reglab/statecodes huggingface dataset:
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 30 - DAMS › Section 5-30-1 - Approval of or permits for dams

Current through Register Vol. 43, No. 28, July 11, 2024
The chief engineer shall not approve or grant a permit for any
				dam subject to the jurisdiction of the chief engineer under the authority of
				K.S.A. 1979 Supp.
				82a-301 through 305a as amended,
				unless the applicant also receives prior approval of his or her application to
				appropriate water for beneficial use to be diverted by means of the dam for
				which the approval or permit is sought, unless the sole proposed use for the
				water is for domestic use.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-1 - Definitions

Current through Register Vol. 43, No. 28, July 11, 2024
As used in
				K.S.A.
				82a-301 through
				82a-305a and amendments thereto,
				in the regulations adopted pursuant to these statutes, and by the chief
				engineer in administering
				K.S.A.
				82a-301 through
				82a-305a and amendments thereto,
				the following terms shall have the meanings ascribed to them in this
				regulation, unless the context clearly requires otherwise:
(a) "Application" means the formal document
			 and any required supporting information that are submitted to the chief
			 engineer and request a permit, pursuant to
			 K.S.A.
			 82a-301 through
			 82a-305a, and amendments thereto.
(b) "Appurtenant works" means the
			 primary spillway and other conduits through a dam, the valves, the auxiliary
			 spillway, the service spillway, the stilling basin, any constructed outlet
			 channel, all dikes and berms designed and constructed to protect the dam, the
			 drains, and all other features constructed to protect or operate a dam.
(c) "As-built drawings" means the
			 drawings showing a permitted project and all appurtenant works as the project
			 and works were actually built. This term shall include the following:
(1) All deviations from the plans that were
			 approved by the chief engineer;
(2) the location and design of any
			 instruments and monitoring equipment that were installed at the site;
(3) the location and elevation of
			 any benchmarks; and
(4) a
			 certification that the permitted project was constructed as shown on the
			 as-built drawings.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-2 - Dams; plans and specifications

Current through Register Vol. 43, No. 28, July 11, 2024
The plans required by
				K.S.A.
				82a-302, and amendments thereto, to
				construct, repair, or modify a dam shall include sufficient views to show all
				features in three dimensions and in sufficient detail to instruct a competent
				contractor to construct, repair, or modify the dam by viewing the plans and
				specifications. All plans with multiple pages shall include an index describing
				the location of required views within the plans. The views and maps specified
				in this regulation shall be shown. Specific details shall be listed under the
				view that is typically most appropriate, but they may be displayed on another
				view to improve the legibility of the plans if sufficient detail is provided in
				the plans to describe each feature in three dimensions. The required plans
				shall include the following:
(a) Plan
			 views of the dam and dam site, which shall include both abutments of the dam,
			 the area downstream to the point where the auxiliary spillway or service
			 spillway flows enter the receiving channel, and the area upstream of the
			 upstream toe of the dam to where the borrow area will be permitted. All
			 elevations shown on plans shall be referenced to the same datum as the
			 benchmarks described on the plans. The following details shall be shown, if
			 applicable:
(1) The location of the axis of
			 the dam, showing stationing and top width limits;
(2) the toe of the upstream and downstream
			 slopes;
(3) the location of the
			 centerline and the limits of each open-channel spillway;
(4) the location of the primary spillway and
			 any stilling basin;
(5) the
			 location of each berm;
(6) the
			 location of slope protection;
(7)
			 the location of borings, test holes, and test pits;
(8) the location of intakes, outlets, valves,
			 and valve wells;
(9) the location,
			 description, and elevation of each benchmark;
(10) the location, description, and details
			 of all foundation drains;
(11) the
			 location and limits of each borrow area; and
(12) the location and topography of the area
			 where the auxiliary spillway discharge returns to the receiving stream;
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-2a - Benchmarks

