a depth of approximately 4 inches.
A good quality straw Mulch of coastal bermudagrass or native bluestem mix, is required on all areas
sprigged. Straw mulch application rate is 2.5 tons per acre. The straw mulch shall be stabilized by anonasphaltic tackifier and shall be applied at a rate of 40 pounds per acre, or by mechanical crimper as
described in Section 5 of CS 6. All OSHA safety requirements shall be met when working on any slopes
steeper than 3:1.
Bid Item 7, Irrigation System. Item of work consists of furnishing and installing a temporary solid set
sprinkler irrigation system. The system shall be adequate to apply the volume of water and meet theapplication requirements. A proposed plan for the irrigation system and application shall be furnished to
the Contracting Officer by the Contractor 30 days before installing the system. An in-line, propeller typewater meter with volumetric calibration shall be installed so that all water applied for irrigation of seeded
grasses under the contract will be metered.
Bid Item 8, Irrigation Water. Item of work consists of applying irrigation water to the areas sprigged. It
shall include the cost of water and labor. The contractor shall be responsible for the water source. All
areas will be irrigated with an irrigation sprinkler system at the rates listed in Section 7.c.(2). The irrigation
system shall produce a reasonable uniform distribution of the required application over the irrigated area
without excessive runoff or erosion.
CONSTRUCTION SURVEYS 7
Bid Item 9, Construction Surveys. The surveys that are required to be conducted by the Contractor are
specified in Section 5 (Method 2). Note the Contractor is responsible for the layout of all the work. Also
the Contractor is responsible for checking (blue topping) all work as work progresses. The Contractor
shall also submit for approval in writing the name, qualifications and experience of the surveyor personnel
for approval prior to commencement of work to the Contracting Officer. Requirement for RPLS or P.E. forsome surveying duties will be added in IFB Amendment #1.
In Section 7, Records, all survey data shall be recorded in a standard hard-bound engineering survey
field book and follow industry standards. Electronically generated survey data and computations shall bebound, page numbered, and cross referenced in a bound field notebook. Survey records shall beavailable at all times during construction to the Engineer. Documentation and supporting data forprogress payments shall be submitted with each invoice. All original survey records and documentation
shall be submitted to the Engineer for final payment and acceptance.
Per 9.a.(2), benchmarks set or established by the CLO include: coordinates shown on the drawings.
These are marked by iron pins and/or monuments.
Per 9.a.(3) Initial and final cross sections for determinations of final quantities will be performed by the
CLO.

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MOBILIZATION AND DEMOBILIZATION 8
Bid Item 10, Mobilization & Demobilization. Primary access to the work area shall be from the two
existing ranch road entrances off of FM 1185 as shown on the drawings. Road base or rock meeting thematerial requirements shown on the drawings and approved by the Contracting Officer shall be placed.
The access road to the camp site and work area shall be a minimum of 14 feet wide, and shall be
constructed and maintained in a smooth, rut-free condition throughout the contract period. The contractor
shall be required to install any improvements (including temporary gates) required for site access.
Culverts shall be installed at crossings of low areas where significant concentrations of runoff water
accumulate and causes ponding of water. Work includes Demobilization, and some of these items aredescribed. Any fencing removed to allow construction access shall be restored to equal or better thanpre-construction conditions. The Contractor shall furnish a Field Office facility for the CLO and
Government, and shall meet the requirements in Section 4.a.(b)-(g). See IFB Amendment #1 for changes
to Section 4.a.(2)(a).
Section 3 PAYMENT it states, "Payment will be made as the work proceeds, after presentation of paid
invoices …. by the Contractor showing specific mobilization and demobilization costs and supporting
evidence of the charges of suppliers, subcontractors, and others." You may be asked to provide proof of
the total direct cost. You will have to submit paid invoices for the purchase of bonds and mobilization
supplies in order to be reimbursed for these items prior to the final payment. Payment for work in thisitem shall be made in BID ITEM 10: Mobilization and Demobilization, including all work for and Traffic
Control which is subsidiary to this bid item.
TRAFFIC CONTROL 9
Subsidiary Item: Mobilization and demobilization. This item of work requires the contractor to establish
and maintain traffic control at access points to the work. In Section 4, the Contractor shall furnish a written
plan to show proposed method of signing, barricading for traffic control, use of flaggers, etc. to beapproved by the NRCS Engineer and the appropriate government authority. See IFB Amendment #1
Questions/Answer section for TxDOT contact person/phone number.
REMOVAL OF WATER 11
Bid Item 11, Removal of Water. This item of work requires the contractor to submit two written plans fordiverting the surface water and dewatering the construction site and shall also include controlling waterfrom entering the new principal spillway until the dam is reconstructed to the full design cross-section overthe conduit. A coffer dam shall be required to prevent transport of sediment from the reservoir and toprotect the new principal spillway and RCC chute structure from reservoir water. This plan must be sealed
by a Texas licensed Professional Engineer and is required before beginning construction. Excavation for
the installation of the RCC chute, concrete outlet structure and rock riprap lined outlet shall be kept free ofwater during placement of RCC, concrete, rock, and/or backfilling.
EXCAVATION 21
There is no guarantee that materials obtained from the specified excavations may be used directly in thespecified fills. Stockpiling of excavated materials to be used in the specific zones of the fill shall be
required (to insure their availability). The disposal of excavated material shall include transporting,depositing, and spreading the materials on the designated fill or waste areas. Additional compensation for
disposal of excavated materials and dressing the surface of the waste area will not be made.
Bid Item 12, Excavation, Common. This item shall consist of all required excavations for thereconstruction of the embankment (including all wet excavation along the upstream slope and inlet
channel), for the new principal spillway riser, 42-inch I.D. principal spillway pipe, principal spillway impact
basin, for the RCC spillway, the rock riprap lined outlet, auxiliary spillway outlet, and outlet channels asshown on the drawings. The measurement and payment method in Section 9 is Method 3. The neat lines

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and grades shown on the drawings shall be considered the true surface of the completed excavation
unless otherwise approved by the Engineer. Suitable materials from excavation shall be stockpiled in thedesignated stockpile area shown on the drawings.
Excavation, Common, Foundation Stripping - Subsidiary Item: Excavation, Common. This item shallconsist of removing all weeds, grass, roots, and soils containing vegetative or organic material from theground surface prior to placing earthfill.
Excavation, Common, Borrow - Subsidiary Item: Earthfill, On-site Borrow (Material Types C, D, and E)
and Lime-Treated Earthfill (Material Types F and G). This item shall consist of all excavation from within
the borrow areas required to complete the specified earthfills as designated on the drawings. All
excavated slopes shall be maintained and no steeper than 5:1.
Excavation, Common, Drainfill, Fine Filter - Subsidiary Item: Drainfill, Fine Filter. This item shall consist of
all excavations required for the installation of the drainage systems as shown on the drawings, including
the toe drain trench excavation.
Excavation, Common, Drainfill, Coarse Filter - Subsidiary Item: Drainfill, Coarse Filter. This item shallconsist of all excavations required for the installation of the drainage systems as shown on the drawings.
Excavation, Common, Concrete Structures - Subsidiary Item: Concrete, Structural, and Concrete, Pipe
Cradle. This item shall consist of all excavations required for the installation of the principal spillway
system, including the principal spillway outlet structure.
Excavation, Common, Flexbase - Subsidiary Item: Flexbase. This item shall consist of all excavations
required for the installation of flexbase as shown on the drawings.
Excavation, Common, Rock Riprap and Riprap Bedding - Subsidiary Item: Rock Riprap and Riprap
Bedding. This item shall consist of all excavations required for the installation of the rock riprap and riprap
bedding as shown on the drawings.
Excavation, Common, Structure Removal - Subsidiary Item: Structure Removal, Existing Principal
Spillway. This item shall consist of all excavations required for the removal of the principal spillway inlet
riser and portions of the existing principal spillway conduit designated for removal.
EARTHFILL 23
The required fill material types and placement locations, material properties specifications, andcompaction criteria are shown on the drawings. A description of the intended material borrow source
locations are provided, but the Contractor is responsible for verifying the materials in each borrow meetsthe material specifications.
Placement moisture shall be optimum upward to +4% as determine from the above test. In Section 4
Placement, fill shall not be placed until the required excavation and foundation preparation have been
completed and blue-topped by the Contractor, and the foundation has been inspected, and approved by
the Engineer. Fill shall be placed in horizontal layers, not to exceed a maximum of 9 inch thickness. The
minimum disk blade size shall be 34” in diameter.
Bid Item 13, Earthfill, On-site Borrow (Material Types C, D, and E). This item shall consist of allearthfill and backfill required to reconstruct the embankment, the berms for the RCC Spillway outlet
channel, backfill for the existing principal spillway plunge pool and downstream channel to be abandoned,
and other backfill areas located away from the dam as shown on the drawings. In Section 6 Compaction,
Class A compaction is required, in-place dry density of materials being placed shall not be less thanwhat’s specified on the drawings.