Current through Register Vol. 43, No. 28, July 11, 2024
(a) At least two
			 permanent benchmarks shall be installed for future reference at each dam. Each
			 benchmark shall be located according to the following criteria:
(1) In an area where the benchmark will not
			 be disturbed, destroyed, or inundated after the dam is complete; and
(2) along the centerline of the dam on either
			 end of the dam, if practical, and in undisturbed soil.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-2b - Design reports

Current through Register Vol. 43, No. 28, July 11, 2024
(a) The
			 application for each permit to construct, repair, or modify a dam shall be
			 accompanied by a design report prepared by the engineer who designed the new
			 dam or the repair or modification of an existing dam. The design report shall
			 document every major design element of the dam, the conditions that must be
			 addressed in the construction of the project, and the manner in which those
			 conditions will be addressed. The design report shall document the design
			 process, including references to each design method and computer program
			 utilized in the design, and shall include the following:
(1) The design of any slope protection for
			 the embankment and the auxiliary or service spillway. If no slope protection is
			 provided, the report shall provide justification for not having slope
			 protection;
(2) documentation of
			 the determination of the hazard class;
(3) a report of the geotechnical
			 investigation, including the results of the testing required in K.A.R. 5-40-40
			 through K.A.R. 5-40-42, and all boring logs not shown on the plans;
(4) documentation of the embankment design
			 based upon the geotechnical investigation;
(5) documentation of the hydrological
			 evaluation, including the determination of the composite curve number and
			 drainage area;
(6) if a proposed
			 dam is part of a general plan, the report shall evaluate whether the proposed
			 dam conforms to the general plan;
(7) the design of the foundations, including
			 the proposed depth of the cutoff trench;
(8) the design of the drains, including size,
			 material gradation, interface with soil, and outlets;
(9) the design of the pipe bedding, including
			 documentation that the loading and deflection conditions are met;
(10) the stilling basin design;
(11) documentation of the flood routing or
			 routings;
(12) the gradation of
			 the material in the diaphragm and the design of the diaphragm; and
(13) any other relevant information required
			 by the chief engineer.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-3 - Specifications

Current through Register Vol. 43, No. 28, July 11, 2024
(a) Each
			 applicant shall submit specifications with the application for a permit to
			 construct a dam. The specifications shall address every major element in the
			 construction of the dam and the materials used to construct the dam. The
			 specifications shall be clear, legible, and sufficiently detailed to ensure
			 that the dam and appurtenant works will be properly constructed and shall meet
			 the requirements of sound engineering principles and commonly accepted
			 engineering practices. The specifications shall state the minimum quality of
			 materials and workmanship that is acceptable and the required materials tests
			 and testing frequency. The specifications shall cover the following:
(1) The excavation procedures;
(2) the placement and compaction of earthen
			 fill;
(3) the dewatering process;
(4) concrete and reinforcing steel
			 requirements and placement;
(5)
			 the materials for and placement of all conduits;
(6) the materials for and placement of
			 permanent erosion control measures;
(7) drains and seepage control, including
			 aggregate requirements; and
(8)
			 seeding and fencing.
The specifications shall also include an index. The
				specifications may be submitted electronically in a form and manner prescribed
				by the chief engineer.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-4 - Preparer of maps, plans, profiles, reports, and specifications

Current through Register Vol. 43, No. 28, July 11, 2024
In addition to the requirements of the Kansas state board of
				technical professions, the requirements in this regulation shall apply.
(a) Each map, plan, profile, report, and
			 specification submitted to the chief engineer for approval shall be prepared
			 by, or under the supervision of, a person who is competent in the design and
			 construction of channel changes or stream obstructions, as appropriate.
(b) Maps, plans, profiles,
			 reports, and specifications for any dam shall be prepared by, or under the
			 supervision of, a licensed professional engineer who is competent in the design
			 and construction of dams.
(c)
			 Maps, plans, profiles, reports, and specifications for any channel change or
			 stream obstruction project on a navigable stream or a stream having a mean
			 annual flow of 100 cubic feet per second or more at the proposed location of
			 the project shall be prepared by a licensed professional engineer who is
			 competent in the design of that type of project.
(d) No provision of this regulation, and no
			 decision made by the chief engineer pursuant to this regulation, shall alter
			 the responsibilities or duties of any licensee of the Kansas state board of
			 technical professions to comply with that board's requirements.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-5 - Determining capacity of a reservoir