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If available onsite sources of untreated earthfill meeting the specifications for Material Type C become
depleted, the contract will be modified to utilize material Type H (lime treated earthfill) as needed toconstruct the exterior zone of embankment.
Bid Item 14, Earthfill, Imported Borrow (Material Types A and B). This item shall consist of all earthfill
and backfill required to reconstruct the embankment adjacent to the RCC Spillway and under the RCC
Spillway as shown on the drawings. This item includes all costs required to verify that the material meetsthe specifications and supplying material to the project site. No additional compensation will be made fortransporting material to the site. In Section 6 Compaction, Class A compaction is required, in-place dry
density of materials being placed shall not be less than what’s specified on the drawings.
DRAINFILL 24
The drainfill shall meet the requirements of Material Specification 521. The percentage of drainfill
materials finer than the No. 200 U.S. Standard Sieve Size shall not be more than 3 percent, when tested
in accordance with ASTM C-117.
In Section 5, Control of Moisture, fine drainfill shall be in wet or near saturated condition when placed. No
control of moisture is required for coarse drainfill.
In Section 6, Compaction, Class A compaction is required for fine graded drainfill and coarse gradeddrainfill under the RCC Spillway. The compacted dry density shall be a minimum of 98 percent of the
maximum dry density obtained during tests performed in accordance with procedures contained in ASTM
D698. The ASTM D698 procedure shall be modified to consist of a 1-point test performed on arepresentative sample of oven-dried drainfill.
Class III compaction is required for coarse drainfill placed in the toe drain and strip drains and outlet forthe principal spillway filter diaphragm.
Bid Item 15, Drainfill, Fine Filter. This item includes furnishing and installing the fine graded drainfill andrequired for the principal spillway filter diaphragm, impact basin and filter, filter blanket, the foundation toe
drain, and the filter diaphragm for the decommissioned existing principal spillway conduit as shown on thedrawings.
Bid Item 16, Drainfill, Coarse Filter. This item includes furnishing and installing the coarse gradeddrainfill and required for the RCC spillway underdrain, impact basin drain and filter, and the foundation toe
drain.
Bid Item 17, Flexbase. This item includes furnishing and installing the Flexbase material required
beneath the Principal Spillway inlet and Impact Basin foundations as shown on the drawings. Flexbase
shall be Type A, Grade 1-2 as per TxDOT Item 247, Table 1. Flexbase shall be place in maximum loose
lift thickness of 9 inches. Compaction shall be a minimum of 100% of the maximum dry density, andmoisture shall be optimum +/-2%.
Bid Item 30, Riprap Bedding. This item includes furnishing and installing the bedding material required
beneath the rock riprap as shown on the drawings. Bedding gradation requirements are shown on thedrawings.
TOPSOILING 26
The Contractor is responsible for performing a Soil Sample Analysis according to the County Agriculture
Extension Services criteria. Recommendations from the analysis shall be incorporated into revegetation
activities for areas to receive topsoil.
Bid Item 18, Topsoiling. This item requires the Contractor to salvage topsoil from required excavations,stripping operations, and from the borrow area to be placed and spread on the earthfill and exposed cut

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slopes as designated on the drawings and in the specs. Topsoil shall be stockpiled in the designatedstockpile area. Topsoil shall be processed by pulverizing and shall have the moisture content adjusted to
optimum to facilitate uniform spreading to the specified thickness.
DIVERSIONS AND WATERWAYS 27
Bid Item 19, Diversions. This item requires the contractor to construct the stub diversions as specified
on the drawings. Locations shown on the drawings are approximate, and final locations shall be
designated by the Engineer. Stub diversions shall have a 13 ft minimum base width, 3:1 side slopes, andan 18 inch minimum height. Payment shall be determined to the nearest linear foot by measurement
along the centerline of the effective height of the diversion (see Amendment #1 pen-and-ink change).
LIME TREATED EARTHFILL 28
The design lime application rate and curing time shall achieve the results as specified in Section
12. The required pre-construction and ongoing quality control testing methods and frequency forlime treated earthfill shall be as specified in Section 12.
The Contractor shall submit to the Engineer the initial test results and a detailed lime treatment Work Plan
describing the methods and procedures, and shall specify at a minimum the lime type, lime trated
application rate, required curing time, number of lime applications, mixing procedures and materials
handling, and any special procedures to prevent sulfate-induced heave. The Work Plan shall be signed
and sealed by a Professional Engineer licensed in Texas.
Quicklime shall be required when the soluble sulfate concentration is less than or equal to 3,000
ppm. Hydrated Lime shall be required if the soluble sulfate concentration exceeds 3,000 ppm.
In Section 6, Lime application, none of the methods shall apply for use of quicklime. If hydrated lime isused, Method 1 shall apply. In Section 7, Mixing, the mixing shall be accomplished by using disk and highspeed rotary mixers. A minimum of two cycles of mixing and watering shall be accomplished. Water
content at completion of mixing shall not be less than optimum. In addition to mixing and placing
requirements in sections 7 and 8, compaction, processing, and moisture content shall be performed inaccordance with the requirements of Section 5 of Construction Specification 23. In Section 9,
Compaction, Class A compaction in section 6 of Construction Specification 23 shall apply, and the inplace dry density shall be as shown on the drawings and obtained during tests performed in accordancewith the procedures contained in ASTM D698, Method A or B. Immediately before placement, thesubgrade shall be scarified and watered to create a water content suitable for the bonding of the lime
treated material. The minimum disk size shall be 34” in diameter. No separate payment will be made forwater applied to the foundation and for preparing the lime-treated earthfill.
Bid Item 20, Lime-Treated Earthfill (Material Types F and G). This item shall consist of mixing andplacing lime-treated earthfill beneath and adjacent to the RCC spillway to the lines, grades, and locations
as shown on the drawings. See IFB Amendment #1 for pen-and-ink change.
Bid Item 21, Furnishing and Handling Lime (Material Types F and G). The Contractor shall use
quicklime at 4% or hydrated lime at 5% relative to the dry unit weight of treated soil and shall be adjusted
as necessary. Adjustments to the amount of lime being used may be required. The payment for furnishingand handling lime shall be paid to the nearest ton by actual weight. Delivery tickets with the tons delivered
shall be furnished to the Construction Inspector prior to unloading the lime during approved scheduled
work hours only. Lime application will only be allowed in the lime mixing areas.
In Section 10, allow the mixture to cure/mellow for at least 7 days or longer if required based on testing
results to reduce the soluble sulfate concentration to 3,000 ppm or less prior to placement as lime-treatedearthfill.

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CONCRETE FOR MAJOR STRUCTURES 31
Bid Item 22, Concrete Structural. This item includes furnishing and placing all concrete required for theconstruction of the concrete principal spillway inlet and outlet structure, and the auxiliary spillway concrete
baffle blocks, stilling basin end sill, and upstream and downstream cut off walls as shown on theconstruction drawings. In Section 3, Concrete Mix Design, Method 1 shall apply and all concrete shallequal or exceed Class 4000. Concrete installed shall be made with Type II or V cement. Class 2 Coarse
aggregate shall be size no. 7, 57, 67, or 467. Slump range for all concrete shall be 4 inches +/- 1 inch. In
Section 13, Construction Joints, Method 1 shall apply. Joint fillers shall be according to ASTM D994 and
ASTM D1752. Cement-based coating materials shall be in powder form and shall be applied inconformance with the manufacturer’s recommendations, and shall present a uniform appearance that’s
free of check marks, blisters, cracking and other evidence of non-uniformity and/or imperfections.
Bid Item 23, Concrete, Pipe Cradle. This item includes furnishing and placing all concrete required forthe principal spillway conduit cradle as shown on the drawings.
Establishment of Permanent Reference Markers – Subsidiary Item: Construction Surveys. This willconsist of all work and materials required for the establishment of permanent reference markers (except
the benchmark cap) as shown on the drawings. Note the PRM installation requirements.
STEEL REINFORCEMENT 34
Bid Item 24, Reinforcing Steel. Item consists of furnishing and placing all steel reinforcement required
for the construction of all reinforced concrete works. It is the responsibility of the Contractor to insure thatthe reinforcement is held in place and not displaced during the placement of the concrete. Steelreinforcement shall conform to the requirements of Material Specification 539. Reinforcing steel shall beminimum Grade 60.
ROLLER COMPACTED CONCRETE 36
The minimum compressive strength in the mix design shall be 3000 psi at 28 days, and the moisture andcompaction requirements are as specified in Section 13. Curing shall meet the requirements as specified
in Section 16. The Contractor shall provide a written plan for constructing the specified vertical surfaces tothe Enginer for approval at least 60 days prior to the start of construction of vertical RCC surfaces.
Bid Item 25, Roller Compacted Concrete. This item includes furnishing and placing all RCC required forthe construction of the RCC auxiliary spillway as shown on the drawings. The Contractor shall provide aplan layout of the mixing plant as detailed in Section 22.a.(2). The RCC shall be constructed in 12 inch
lifts after compaction. Cranes and heavy equipment shall not be allowed on the RCC after placement.
Bid Item 26, Cementitious Material. This item includes furnishing and handling the cement andpozzolan required for the production of RCC required for the auxiliary spillway.
REINFORCED CONCRETE PRESSURE PIPE CONDUITS 41
Bid Item 27, Concrete Pressure Pipe, C-301, 42-Inch I.D.. This item consists of furnishing and installingthe 42” I.D. conduit for the new principal spillway as shown on the drawings. The pipe section lengths are
10 feet, and lengths other than these shall not be used unless approved by the Engineer.
Each section of pipe shall be supported at a minimum of (2) locations along its length, with the supports
being no further than 2 feet at the end of the section. Supports shall be support blocks or opposing
wedges as shown on the drawings.