Current through Register Vol. 43, No. 28, July 11, 2024
(a) The capacity
			 of each proposed reservoir shall be determined as specified in K.A.R.
			 5-40-2(h).
(b) The capacity of
			 each existing reservoir shall be determined by using the procedure specified in
			 K.A.R. 5-40-2(h) for contours above the water surface. The engineer determining
			 the reservoir capacity shall demonstrate the validity of the method that the
			 engineer selects to extrapolate the data for contours below the water surface.
			 The capacity of an existing reservoir shall not be reduced by including the
			 accumulated sediment.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-5a - Determining the height of a dam or barrier

Current through Register Vol. 43, No. 28, July 11, 2024
To determine the height of a dam or barrier pursuant to
				K.S.A.
				82a-301(b) and amendments
				thereto, that measurement shall be made as follows:
(a) The height of a dam or barrier that
			 extends across the natural bed of a stream or watercourse shall be the vertical
			 distance measured from the bed of the stream or watercourse at the downstream
			 toe of the dam or barrier to the lowest elevation on the top of the dam or
			 barrier, excluding any openchannel spillway and any anomalous low points.
(b) The height of a dam or barrier
			 that does not extend across the natural bed of a stream or watercourse shall be
			 the vertical distance measured from the lowest elevation of the outside limit
			 of the dam or barrier to the lowest elevation on the top of the dam or barrier,
			 excluding any open-channel spillway and any anomalous low points.
(c) The height of a proposed barrier or dam
			 shall be measured from the planned top of the dam, excluding any allowance for
			 settlement.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-6 - Waiver and stricter requirements

Current through Register Vol. 43, No. 28, July 11, 2024
(a) The chief
			 engineer may waive any of the regulations adopted under articles 40, 41, 42 and
			 43 if it is shown to the satisfaction of the chief engineer that the waiver of
			 the regulation will not pose a hazard to the public safety and that the waiver
			 is in the public interest.
(b) The
			 chief engineer may also invoke any jurisdiction granted by statute and impose
			 stricter requirements than required by rules and regulations where such
			 jurisdiction or additional requirements are necessary to protect the public
			 interest, protect the public safety or prevent damage to property.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-7 - Other maps, plans, profiles, data and specifications

Current through Register Vol. 43, No. 28, July 11, 2024
The applicant shall also submit any other maps, plans, profiles
				and specifications of the dam, channel change or obstruction and any other data
				which the chief engineer may require.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-8 - Acceptable application

Current through Register Vol. 43, No. 28, July 11, 2024
(a) To be
			 acceptable for filing, each application for a permit to construct, modify, or
			 repair a dam, other stream obstruction, or channel change shall be accompanied
			 by the statutorily required filing fee and shall contain all of the following:
(1) One copy of the completed application on
			 a form prescribed by the chief engineer and signed by the applicant;
(2) two copies of the maps, plans,
			 specifications, and profiles for a proposed or existing dam that meet the
			 requirements of these regulations or one copy of the maps, plans,
			 specifications, and profiles for any other stream obstruction or channel change
			 that meet the requirements of these regulations; and
(3) for a proposed or existing dam, one copy
			 of the design report that meets the requirements of these regulations.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-12 - As-built drawings