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PLASTIC PIPE 45
Bid Item 28, Plastic Pipe, PVC, 6” I.D. This item includes furnishing and installing the 6-inch diameterslotted pipe and non-perforated PVC pipes, the 6-inch diameter ductile iron pipes and all appurtenances
necessary to complete the work as shown on the drawings for the RCC, foundation trench drain, and thefilter diaphragm. The PVC plastic pipe shall be AWWA C900, pressure class 165 pipe (see IFB
Amendment #1 for this pen-and-ink change); ASTM D1785, Schedule 80 pipe; or ASTM D2241, SDR 17
pipe.
DUCTILE-IRON PIPE 53
Subsidiary Item, Ductile-Iron Pipe – Plastic Pipe, PVC, 6-Inch I.D. This item consists of furnishing andinstalling one, 20 feet of 6” I.D. ductile-iron pipe as the termination section for the foundation toe drain
outfall line as shown on the drawings.
ROCK RIPRAP 61
Bid Item 29, Rock Riprap. This item includes furnishing and placing rock riprap to construct the
upstream wave berm, rock lined outlet channel, rock lined RCC auxiliary spillway outlet channel, the rockscour apron upstream of the RCC, and the rock scour pads on the sides of the RCC as shown on thedrawings. Rock Riprap Gradation requirements are shown on the drawings. The Contractor shall provide
written notice of proposed source of rock before delivery and shall provide a certified test results or otherevidence satisfactory to the Engineer from the rock quarry. Note the testing requirements in Material
Specification 523, Rock Type 1. The riprap may be equipment placed but shall not be allowed on the rockduring or after placement. Statement-of-delivery ticket showing weight to the nearest 0.1 ton is required
and shall be furnished to the Inspector at the time of delivery. Delivery of rock is allowed only during
regularly scheduled work hours. IFB Amendment #1 made a pen-and-ink correction to bid item # shownin the original specification on page 61-4.
WATER CONTROL GATES 71
Bid Item 31, Water Control Slide Gate, 12” x 12”. This item includes furnishing and installing the12”x12” slide gate, and all associated appurtenances for the principal spillway inlet. The gate shallconform to the requirements for Material Specification 571, Type MHS-1 (see IFB Amendment #1 penand-ink change), and shall be Class 55-20, Square Opening. Appurtenances shall meet the requirements
listed in Section 8.a.(3)-(11).
METAL FABRICATION AND INSTALLATION 81
Bid Item 32, Metal Fabrications. This item consists of furnishing, fabricating, galvanizing, and installingthe metal works for the trash rack, the manhole frame and cover for the principal spillway inlet, the metalframes and cleanout covers for the foundation toe drain and RCC drainage system, the metal reservoir
staff gauge, and rodent guards as shown on the drawings. All metal, with the exception of the manhole
frame and cover and any stainless steel hardware, shall be galvanized after fabrication. Shop drawings
are required to be submitted for review and approval by the Contracting Officer or Engineer.
Fence Stiles – Subsidiary Item: Fence, Barbed Wire. This item includes furnishing, fabricating,galvanizing, and installing the fence stile.
Chain Link Fence Post Base Plates – Subsidiary Item: Fence, Chain Link. This item includes furnishing,fabricating, galvanizing, and installing the chain link fence post base plates as shown on the drawings.
CHAIN LINK FENCE 91
Bid Item 33, Fence, Chain Link. This item consists of furnishing all materials and labor required for
installation of the chain link safety fence on top of the impact basin and auxiliary spillway sidewalls as

IFB No. PCCD-22-PCW21Rehab-01
Amendment #1 (1-13-2022)

Page 20 of 21

shown on the drawings. In Section 2, all fence components shall be galvanized only and not PVC coated.
Materials or components damaged prior to project completion shall be replaced at no cost to the owner.
All chain link fence materials shall meet the requirements listed in Section 6.a.(4)-(9).
FIELD FENCE 92
Bid Item 34, Fence, Barbed Wire. This item consists of furnishing all materials required and constructing
fences of the type designated on the drawings, including the barbed wire fence for the principal spillway
impact basin. This bid item includes 6 gates as shown on the drawings. Locations shown on the drawing
are approximate, and final location of the fences shall be as staked by the Engineer. No additional
compensation will be made for additional bracing or special anchorage required as a result of the final
layout staked by the Engineer (see IFB Amendment #1 pen-and-ink change).
CONTRACTOR QUALITY CONTROL 94
Bid Item 35, Contractor Quality Control. This item consists of furnishing all equipment, tools, materials,
and labor to perform all work as defined in the specifications. In Sections 3 and 4, Method 2 shall be
used. This requires the quality control activities to be performed by competent personnel who areseparate and apart from the line supervision and who report directly to management. Also, offsite testinglaboratories shall be certified or inspected by a nationally recognized entity. Names of quality control
personnel and their duties, qualifications, certifications, and authorities are required and shall be
submitted to the CO for approval. A written plan (quality control system) must be submitted to the CO for
approval within 10 calendar days after notice of award.
Daily QC reports are required to be submitted to the NRCS Inspector by the end of each workday or thestart of the following workday. Any testing done by the CLO is for the sole benefit of the CLO. It is theContractor’s responsibility to perform tests to prove and ensure that all work performed meets the contract
requirements. All tests shall be conducted in accordance with the appropriate ASTM method and withequipment that meets the requirements of the specified ASTM test method. Contractor’s scheduling of
construction activities may require more than one on-site quality control inspector (note the degree of
quality control specified). All work that requires full-time/continuous quality control inspection arelisted in Section 10.a.(8). In Section 10.a.(8)(n), metal fabrication shall consist of full timeinspection (see pen-and-ink change in IFB Amendment #1).
GEOTEXTILE 95
Bid Item 36, Geotextile. This item consists of furnishing and placing geotextile under the rock riprap
located along the upstream wave berm, rock lined principal spillway outlet channel, rock lined auxiliary
spillway outlet channel, and the rock scour apron upstream of the auxiliary spillway as shown on thedrawings. In Section 5, Method 2 shall apply. The geotextile shall be Non-Woven Class I as defined inMaterial Specification 592, Table 592-2. The geotextile shall have the properties indicated in Table 592-2(see correction in IFB Amendment #1) of Material Specification 592 as defined in Section 7.a.(4).
CONDUIT ABANDOMENT 99
Bid Item 37, Conduit Abandonment. This item includes filling the existing principal spillway conduitdesignated to be abandoned with the job mix as specified in Section 5. In Section 8, maximum groutpressure shall not exceed 4 psi.
GEOTECHNICAL INSTRUMENTATION AND MONITORING 401
Bid Item 38, Geotechnical Instrumentation. This item includes furnishing and installing, maintaining,and monitoring geotechnical instrumentation as designated on the drawings. See Section 4 for all
pertinent submittals. See Section 5 for instrumentation firm and personnel requirements. See Tables 401(1-5) for monitoring details and locations.

IFB No. PCCD-22-PCW21Rehab-01
Amendment #1 (1-13-2022)

Page 21 of 21

GROUTED ANCHOR BARS 446
Subsidiary Item, Grouted Anchor Bars – Concrete Structural and Reinforcing Steel (see pen-and-ink
correction in IFB Amendment #1). This item includes furnishing, drilling, installing, and grouting anchor
bars at the locations shown on the Drawings or otherwise approved by the Engineer to secure theconcrete baffle blocks and end sill to the RCC stilling basin.
Site Visit
Items designated at the site visit included: Construction entrance, access routes, construction campsitearea and stockpile areas, borrow areas, embankment, lime mixing areas, waste area, fences to be
removed, new principal spillway pipe location, and approximate RCC Spillway location.
STOP #1: Alternate Stockpile Area east of the embankment
STOP #2: Top of Embankment at the Existing Principal Spillway
Drawings
Drawing TX-EN-0754, Sheets 1 thru 83 were reviewed.

---------------------------------------------------------------------------------------------------------------ATTACHMENTS:
Revised Drawings (sealed 1/13/2022) Sheets 2, 4, 5, 7, 9, 11, 37, 73, 83. DISCARD these sheets
sealed 8/4/21 and REPLACE with the attached revised sheets.
DISTRIBUTION:
To be posted on PCCD website along with copy of attendance sign-in sheet. All registered plan holders
and 1/6/22 site showing attendees will be advised via email (or otherwise) when Amendment #1 isavailable for downloading from www.pccd.org/ (Job Bids tab)“Internal” personnel, via email

FILECODE: IFB Tab 4A (Site Showing)GENERAL NOTES:
1.

THE GENERAL NOTES AND TYPICAL DETAILS ARE GENERAL AND APPLY TO THE ENTIRE PROJECT EXCEPTWHERE THERE ARE SPECIFIC INDICATIONS TO THE CONTRARY.

2.

CONTRACTOR SHALL BE RESPONSIBLE FOR FIELD VERIFYING ALL EXISTING CONDITIONS, INCLUDING
LOCATION AND DIMENSIONS OF ALL EXISTING UTILITIES. CONTRACTOR SHALL NOTIFY OWNER'S RESIDENTREPRESENTATIVE IF THERE IS A CONFLICT BETWEEN THE CONTRACT DOCUMENTS AND EXISTING CONDITIONSBEFORE PROCEEDING WITH WORK.

3.

CONTOURS WERE OBTAINED FROM SURVEYS PERFORMED IN NOVEMBER 2019. CONTRACTOR SHALL MAKE
SITE SURVEYS AS NECESSARY FOR CONSTRUCTION AND IN ACCORDANCE WITH CONSTRUCTION
SPECIFICATION 7, CONSTRUCTION SURVEYS.

4.

THE LIMITS OF CONSTRUCTION ARE SET 2 FEET INSIDE PERMANENT AND TEMPORARY EASEMENTS UNLESSOTHERWISE SHOWN. CONTRACTOR SHALL STAY WITHIN THE LIMITS OF CONSTRUCTION AND NOT VENTURE
OFF THE ACCESS ROADS EXCEPT FOR DIRECT ACCESS TO THE WORK AREAS. CONTRACTOR SHALL CLEARLYMARK THE LIMITS OF CONSTRUCTION WITH SILT FENCE.

5.

COMPLY AND CONDUCT WORK IN ACCORDANCE WITH OWNER'S SECURITY REGULATIONS AND
REQUIREMENTS. PROVIDE SITE SECURITY AS NECESSARY TO PROTECT AGAINST VANDALISM AND LOSS BY
THEFT.

6.

CONTRACTOR SHALL MANAGE AND PROTECT THE WORK FROM FLOOD FLOWS, STREAM FLOWS, SURFACEWATER RUNOFF, GROUNDWATER OR ANY OTHER WATER ENCOUNTERED DURING THE PROGRESS OF THE
WORK IN ACCORDANCE WITH CONSTRUCTION SPECIFICATION 11, REMOVAL OF WATER.

7.

NOTIFY OWNER OF ANY SIGNS TO BE TEMPORARILY REMOVED. ALL EXISTING SIGNS TEMPORARILYREMOVED, IF ANY, SHALL BE STORED ON SITE BY THE CONTRACTOR AND SHALL BE REINSTALLED BY THE
CONTRACTOR AT THE END OF CONSTRUCTION IN THEIR ORIGINAL CONDITION.

8.

THE AREA AROUND OVERHEAD ELECTRICAL TOWERS SHALL BE PROTECTED. PROTECTION SHALL BE
PROVIDED TO ANY TOWER, POLE OR GUY STRUCTURE WHEN TRAFFIC OR CONSTRUCTION ACTIVITY IS WITHIN
50 FEET OF THE STRUCTURE.

9.

WORK UNDER THIS CONTRACT IS AUTHORIZED UNDER THE TERMS AND CONDITIONS OF THE U.S. ARMYCORPS OF ENGINEERS NATIONWIDE PERMIT 3, MAINTENANCE. SEE THE SWPPP FOR DETAILS.

10. CONTRACTOR SHALL FOLLOW REQUIREMENTS OF SWPPP.
11. CONSTRUCT THE STAGING AREAS AND VEHICLE MAINTENANCE AREAS IN A MANNER TO MINIMIZE THE RUNOFF
OF POLLUTANTS.
12. NO ON-SITE BATCH PLANT WILL BE PERMITTED FOR PRODUCING STRUCTURAL CONCRETE. AN ON-SITE BATCH
PLANT FOR PRODUCING RCC IS REQUIRED PER CONSTRUCTION SPECIFICATION 36. CONTRACTOR ISRESPONSIBLE FOR IDENTIFYING AND OBTAINING ALL NECESSARY PERMITS RELATED TO ESTABLISHING AN
ON-SITE BATCH PLANT.
1/13/22
13. NO CONSTRUCTION FILL OR MATERIALS SHALL BE PLACED OR STORED IN AREAS NOT SPECIFICALLYDESIGNATED FOR THAT PURPOSE.
14. PROVIDE PROTECTED STORAGE FOR PAINTS, CHEMICALS, SOLVENTS, AND OTHER POTENTIALLY HAZARDOUS
MATERIALS.
15. HANDLING, STORAGE, AND DISPOSAL OF ALL WASTE MATERIAL SHALL CONFORM TO THE SWPPP.
16. PREVENT POLLUTION OF SURFACE WATER AND GROUNDWATER WITH PETROLEUM PRODUCTS OR OTHER
HAZARDOUS OR REGULATED SUBSTANCES. TAKE SPECIAL MEASURES TO PREVENT CHEMICALS, FUELS, OILS,GREASES, HERBICIDES, AND INSECTICIDES FROM ENTERING DRAINAGE WAYS. DO NOT ALLOW WATER USED IN
ON-SITE MATERIAL PROCESSING AND CLEANUP, AND OTHER CONTAMINATED WATER, TO ENTER A DRAINAGE
WAY, STREAM, OR RIVER.
17. PROMPTLY REPAIR EQUIPMENT LEAKING OIL/HYDRAULIC FLUID/ETC. IMMEDIATELY REMOVE AND REPLACE, AS
NECESSARY, ALL SOILS ON WHICH SUCH LEAKAGE OCCURRED. PREVENT THE SPREAD OF LEAKED FLUIDS OR
FLUID CONTAMINATED MATERIALS FROM THE ORIGINAL LEAK AREA. BE RESPONSIBLE FOR THE PROPERHANDLING AND DISPOSAL OF ALL SUCH CONTAMINATED MATERIALS.

20. REMOVE ALL FORM WORK FOLLOWING CONSTRUCTION.
21. EXISTING ROADS, ACCESS DRIVES, UTILITIES AND PROPERTY WITHIN THE LIMITS OF CONSTRUCTIONDAMAGED BY CONTRACTOR AND ALL DISTURBED AREAS SHALL BE REPAIRED BY CONTRACTOR TO SAME OR
BETTER CONDITION PRIOR TO END OF CONSTRUCTION.
22. DATUM INFORMATION:HORIZONTAL DATUM IS TEXAS STATE PLANE, NAD83, SOUTH CENTRAL ZONE, 4204, US SURVEY FEETVERTICAL DATUM IS NAVD 88. ALL ELEVATIONS ARE IN FEET ABOVE MEAN SEA LEVEL (MSL).

Natural Resources
Conservation Service

19. PRECAUTIONS SHALL BE TAKEN DURING EQUIPMENT FUELING AND CHEMICAL TRANSFER OPERATIONS IN
ORDER TO PREVENT SPILLS FROM OCCURRING AND TO MINIMIZE THE IMPACT OF ANY SPILL THAT DOES
OCCUR. ALL FUEL AND CHEMICAL TRANSFERS SHALL BE CONTINUOUSLY MONITORED. MAINTAINAPPROPRIATE EQUIPMENT ON-SITE FOR RESPONDING TO ANY OIL OR HAZARDOUS SUBSTANCE SPILL.
ADDITIONALLY, THERE SHALL BE AN ON-SITE PROHIBITION AGAINST THE TOPPING OFF OF TANKS AND
EQUIPMENT.

United States
Department ofAgriculture

18. PROVIDE SECONDARY CONTAINMENT AROUND ANY FUEL AND CHEMICAL STORAGE AREAS TO ENSURE THATSPILLS FROM ANY SUCH AREAS DO NOT DISCHARGE FROM THE SECONDARY CONTAINMENT AREA. THE
SECONDARY CONTAINMENT CAPACITY SHALL BE ADEQUATE TO CONTAIN THE CAPACITY OF THE LARGESTTANK/CONTAINER PLUS SUFFICIENT FREEBOARD TO CONTAIN PRECIPITATION.

ALAMO DR

D

N

SR

NG

N

TO

LD

RI
SP

1/13/22T
LY

0EXISTINGPARTIALLY-PAVED ROAD

O

75

150

300

FM 1185
SCALE IN FEET

k
ee
Cr
y
r

D
EXISTING AUXILIARY SPILLWAY

EXISTING UNIMPROVEDACCESS ROAD
EXISTING AUXILIARY SPILLWAY
CREST EL. 517.0
EXISTING PLUNGE BASIN(TO BE REMOVED)
1/13/22

EXISTING METAL SHEDS(OWNER TO REMOVE PRIORTO CONSTRUCTION)

EXISTING PRINCIPALSPILLWAY CONDUITEXISTING FENCE(TO BE REMOVED)

BM1G
PRM343G

PRM3800G

EXISTING DAM, AS-BUILTCREST EL. 522.3

1.

TOPOGRAPHY AND EXISTING SITE FEATURES ARE BASED ON FIELDSURVEYS CONDUCTED BY NRCS COMPLETED IN MAY OF 2014, AND
SUPPLEMENTAL SURVEYING OF THE SITE PERFORMED BY VICKREY
AND ASSOCIATES, INC., SAN ANTONIO, TEXAS IN DECEMBER 2018.

2.

THE HORIZONTAL CONTROL DATUM IS TEXAS STATE PLANE, SOUTH
CENTRL ZONE, NORTH AMERICAN DATUM 1983 (NAD83). THE
VERTICAL CONTROL DATUM IS NORTH AMERICAN VERTICAL DATUM
1988 (NAVD88) USING GEOID 12A. ALL REFERENCED ELEVATIONS AND
HORIZONTAL COORDINATES ARE IN U.S. SURVEY FEET.

3.

SEE SHEETS 73 THROUGH 82 FOR DATA FROM 2018 GEOLOGICINVESTIGATION.

4.

CONTRACTOR SHALL VERIFY THE LOCATION OF ALL UTILITIES PRIORTO THE START OF WORK.

5.

TYPICAL EXISTING EMBANKMENT SECTION ELEVATION INFORMATIONSHOWN HEREON IS PER AS-BUILT DRAWINGS USING A VERTICALDATUM NGVD29.

6.

THE AS-BUILT DRAWINGS WILL BE AVAILABLE FOR REVIEW AT THE
PLUM CREEK CONSERVATION DISTRICT OFFICE AND ONLINE AT
WWW.PCCD.ORG, JOB BIDS TAB ALONG WITH SITE 21 REHABILITATION
BID DOCUMENTS..

7.