Current through Register Vol. 43, No. 28, July 11, 2024
(a) Each permit
			 shall be conditioned by the chief engineer to require as-built drawings for
			 each category listed in subsection (b) to be submitted within 90 days of the
			 completion of the dam, repairs, or modifications, or any extension of time
			 authorized by the chief engineer for good cause. The drawings shall be prepared
			 by a person qualified to prepare the original plans and specifications pursuant
			 to K.A.R. 5-40-4.
(b) As-built
			 drawings shall be submitted for each of the following categories:
(1) All high-impact dams;
(2) any dam, if required by the chief
			 engineer as a condition of the permit to build, repair, or modify the dam; and
(3) any dam, if required by the
			 chief engineer as the result of an approval of a change in the approved plans
			 requested by the applicant during construction.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-14 - Testing a principal spillway pipe installation in a dam; applicability

Current through Register Vol. 43, No. 28, July 11, 2024
(a) For the
			 purpose of testing the leakage rate of principal spillway pipe installation in
			 a dam, an applicant shall conduct a static pressure test of each principal
			 spillway installation constructed of corrugated metal pipe.
(b) A static pressure test shall be required
			 only of a principal spillway installation made of corrugated metal pipe, unless
			 the chief engineer determines that testing principal spillway pipe made of
			 other materials or testing other pipes used in the construction of dams is
			 necessary to protect public safety, life, or property.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-15 - Testing a principal spillway pipe installation in a dam; general procedures

Current through Register Vol. 43, No. 28, July 11, 2024
The following general procedures shall apply to all static
				pressure tests required by
				K.A.R.
				5-40-14:
(a) The applicant shall conduct the test
			 before backfilling around and over the principal spillway pipe and after laying
			 the pipe on the grade line and connecting the pipe according to the approved
			 plans and the manufacturer's requirements.
(b) The applicant, the applicant's
			 representative, or the contracting officer shall make arrangements for the
			 chief engineer, or a person designated by the chief engineer, to be present
			 during the test.
(c) The applicant
			 shall place a watertight plug in the downstream end of the pipe. The plug shall
			 be sufficient to withstand a pressure of three pounds per square inch for the
			 duration of the test. The plug shall be equipped with an acceptable means of
			 draining the water out of the pipe after completion of the test.
(d) The applicant shall fill the pipe with
			 water up to an elevation of 10 feet above the flow line at the pipe outlet, or
			 up to the principal spillway inlet elevation, whichever is less, unless a
			 different elevation is required by the test method described in K.A.R.
			 5-40-16(b).
(e) The applicant
			 shall note the exact elevation of the water surface at the time the test
			 begins.
At the end of the prescribed test duration, the applicant shall
				measure the water surface elevation.
(f) The applicant shall use one of the test
			 methods described in K.A.R. 5-40-16 to determine whether the water leakage rate
			 is acceptable.
(g) If the leakage
			 rate determined by either of the methods described in K.A.R. 5-40-16 is not
			 acceptable, the applicant shall determine the source of the leakage and correct
			 the leakage. After correction, the applicant shall perform another test in
			 accordance with K.A.R. 5-40-15 and K.A.R. 5-40-16.
(h) If the leakage rate determined by either
			 of the methods described in K.A.R. 5-40-16 is acceptable, the applicant shall
			 drain and backfill the pipe in the manner prescribed by the approved plans and
			 specifications.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-16 - Testing a principal spillway pipe installation in a dam; allowable leakage rate, test methods