LOCATION OF EXISTING STRUCTURES AND FENCES SHOWN ARE
APPROXIMATE, AND MAY NOT INCLUDE ALL STRUCTURES AND
FENCES IN THE AREA. CONTRACTOR SHALL FIELD VERIFY LOCATIONSOF ALL STRUCTURES AND FENCES IN THE VICINITY OF THE WORK.

NORMAL POOL EL. 498.8 (NAVD88)

EXISTING UNIMPROVEDACCESS ROAD

EXISTING DAMUPSTREAM SIDEDOWNSTREAM SIDE

14.0'
AS-BUILT TOP OF DAM EL. 522.3
AS-BUILT AUXILIARY SPILLWAY CREST EL. 517.0
AS-BUILT PRINCIPAL SPILLWAY CREST EL. 505.3

BENCHMARKS

2.5
:1

:1
2.5

BM ID

NORTHING

EASTINGELEVATION

PRM343G

13,898,301.57

2,396,084.04

534.539

PERMANENT REFERENCE MARKER STA. 3+43

DESCRIPTION

BM1G

13,898,047.34

2,394,640.91

525.635

5/8" IRON ROD ON TOP OF DAM (APPROX. STA. 18+10)

PRM3800G

13,897,704.85

2,392,680.38

522.873

PERMANENT REFERENCE MARKER STA. 38+00

14' BERM AS-BUILT EL. 500.0

12' BERM AS-BUILT EL. 499.9

1:
1

12'
MIN.

VARIES

EXISTING CUTOFF TRENCH

1

1:

TYPICAL EXISTING EMBANKMENT SECTION
N.T.S.

Natural Resources
Conservation Service

NOTES:

United States
Department ofAgriculture

EXISTING PRINCIPAL SPILLWAY INLET
CREST EL. = 505.9 (NAVD88)
CREST EL. UPPER PORTS = 501.0 (NAVD88)
CREST EL. LOWER PORTS = 498.8 (NAVD88)

SP

N

EXISTING PARTIALLY-PAVEDENTRANCE

T

D
OL

LY

k
Cree
Dry

RI

N
TO

1/13/22

ALTERNATE STABILIZEDCONSTRUCTION ENTRANCE(SEE SHEET NOTES AND SHEET 83
FOR ADDITIONAL REQUIREMENTS)

D

R
GS

1/13/22PROPOSED STABILIZED CONSTRUCTIONENTRANCE (SEE SHEET NOTES AND SHEET 83
FOR ADDITIONAL REQUIREMENTS)

ALTERNATE
STOCKPILE AREAN
SITE ACCESS ROUTE

FM 1185
EXISTING PARTIALLY-PAVED ROAD
/ ALTERNATE SITE ACCESS ROUTE(SEE NOTE 7)
1/13/22

ALTERNATECONSTRUCTION CAMPSITE

0

STOCKPILE
AREA

75

150

300

SCALE IN FEET

AUXILIARY SPILLWAY
OUTLET CHANNELCONSTRUCTIONCAMPSITE

EXISTING FENCE

ON-SITE RCC
BATCH PLANT

1/13/22

STA. 17+35.00
PROPOSED DAM= STA. 1+83.10 REHAB PRINCIPAL SPILLWAY
EXISTING METAL SHEDS(OWNER TO REMOVE PRIORTO CONSTRUCTION)

WASTE AREAREHAB DAM, TOP OF DAM EL. 526.7 (SEE SHEETS 8 & 9)
REHAB DAM IS OFFSET 14' D/S OF EXISTING DAM
ALTERNATE
STOCKPILE
AREA

16' GATE

16' GATE

16' GATE

16' GATE
1/13/22
LIME MIXING
AREA

25' STORMWATER DIVERSION(TYP, 4 TOTAL)REHAB RCC AUXILIARY
SPILLWAY (SEE SHEET 37)

LIMITS OF REHAB PRINCIPALSPILLWAY EXCAVATIONREHAB PRINCIPALSPILLWAY (SEE SHEET 17)

STA. 20+90.00= STA. 1+66.10

12' WIDE CROSSING BERM, EL. 514.5

PROPOSED DAMREHAB RCC AUXILIARY SPILLWAY

EXISTING PRINCIPAL SPILLWAY TO
BE DECOMMISSIONED (SEE SHEET 7)
BORROW AREA 1

ALTERNATE LIME MIXING AREA
(OPTIONAL)REHAB PRINCIPAL SPILLWAY LOWPORT (NORMAL POOL), EL. 498.8

PLUM CREEK
SITE NO. 21

REHAB TOP OF DAM EL. 527.0

REHAB PRINCIPAL SPILLWAY CREST EL. 500.7

1/13/22REHAB AUXILIARY SPILLWAY CREST EL. 518.9

THE CONTRACTOR SHALL BE LIABLE FOR DAMAGE TO IMPROVEMENTS AND UTILITIES ALONG THE ACCESS ROUTE
AND AT OR NEAR THE WORKSITE. UTILITIES MAY EXIST AND NOT BE SHOWN ON THE CONSTRUCTION DRAWINGS.
THE SITE SHALL BE CAREFULLY SCRUTINIZED FOR EVIDENCE OF UTILITIES. AT A MINIMUM, PRIOR TO ANY GROUNDDISTURBANCE, THE TELEPHONE NUMBER 811 SHALL BE CALLED TO ASCERTAIN IF UNDERGROUND UTILITIES EXISTIN THE GENERAL WORK AREA. CALLING THIS TELEPHONE NUMBER WILL ONLY ASCERTAIN THE EXISTENCE OF
UNDERGROUND UTILITIES OWNED BY COMPANIES THAT SUBSCRIBE TO THIS ORGANIZATION. THERE MAY BE
OTHER UNDERGROUND UTILITIES IN THE WORK AREA.

2.

THE CONTRACTOR SHALL NOTIFY THE OWNERS OF ALL UTILITIES A MINIMUM OF TEN (10) DAYS IN ADVANCE OF
INTENT TO PERFORM WORK IN THE VICINITY OF THE AFFECTED UTILITY. THE NOTICE SHALL BE IN WRITING AND A
COPY SHALL BE FURNISHED TO THE CONTRACTING OFFICER.

3.

THE APPROXIMATE LOCATIONS OF THE ACCESS ROAD, CONSTRUCTION CAMPSITE, STOCKPILE, BORROW, AND
WASTE AREAS ARE SHOWN. THE FINAL LOCATIONS OF THESE AREAS SHALL BE DESIGNATED AT THE TIME OF
SHOWING OF THE WORKSITE TO PROSPECTIVE BIDDERS.

4.

THE CONTRACTOR SHALL BE RESPONSIBLE FOR FURNISHING, INSTALLING, AND MAINTAINING ALL BARRICADES,WARNING SIGNS, TRAFFIC CONTROL DEVICES, ETC. NECESSARY TO CONTROL TRAFFIC AND PROVIDE FOR PUBLIC
SAFETY AT THE ENTRANCE TO THE SITE (REFER TO CONSTRUCTION SPECIFICATION 9).

5.

CONSTRUCTION ACTIVITIES SHALL NOT OCCUR OUTSIDE THE DESIGNATED WORK LIMITS, UNLESS OTHERWISEAUTHORIZED BY THE CONTRACTING OFFICER IN WRITING.

6.

THE APPROXIMATE LOCATION OF THE FENCES AND GATES TO BE CONSTRUCTION ARE SHOWN. FINAL LOCATIONSSHALL BE AS STAKED BY THE ENGINEER. SEE SHEET 4 FOR EXISTING FENCES TO BE REMOVED.

7.

ONLY LIGHT VEHICULAR TRAFFIC IS PERMITTED ON EXISTING PARTIALLY-PAVED ROAD, UNLESS ALTERNATESTABILIZED CONSTRUCTION ENTRANCE AND ALTERNATE SITE ACCESS ROUTE IS ESTABLISHED (AT CONTRACTOR'SOPTION). EXISTING PARTIALLY-PAVED ENTRANCE/ROAD SHALL BE RESTORED TO PRE-CONSTRUCTION CONDITIONSFOLLOWING CONSTRUCTION AT THE SOLE EXPENSE OF THE CONTRACTOR
1/13/22

BORROW AREA 2

United States
Department ofAgriculture

1.

LEGEND:
EXISTING FENCE TO REMAIN
FENCE TO BE CONSTRUCTEDWORK LIMITS

Natural Resources
Conservation Service

NOTES:

N
EXISTING INLET STRUCTURE
TO BE REMOVED (SEE NOTE 4)

2.0:1

EXISTING PLUNGE BASIN. ROCK RIPRAPSHALL BE REMOVED AND PLUNGE BASINSHALL BE BACKFILLED.