Current through Register Vol. 43, No. 28, July 11, 2024
The allowable leakage rate for a principal spillway pipe
				installation in a dam shall not exceed 1,000 gallons per inch diameter of pipe
				per mile of pipe per day. The applicant shall use one of the following test
				methods in determining whether the allowable leakage rate has been exceeded:
(a) The applicant shall use the
			 following test method procedure for a drop inlet structure if the starting and
			 ending elevation of the water is within the vertical drop structure and above
			 the top of the barrel:
(1) Calculate the
			 allowable leakage rate in gallons per minute for the pipe being tested based on
			 the following formula:
The allowable leakage rate in gallons per minute = 0.000132 * d
				* l where:
d = diameter of the tested pipe in inches
l = length of the tested pipe in feet
If the allowable leakage rate in gallons per minute is
				determined to be less than one, then it shall be assumed for the purposes of
				the test that the allowable leakage rate in gallons per minute is one.
(2) Conduct the test for 15
			 minutes.
(3) If the allowable
			 leakage rate is one gallon per minute, the applicant may use the following
			 table to determine the allowable drop in the elevation of the water in the
			 riser.
Nominal diameter of riser (inches) Allowable drop (feet)
18 1.13
20 0.83
24 0.64
30 0.41
36 0.28
(4) If the measured drop in the riser exceeds
			 the corresponding allowable drop in paragraph (a)(1) above, the allowable
			 leakage rate has been exceeded, which shall not be acceptable. If the measured
			 drop in the riser is less than or equal to the corresponding allowable drop in
			 paragraph (a)(1) above, the allowable leakage rate has not been exceeded and
			 shall be acceptable.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-20 - Hazard classes of dams

Current through Register Vol. 43, No. 28, July 11, 2024
(a) The hazard
			 classes of dams shall be determined from the following based on the location of
			 the dam, the hazards found within the inundation area, and the impact of a
			 failure of a dam:
(1) A "hazard class A dam"
			 shall mean a dam located in an area where failure could damage only farm or
			 other uninhabited buildings, agricultural or undeveloped land including hiking
			 trails, or traffic on low-volume roads that meet the requirements for hazard
			 class A dams as specified in subsections (b) and (c).
(2) A "hazard class B dam" shall mean a dam
			 located in an area where failure could endanger a few lives, damage an isolated
			 home, damage traffic on moderate-volume roads that meet the requirements for
			 hazard class B dams as specified in subsections (b) and (c), damage lowvolume
			 railroad tracks, interrupt the use or service of a utility serving a small
			 number of customers, or inundate recreation facilities, including campground
			 areas intermittently used for sleeping and serving a relatively small number of
			 persons.
(3) A "hazard class C
			 dam" shall mean a dam located in an area where failure could result in any of
			 the following:
(A) Extensive loss of life;
(B) damage to more than one home;
(C) damage to industrial or
			 commercial facilities;
(D)
			 interruption of a public utility serving a large number of customers;
(E) damage to traffic on
			 high-volume roads that meet the requirements for hazard class C dams as
			 specified in subsections (b) and (c) or a high-volume railroad line;
(F) inundation of a frequently used
			 recreation facility serving a relatively large number of persons; or
(G) two or more individual hazards described
			 in hazard class B.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-21 - Class sizes of dams

Current through Register Vol. 43, No. 28, July 11, 2024
(a) Each dam
			 that the chief engineer has authority to regulate pursuant to
			 K.S.A.
			 82a-301 et seq., and amendments thereto, with
			 an effective height of less than 25 feet and an effective storage of less than
			 50 acre-feet shall be considered to be a class size 1 dam. The class size of
			 all other dams shall be determined from the following table:
Class size Size factor
2 less than 3,000
3 3,000 through 30,000
4 more than 30,000
(b) Each existing permitted dam and each dam
			 for which an application was submitted before the effective date of this
			 regulation shall continue to have the effective height measured from the flow
			 line of the stream at the centerline of the dam.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-22 - Design requirements for construction of a dam

Current through Register Vol. 43, No. 28, July 11, 2024
Each dam constructed shall meet or exceed the design
				requirements specified in the table in this regulation. The minimum top of the
				dam elevation shall be the maximum water surface elevation determined by
				routing the design storm specified in the following table, using the
				methodology specified in
				K.A.R.
				5-40-30 through
				K.A.R.
				5-40-33, through the reservoir and the dam's
				spillways, plus the minimum freeboard shown in the following table. The minimum
				floor width of the open-channel spillway shall be the minimum floor width shown
				in the following table.
Dam Hazard Precipitation Minimum Minimum floor
size class for design freeboard width of open-
class storm in feet channel
spillway in feet
1 A 2% chance 1 20
B 0.25 PMP 2
C 0.40 PMP 3
2 A 1% chance 2 30
B 0.25 PMP 2
C 0.40 PMP 3
3 A 1% chance 3 40
B 0.30 PMP 3
C 0.40 PMP 3
4 A 0.25 PMP 3 40
B 0.30 PMP 3
C 0.40 PMP 3
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-23 - Detention storage

Current through Register Vol. 43, No. 28, July 11, 2024
(a) To determine
			 the minimum required detention storage, the applicant shall show that the
			 computed runoff from the detention storm can be stored in the reservoir and
			 discharged through the primary spillway without any flow being discharged
			 through the auxiliary spillway. The elevation of the auxiliary spillway control
			 section shall be set so that the computed runoff from the detention storm
			 specified in the following table and determined from the procedures in K.A.R.
			 5-40-30 through K.A.R. 5-40-33 does not result in discharge through the
			 auxiliary spillway.
Hazard Size Purpose Minimum
class detention
storm
A 1, 2 Flood control 4% chance
A 3 Flood control 4% chance
A 4 Flood control 2% chance
B All Flood control 2% chance
C All Flood control 2% chance
A 1, 2 All uses other than flood control 50% chance
A 3 All uses other than flood control 50% chance
A 4 All uses other than flood control 20% chance
B All All uses other than flood control 20% chance
C All All uses other than flood control 20% chance
Each dam that has flood control as a purpose shall meet the
				detention storm requirements for a flood control structure. A dam that is not
				constructed for flood control purposes and whose auxiliary spillway meets the
				requirements for a service spillway in K.A.R. 5-40-57 shall not be required to
				meet any minimum detention storm requirement in the table in this subsection.
(b) Each dam shall have a
			 primary spillway and an auxiliary spillway, unless a service spillway meeting
			 the requirements of K.A.R. 5-40-57 is provided.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-24 - Dam breach analysis

Current through Register Vol. 43, No. 28, July 11, 2024
A dam breach analysis shall be conducted on each proposed dam
				as specified in this regulation. If a dam breach analysis is required for an
				existing dam, the analysis shall be conducted in the same manner as that
				specified in this regulation for a proposed dam.
(a) To determine the appropriate water
			 surface elevation in the reservoir when the breach begins, the breach analysis
			 shall route the appropriate design duration one percent-chance storm determined
			 by K.A.R. 5-40-31 through the reservoir. The routing shall begin by assuming
			 that the water surface elevation is at the elevation of the lowest uncontrolled
			 spillway inlet, not including any low-flow augmentation works. The antecedent
			 moisture condition (AMC) used to determine the runoff shall be determined
			 according to K.A.R. 5-40-32. The minimum water surface elevation used to begin
			 the breach analysis shall be the greater of the following:
(1) The water surface elevation determined by
			 routing the required design duration one percent-chance storm through the
			 reservoir; or
(2) the elevation of
			 the crest of the auxiliary spillway.
Routing the storm through the reservoir may account for the
				discharge of the primary spillway and any openchannel spillways. If the dam
				does not have an openchannel spillway, the water surface elevation used shall
				be the elevation of the top of the dam or the elevation resulting from using
				PMP as the runoff event, whichever is lower.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-26 - Request to issue or reconsider hazard class determination

Current through Register Vol. 43, No. 28, July 11, 2024
(a)
(1) If an owner or applicant does not agree
			 with the hazard classification determined for a dam, the owner or applicant may
			 file a request for reconsideration of the hazard class determination.
(2) Each request for
			 reconsideration shall be submitted in writing and shall indicate the following:
(A) The owner's or applicant's proposed
			 hazard classification;
(B) the
			 basis of that proposal; and
(C) an
			 explanation of why the owner or applicant believes that the determination of
			 the hazard classification by the chief engineer is incorrect. The request shall
			 also contain documentation and analysis that support the request.
(3) Each request for
			 reconsideration shall be filed with the chief engineer within 15 days after the
			 owner or applicant is served with written notice of the hazard classification
			 by the office of the chief engineer or within any extension of time authorized
			 by the chief engineer in writing.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-30 - Time of concentration