2.0:1

EXISTING 30" ID RCP PRINCIPALSPILLWAY CONDUIT TO BE GROUTEDFULL AND ABANDONED IN-PLACE(SEE CONSTRUCTION SPECIFICATION 99)
2.0:1

2.0:1

2.0:1

2.0:1

2.0:1

2.0:1

EXISTING DAMAPPROXIMATELY 30' OF EXISTING
PRINCIPAL SPILLWAY CONDUITTO BE REMOVED (SEE NOTE 5)

APPROXIMATELY 20' OF EXISTING
PRINCIPAL SPILLWAY CONDUITTO BE REMOVED (SEE NOTE 7)
APPROX. LIMITS OF EXCAVATIONFOR REHAB PRINCIPAL SPILLWAYAPPROXIMATE LIMITS OF EXCAVATIONFOR CONDUIT AND CRADLE REMOVAL AND
AND PLUGGING OPERATION (SEE NOTE 6)

APPROXIMATE LIMITS OF EXCAVATION FORCONDUIT AND CRADLE REMOVAL AND
PLUGGING OPERATION (SEE NOTE 6)

PLAN - EXISTING PRINCIPAL SPILLWAY DECOMMISSIONING
0

5

10

20

SCALE IN FEETEXISTING DAM
STA. 2+26.8
EL. 519.0

REHAB DAM
530

1/13/22530

EXISTING GROUND

520

520

AX

VM

5 ANTI-SEEP COLLARS @ 20'-0" C.C.

:1
2H

510
EXCAVATE, REMOVE,AND DISPOSE OF
THREE (3) SECTIONS OF
PIPE AND PIPE CRADLE(SEE NOTE 3)(TO BE ABANDONED IN-PLACE)
:1V

MA

X

180.0' OF 30" ID RCP TO BE GROUTED FULL AND ABANDONED IN-PLACE(SEE CONSTRUCTION SPECIFICATION 99)

2+00

2+50

3+00

480
EXISTING PIPE SUPPORT(SEE NOTE 9)

470
4+00

3+50

0

NOTES:
1.

EXISTING CONDUIT MAY BE USED TO DEWATER THE RESERVOIR / SITE DURING
CONSTRUCTION. SEE CONSTRUCTION SPECIFICATION 11.

2.

DRAWINGS OF EXISTING STRUCTURES WERE DEVELOPED FROM THE AS-BUILT DRAWINGS. AS
A RESULT, THE DIMENSIONS OF EXISTING FACILITIES ARE APPROXIMATE. ACTUALDIMENSIONS COULD VARY FROM DIMENSIONS AND THICKNESS SHOWN. CONTRACTOR SHALLFIELD VERIFY ACTUAL DIMENSIONS PRIOR TO THE START OF WORK. A COPY OF THE AS-BUILTDRAWINGS ARE AVAILABLE FROM THE CONTRACTING OFFICER.

4.

5.

REINFORCEMENT AND EMBEDDED METALWORK NOT SHOWN. HOWEVER, AS-BUILT DRAWINGS
INDICATE THAT ALL CONCRETE EXCEPT THE PIPE CRADLE IS REINFORCED. HOWEVER, THE
AS-BUILT DRAWINGS ALSO INDICATE THAT THE LAST 17' OF PIPE CRADLE (DOWNSTREAM END)
IS ALSO REINFORCED.
REMOVE AND DISPOSE OF EXISTING INLET STRUCTURE, INCLUDING TRASH RACK, METALGRADING, SLIDE GATE, AND ALL ASSOCIATED APPURTENANCES IN ACCORDANCE WITH THE
REQUIREMENTS OF CONSTRUCTION SPECIFICATION 3.
EXCAVATION FOR REMOVAL OF THE EXISTING PRINCIPAL SPILLWAY INLET STRUCTURE SHALL
BE COORDINATED WITH CONSTRUCTION OF NEW STRUCTURES.

5

10

20

EXISTING GROUNDSCALE IN FEET
6.

THE LIMITS OF EXCAVATION SHOWN ARE APPROXIMATE. ALL EXCAVATION CUT SLOPESSHOWN ARE 2H:1V OR FLATTER AS DETERMINED BY CONTRACTOR. FINAL EXCAVATION
LIMITS SHALL BE APPROVED BY THE ENGINEER.

EXISTING PRINCIPALSPILLWAY CONDUIT
:1V
2H

2H

:1V

7.

8.

9.

REMOVE AND DISPOSE OF EXISTING RCP CONDUIT AND CONCRETE CRADLE IN ACCORDANCEWITH CONSTRUCTION SPECIFICATION 3. THE BOTTOM OF THE EXISTING CONCRETE CRADLE
SHALL BE THE LOWER LIMIT OF EXCAVATION ALONG THE LENGTH OF THE CONDUIT AT THE
AREAS OF CONDUIT REMOVAL.
GROUT EXISTING RCP FOLLOWING REMOVAL OF EXISTING INLET STRUCTURE AND REMOVALOF SPECIFIED PORTIONS OF EXISTING RCP. GROUT RCP FROM DOWNSTREAM END OF RCPTO REMAIN IN-PLACE. SEE CONSTRUCTION SPECIFICATION 3 AND CONSTRUCTION
SPECIFICATION 99 FOR REQUIREMENTS REGARDING REMOVAL OF EXISTING INLETSTRUCTURE AND GROUTING OF EXISTING PRINCIPAL SPILLWAY CONDUIT RESPECTIVELY.
EXISTING PIPE SUPPORT SHALL BE REMOVED TO THE EXTENT NECESSARY FOR THE
CONTRACTOR TO PERFORM THE NECESSARY EARTHWORKEXISTING PRINCIPAL SPILLWAYAPPROX. LIMITS OF
CONDUIT EXCAVATION
6.0'

6.0'

1

TYPICAL PRINCIPAL SPILLWAY EXCAVATION LIMITS-SCALE: NTS

Natural Resources
Conservation Service

1+50

STA. 3+54.0

FILTER DIAPHRAGM TO BE ADDEDAROUND END OF REMAINING CONDUIT(SEE DETAIL 2 ON SHEET 54)

United States
Department ofAgriculture

EXISTING 30" ID RCP CONDUITON CONCRETE CRADLE

PROFILE - EXISTING PRINCIPAL SPILLWAY DECOMMISSIONING

3.

500

490

EXCAVATE, REMOVE, AND DISPOSE
OF TWO (2) SECTIONS OF PIPE AND
PIPE CRADLE
470
1+30

2H

EL. 485.6

STA. 1+74.0
EL. 492.6

STA. 1+55.6

EL. 491.7

EL. 492.6

480

STA. 1+43.3

EXISTING
ANTI-SEEPCOLLARS
490

EXISTING PLUNGE BASIN. ROCK RIPRAPSHALL BE REMOVED AND PLUNGE BASINSHALL BE BACKFILLED.

STA. 3+24.4
EL. 500.4

APPROX. LIMITS OF EXCAVATIONFOR REHAB PRINCIPAL SPILLWAY

5.0' MIN
COVER

STA. 1+37.1
EL. 495.7

ELEVATION (FT.)

510

500

REHAB EMBANKMENTELEVATION (FT.)

EXISTING INLET STRUCTURE
TO BE REMOVED(SEE NOTE 4)

AUXILIARY SPILLWAY
OUTLET CHANNEL

N
0

100

200

MATCHLINE -- STA. 19+00 (SEE SHEET 8)

SCALE IN FEET

1/13/22

3:1

R10
0.0
'

3:1

TYP.

3:1

TYP.

TYP.

EXISTING METAL SHEDS(OWNER TO REMOVE PRIORTO CONSTRUCTION)REHAB DAM, EL. 527.0
STA. 20+90.00= STA. 1+66.10

REHAB DAMRCC AUXILIARY SPILLWAY
12' WIDE CROSSING
BERM, EL. 514.5

300.0' WIDE RCC
AUXILIARY SPILLWAY(SEE SHEET 37)

STA. 39+95.2
N 13,897,706.02
E 2,392,499.13

TOP OF TOPSOIL EL. 528.0

PROJECTED EXISTINGGROUND AT ORIGINAL DAM

1V

3H:

1V

3H:

LIMITS OF RCC AUXILIARY
SPILLWAY EXCAVATION

12" MIN. STRIPPINGEXISTING GROUND AT

510

-0.4%

-33.3%

%

3.1%

520

2.0%
1.1%

STA. 39+78.6
EL. 521.5
510

STA. 34+15.3
EL. 513.7

STA. 23+00.0

BOTTOM OF
CUT-OFF TRENCH
500

490

19+00

STA. 39+95.2
EL. 527.0
530

REHAB DAMPROJECTED TOP OF PROPOSEDUPSTREAM ROCK RIPRAP WAVEPROTECTION EL. 504.0
500

540

33.2

STA. 37+10.8
EL. 514.5

STA. 34+00.0
EL. 518.7

520

EL. 513.1

STA. 35+77.9

530

STA. 38+39.4

REHAB TOP OF DAM, EL. 527.0
EL. 517.2

300.0'BENCHING

490

20+00

21+00

22+00

23+00

24+00

25+00

26+00

27+00

28+00

29+00

30+00

31+00

32+00

DAM CENTERLINE PROFILE (2 OF 2)
0

50

100

200

HORIZ. SCALE IN FEET

0

5

10

VERT. SCALE IN FEET

20

33+00

34+00

35+00

36+00

37+00

38+00

39+00

40+00

41+00

Natural Resources
Conservation Service

REHAB RCC SPILLWAY

United States
Department ofAgriculture

11

ELEVATION (FT.)

6
540

STA. 39+95.2

550

EL. 528.0

550

ELEVATION (FT.)

50

EXISTING DAM

12" MIN.
STRIPPING (TYP.)REHAB DAM
1/13/22

12.0'
CROSSING
BERM

EXISTING GROUND

16.1'

36.6'

14.0'

REHAB A.S. CREST, EL. 518.9

1' (MAX)TOP OF TOPSOIL EL. 528.0
REHAB TOP OF DAM EL. 527.0

EARTHFILL

H:1V

3.0
REHAB P.S. CREST, EL. 500.7

2' (MIN)
12" TOPSOIL

BERM EL. 514.5

REHAB P.S. LOW PORT(NORMAL POOL), EL. 498.8

1V

:
3.0H

6

SUBGRADETOP OF RIPRAP EL. 504.0

12' MIN.
WORKING
BENCH(TYP.)C
EL. VARIES

11

BENCHING

12" MIN. STRIPPING (TYP.)

TYPICAL REHAB EMBANKMENT SECTIONFROM APPROX. STA. 9+00 TO STA. 34+00
0

14.0'

5

10

20

SCALE IN FEETTOP OF TOPSOIL EL. 528.0
REHAB TOP OF DAM EL. 526.7

REHAB TOP OF DAM EL. 527.0
5.0' (MIN)

D

12" TOPSOILREHAB P.S. LOW PORT(NORMAL POOL), EL. 498.8

12" TOPSOIL

EL. 522.7

3.0:
1
2.0
:1

TOP OF RIPRAP EL. 504.0

VARIES

8.7'
CUT-OFF TRENCHTERMINATING IN STIFF
CLAY OR SHALE

TYPICAL REHAB EMBANKMENT SECTION

0FROM APPROX. STA. 3+63 TO STA. 9+00
FROM APPROX. STA. 34+00 TO STA. 39+95

5:1V

VARIES

1

1

1:

1:

EARTHFILL

12" MIN. STRIPPING (TYP.)
12.0'

2' THICK WAVE PROTECTION RIPRAP (ASTM D6092
R-150, D50≈12") SEE GRADATION TABLE THIS SHEETREHAB P.S. CREST, EL. 500.7
EXISTING GROUND

2

NTS

12" MIN. STRIPPING (TYP.)REHAB DAMCBENCHING DETAILEXISTING GROUND

1

1

6
11

6

BENCHING

RIPRAP WAVE PROTECTION(SEE DETAIL 4 THIS SHEET)

3.0:

:1V

11

REHAB DAMEXISTING GROUND

3.0H

C

3.0H

C

1.5

10

:1

20

GEOTEXTILEANCHORGEOTEXTILE
18" MIN.

SCALE IN FEET

5

6.0'

ANCHORGEOTEXTILE
18" MIN.

LOWER LIMIT OF
RIPRAP EXTENDS TO
EXISTING GROUND

EARTHFILLRIPRAP WAVE PROTECTION (STA. 12+50 TO STA. 23+00)
SCALE: 1" = 5'
0

5

10

SCALE IN FEETRCC SPILLWAY WALL
ROCK SCOUR PAD RIPRAP(ASTM D6092 R-20, D50≈6.5")
SEE GRADATION TABLE THIS SHEETAPPROX.
EXISTING GROUNDRIPRAP (R-150 OR R-300)

FINISHED GRADE

0.5'

3.0'

NON-WOVEN GEOTEXTILERIPRAP BEDDING

3.0'

NON-WOVEN GEOTEXTILE

3

3

RIPRAP TERMINATION DETAIL

44ROCK SCOUR PAD DETAIL

18

38

NTS

##

43

1" = 5'

1.
2.
3.
4.

ROCK RIPRAP FOR THE WAVE BERM SHALL MEET THE GRADATION REQUIREMENTS OF ASTM D6092 FOR
R-150 ROCK RIPRAP AS SHOWN IN THE TABLE ON THIS SHEET.
ALL ROCK RIPRAP SHALL COMPLY WITH CONSTRUCTION SPECIFICATION 61, AND MATERIAL
SPECIFICATION 523.
SPALLS AND ROCK DUST THAT PASS A 3" SIEVE SHALL CONSIST OF LESS THAN 5 PERCENT BY WEIGHT.
ROCK PLACED AGAINST CONCRETE WORKS SHALL BE PLACED CAREFULLY TO AVOID DAMAGE.

510SCALE IN FEETASTM D6092
R-300 RIPRAPGRADATIONRIPRAP NOTES:

0

ASTM D6092
R-150 RIPRAPGRADATION

ASTM D6092
R-20 RIPRAPGRADATIONSIZE(POUNDS)% LIGHTERSIZE(POUNDS)% LIGHTERSIZE(POUNDS)% LIGHTER

700

100

300

100

45

100

300

50 - 100

150

50 - 100

20

50 - 100

150

15 - 5060

15 - 50

10

15 - 5045

0 - 1520

0 - 152

0 - 15

RIPRAP BEDDING
FOR R-150 RIPRAP(C-33 No. 2)

RIPRAP BEDDING
FOR R-300 RIPRAP(C-33 No. 1)

PARTICLE
SIZE(INCHES)PARTICLE
SIZE(INCHES)% SMALLER% SMALLER

3

100

4

100

2.5

90 - 100

3.5

90 - 100

2

35 - 70

2.5

25 - 60

1.5

0 - 151.5

0 - 15

0.75

0-5

0.75

0-5

Natural Resources
Conservation Service

1

TOPSOIL

1:

ANCHOR GEOTEXTILE 18"

United States
Department ofAgriculture

2D

OUTLET CHANNEL GRADE

1.0'

D

FLOW

Mid STA. 3+93.33
N 13897761.21
E 2394410.02

SEE SHEET 39 FOR REMAINDER
OF ALIGNMENT DATA

3:1
.
TYP

3:1
PC STA. 3+48.83
N 13897804.13
E 2394398.47

2

1

N

495

TYP.

0

4'THICK R-300
ROCK RIPRAP

10

20

40

SCALE IN FEETEND SILL

APPROXIMATE LIMITS OF
EXCAVATION FOR CONDUITAND CRADLE REMOVAL AND
PLUGGING OPERATIONCONTRACTIONJOINTS (TYP)END SILLDRAIN PIPES (TYP)RCC CORNER
N: 13,897,886.16
E: 2,394,548.54

12.5' (TYP)RCC CORNER
N: 13,897,830.09
E: 2,394,229.43

25.0' (TYP)

EXISTING METALSHEDS(OWNER TOREMOVE PRIOR TO
CONSTRUCTION)
1/13/227495
25.0' (TYP)

1/13/22

1/13/22

STILLINGBASIN

TOE DRAINTOE DRAIN OUTLET PIPETOE DRAIN AND CLEANOUT(SEE 505
SHEET 49 FOR PLAN
AND PROFILE)

TYP.

3:1

500

BAFFLE BLOCKS

CLEANOUT (SEE DETAIL 1,SHEET 51) (TYP. BOTH
SIDES OF SPILLWAY)
TOE DRAIN
505

6" DIA. SOLID PVC
LONGITUDINALOUTFALL PIPE
(TYP. OF 24)

6510
AUXILIARY SPILLWAY
RCC STEPPED CHUTE

4ROCKSCOUR PAD

11520

14' TOP OF DAM

515

510

3:1

6" DIA. SLOTTED PVC
TRANSVERSE DRAIN
PIPE (TYP. OF 4)

515

520

5
525

SAND FILTERDIAGPHRAGM

RCC AUXILIARY SPILLWAY
CREST EL. 518.9

RCC CORNER
N: 13,898,045.92
E: 2,394,520.47
1/13/22150.0'

12.0'

10.0'

500

ROCK RIPRAP WAVE PROTECTION(SEE DETAIL 4, SHEET 11)
EXISTING PRINCIPAL SPILLWAY TO
BE ABANDONED (SEE SHEET 7)

E 2394338.10
N 13898147.69
BP STA. 0+00.00

510

505

Natural Resources
Conservation Service

150.0'

United States
Department ofAgriculture

12.0'

TYP.

10.0'

505

APPROXIMATE LIMITS OF
EXCAVATION FOR CONDUITAND CRADLE REMOVAL AND
PLUGGING OPERATION

515

1/13/22

3:1

LIMITS OF REHAB PRINCIPALSPILLWAY EXCAVATION
510

520

RCC CORNER
N: 13,897,989.85
E: 2,394,201.36

12' CROSSING BERM

3:1

515

525

3

520

TYP.

3:1

TYP.

STA. 20+90.00
PROPOSED DAM= STA. 1+66.10 RCC AUXILIARY SPILLWAY

3:1

SAND FILTERDIAGPHRAGM

525

4

TYP.

51.2'
CREST

90

°

525

TYP.

RODENT GUARD TYP.
ALL OUTLET PIPES(SEE DETAIL 3 SHEET 53)

D

SR

ING

PR
NS

TO

T
LY

FM 1185

AUXILIARY SPILLWAY
OUTLET CHANNEL

N

260

0

258

256

255

150

300

SCALE IN FEET

1/13/22259

75

EXISTING METAL SHEDS(OWNER TO REMOVEPRIOR TO CONSTRUCTION)

606

255
256
254

254

REHAB DAM, EL. 527.3
253

602

253
201

601
251

HA-02

HA-01

53

262

3

2

605

604

603
603

303

252

4

HA-03

1402

302
251

1
250

1

2

3

7

4
301

261

HA-04

152

151

105
B1-2

7

8

6

9

8

HA-05

10

54

9

52

302
EXISTING DAMREHABPRINCIPALSPILLWAY

257

6
HA-06

5

301
252

51

5

153

154

LIMITS OF REHABEMBANKMENT GRADING

EXISTING
PRINCIPALSPILLWAY
155

156

157

167

164

851

852

102

B1-1

BORROW AREA 1

160

158

159

PLAN LEGEND:
104

101

EXISTING NORMAL POOL, EL. 498.8
161

162

PLUM CREEK
SITE NO. 21

2014 SOIL BORING

168

163

1961 SOIL BORING

2018/2019 SOIL BORING
2018/2019 HAND AUGER BORING

107

B2-1

BORROW AREA 2
B2-2
108
110

LEGEND:

Natural Resources
Conservation Service

109

United States
Department ofAgriculture

D
OL

OL

D

SP

EXISTING GATEOPEN GRADED ROCK (SEEROCK FILTER DAM NOTE 3)GALVANIZEDWOVEN WIRE MESH
(SEE ROCK FILTERDAM NOTE 4)

2' MIN.

PROPOSED STABILIZEDCONSTRUCTION ENTRANCE

FM 1185

2
1

EXISTING FENCE

SITE ACCESS ROUTE

3'

N
TO

T
LY

k
Cree

ALTERNATE STABILIZEDCONSTRUCTION ENTRANCE(SEE DETAIL 3, THIS SHEET)

Dry

ROCK FILTER DAM(SEE DETAIL 1 THIS SHEET)

D

SR

NG
RI

CONSTRUCTIONCAMPSITE
4" MIN.

APPROX. DOWNSTREAMTOE OF EMBANKMENT

2ROCK FILTER DAM SECTION

83

SCALE: NTS

2

GALVANIZEDWOVEN WIRE MESH
(SEE ROCK FILTERDAM NOTE 4)

APPROX. UPSTREAMTOE OF EMBANKMENTSEE ROCK FILTERDAM NOTE 2

CONSTRUCTIONCAMPSITE

PLUM CREEK
SITE NO. 21

1

ROCK FILTER DAM DETAIL83

SCALE: NTS

1/13/22

SEE CONSTRUCTION
SPEC. 850' (MIN.)

LEGEND:SILT FENCEPROJECT
CONSTRUCTIONACCESSSTABILIZED CONSTRUCTIONENTRANCE

INSTALL TEMPORARY 16-FT GATE

LIMITS OF CONSTRUCTIONCULVERT TO BE PLACED. (IF NEEDED)(SEE CONSTRUCTION SPECIFICATION 8)

AREAS TO BE VEGETATED

200

400

SCALE IN FEET

1/13/22

GENERAL NOTES:
1.

2.

CONTRACTOR SHALL ADD LOCATION(S) OF SEDIMENT FENCE TO PLAN AS
REQUIRED. APPROXIMATELY 6,273 FEET OF SEDIMENT FENCE IS CURRENTLY
SHOWN.

THE STABILIZED CONSTRUCTION ENTRANCE SHALL CONSIST OF A MINIMUM OF 8"
THICKNESS OF CRUSHED ROCK PREDOMINANTLY 4" TO 8" IN SIZE. THE
AGGREGATES SHALL BE CLEAN, HARD, DURABLE, AND FREE FROM ADHERENTCOATINGS SUCH AS SALT, ALKALI, DIRT, CLAY, LOAM, SHALE, SOFT OR FLAKY
MATERIALS, AND ORGANIC OR INJURIOUS MATTER. PROVIDE A LAYER OFGEOTEXTILE BENEATH THE CRUSHED ROCK.

EXCESS ONE CFS ARE EXPECTED, OR WHERE DRAINAGE AREA EXCESS TWOACRES.

STABILIZED CONSTRUCTIONENTRANCE DETAIL83

SCALE: NTS

PRIOR TO THE END OF THE EXPECTED USABLE LIFE, THE FABRIC SHALL BE
REPLACED PROMPTLY UNLESS INSPECTION REPORTS INDICATE THAT THE
REPLACEMENT IS UNNECESSARY.

THE HEIGHT OF SILT FENCES SHALL NOT EXCEED 48 INCHES (HIGHER FENCES MAYIMPOUND VOLUMES OF WATER SUFFICIENT TO CAUSE FAILURE OF THE
ROCK FILTER DAM:STRUCTURE).
1. FINAL LOCATION OF THE FILTER DAM SHALL BE AS DIRECTED BY THE ENGINEER.
2. CONTRACTOR SHALL INDICATE ON THE PLAN ALL PRODUCT SPECIFIC STORAGE
3. ACTUAL SIZES, DIMENSIONS, QUANTITIES, ALIGNMENT AND EXTENTS SHALL BE AS 5. SPLICES IN THE FILTER FABRIC ARE NOT RECOMMENDED. WHEN JOINTS ARE
AREAS AS DESCRIBED IN THE SWP3.
2. FILTER DAMS SHOULD BE EMBEDDED A MINIMUM OF 4" INTO EXISTING GROUND.
DETERMINED IN THE FIELD BY THE ENGINEER.
1/13/22
6. UNAVOIDABLE, FABRIC SHALL BE SPLICED TOGETHER ONLY AT A SUPPORT POST,THESE AREAS SHALL INCLUDE, BUT ARE NOT LIMITED TO:
WITH A MINIMUM 6-INCH LAP.
3. USE ONLY OPEN GRADED ROCK THE SAME SIZE AS THE ROCK USED FOR THE
SEDIMENT FILTER:
STABILIZED CONSTRUCTION ENTRANCE.
-- EQUIPMENT STORAGE
7.
POST
SHALL
BE
SPACEDA
MAXIMUM
OF
6
FEET
APART
AT
THE
FENCE
LOCATION
1.
SEDIMENTFILTERSHALL
BE
FABRIC(GEOTEXTILE)
SILT
FENCESAS
DETAILEDIN-- FUEL STORAGE
4.
ROCK
FILTER DAM SHALL BE SECURED WITH 20 GAUGE GALVANIZED WOVEN WIRE
FIGURE
1
OF
ASTM
D6462-19,
STANDARD
PRACTICE
FOR
SILT
FENCE
INSTALLATIONAND
DRIVENSECURELYINTO
THE
GROUND(MINIMUM
OF
12
INCHES).
-- HAZARDOUS MATERIAL STORAGE
MESH WITH 1" DIAMETER HEXAGONAL OPENINGS. THE AGGREGATE SHALL BE
AND MAINTENANCE.
-- CONCRETE WASHOUT PITS
8. THE WIRE MESH SUPPORT FENCE MAY BE ELIMINATED BY USING EXTRA STRENGTHPLACED ON THE MESH TO THE HEIGHT & SLOPES SPECIFIED. THE MESH SHALL BE
FILTER FABRIC AND POST SPACED AT 4 FEET. IN THIS CASE, THE FABRIC ISFOLDED AT THE UPSTREAM SIDE OVER THE AGGREGATE AND TIGHTLY SECURED
2. SEDIMENT FILTER SHALL BE PROVIDED AT THE FOLLOWING LOCATIONS.
3. A DRAWING SHOWING THE LOCATIONS OF THE DRAINAGE WORKS AND ALL
STAPLED OR WIRED DIRECTLY TO THE POST.
TO ITSELF ON THE DOWNSTREAM SIDE USING WIRE TIES OR HOG RINGS. FOR IN
POLLUTION CONTROL MEASURES SHALL BE KEPT IN ACCORDANCE WITH THE
(A)
ALONG
THE
DOWNSTREAM
BOUNDARY
OF
ANY
AREA
WHICH
IS
STRIPPEDOF
STREAM USE, THE MESH SHOULD BE SECURED OR STAKED TO THE STREAM BED
STORM WATER POLLUTION PREVENTION PLAN.
MAINTENANCE:EXISTING VEGETATION AND/OR SURFACE MATERIAL DURING ANY PHASE OF
PRIOR TO AGGREGATE PLACEMENT.
CONSTRUCTION ACTIVITY.
4. IN ADDITION TO THE EMBANKMENT AND OUTLET CHANNEL EARTHWORK AREAS,
1. SEDIMENT FILTER SHALL BE INSPECTED IMMEDIATELY ATFER EACH RAINFALL AND 5. THE GUIDELINES SHOWN HEREON MAY BE MODIFIED BY THE ENGINEER.
DISTURBED AREAS WITHIN THE CAMPSITE, STOCKPILE, AND ACCESS ROAD AREAS
DAILY DURING PROLONGED RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE
(B) ALONG THE DOWNSTREAM BOUNDARY OF ANY SOIL MATERIAL WHICH IS
SHALL HAVE PERMANENT VEGETATION ESTABLISHED.
IMMEDIATELY.
6. WHEN THE SITE IS COMPLETELY STABILIZED,THE DAM AND ACCUMULATEDSTOCKPILED DURING ANY PHASE OF CONSTRUCTION ACTIVITY FOR MORE THAN 14DAYS.
SEDIMENT SHALL BE REMOVED AND DISPOSED OF IN AN APPROVED MANNER.
STABILIZED CONSTRUCTION ENTRANCE:
2. SILT DEPOSITS SHOULD BE REMOVED AFTER EACH STORM EVENT. THEY MUST BEREMOVED WHEN THE LEVEL OF DEPOSITS REACH APPROXIMATELY ONE-HALF THE(C) OTHER AREAS WHICH ARE DETERMINED BY THE CONTRACTING OFFICER TO BE
1. A STABILIZED CONSTRUCTION ENTRANCE SHALL BE PROVIDED AND MAINTAINED IN
HEIGHT OF THE SEDIMENT FILTER.
POTENTIAL SILT SOURCES.
ACCORDANCES WITH CONSTRUCTION SPECIFICATION 8 AND 9 AND TxDOT
SPECIFICATION 506. SEE DETAIL 3 THIS SHEET.

3.

SEDIMENT FILTER SHALL NOT BE USED WHERE CONCENTRATED FLOWS WHICH

4.

3

3.

SHOULD THE FABRIC ON A SILT FENCE DECOMPOSE OR BECOME INEFFECTIVE

Natural Resources
Conservation Service

100

United States
Department ofAgriculture

TIE EXISTINGFENCE INTO
CORNER POST
(BOTH SIDES)N
0

14' (MIN.)

PROJECT ROAD

GEOTEXTILE