Current through Register Vol. 43, No. 28, July 11, 2024
(a) Except as
			 specified in subsections (b) and (c), the time of concentration (Tc) shall be
			 determined by using one of the methods specified in chapter 15, "travel time,
			 time of concentration and lag," in the natural resources conservation service
			 (NRCS) national engineering handbook, part 630, dated August 1972, which is
			 hereby adopted by reference.
(b)
			 For drainage areas of not more than three square miles, the time of
			 concentration (Tc) may be determined by use of the Kirpich formula, which is as
			 follows:
See Equation at
				http://www.kssos.org/pubs/register%5C2007%5CVol_26_No_18_May_3_2007_p_607-676.pdf
Where
Tc = the time of concentration, in hours
L = the longest distance that water has to travel in the
				drainage basin, in miles
H = the maximum elevation difference in the drainage basin, in
				feet.
(c) In addition to
			 the methods specified in subsections (a) and (b), the applicant may determine
			 Tc based on sound engineering principles and commonly accepted engineering
			 practices if the applicant obtains the prior written consent of the chief
			 engineer.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-32 - Determination of rainfall excess

Current through Register Vol. 43, No. 28, July 11, 2024
(a) Rainfall
			 excess shall be determined by using the natural resource conservation service
			 (NRCS) runoff curve number method.
(b) The antecedent moisture condition (AMC)
			 to be used when determining the curve number for the design storm shall be one
			 of the following:
(1) For zone one, the curve
			 number determined using AMC III;
(2) for zone two, the curve number determined
			 by averaging the AMC II and AMC III curve numbers; or
(3) for zone three, the curve number
			 determined using AMC II.
Zone one, zone two, and zone three shall have the meanings
				specified in K.A.R. 5-40-1 under the definition of a "stream."
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-33 - Hydrographs

Current through Register Vol. 43, No. 28, July 11, 2024
The rainfall excess determined in
				K.A.R.
				5-40-32 shall be used to determine the
				time-discharge relationship of inflow to the reservoir for the detention storm
				and design storm using the techniques described in chapter 16, "hydrographs,"
				in the natural resource conservation service (NRCS) national engineering
				handbook, part 630, dated March 2007, which is hereby adopted by reference.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-40 - Geotechnical investigation of all dams

Current through Register Vol. 43, No. 28, July 11, 2024
(a) Each
			 applicant shall ensure that a sufficient geotechnical investigation is
			 performed on the proposed site for each dam to design the dam in accordance
			 with the regulations of the chief engineer and with sound engineering
			 principles and commonly accepted engineering practices. The materials under the
			 proposed dam, open-channel spillway, and borrow area shall be investigated
			 before design and submission of the application for a permit to construct a
			 dam. If unusual or unexpected foundation conditions are encountered in the
			 investigations required in this regulation, additional geotechnical
			 investigation and soil mechanics testing shall be performed as necessary to
			 design and construct the dam in accordance with the regulations of the chief
			 engineer and with sound engineering principles and commonly accepted
			 engineering practices.
(b) The
			 geotechnical investigation specified in these regulations shall be designed by
			 a licensed professional competent in geotechnical investigation and analysis
			 for dams.
(c) The geotechnical
			 information specified in these regulations shall be included in the engineering
			 design report and submitted with the proposed construction plans. The report
			 shall contain a general description of the geotechnical investigation,
			 including the method used for sampling.
(d) The soils sampled in all of the
			 geotechnical investigations shall be classified by using field classification
			 methods and the uniform soil classification system.
(e) The dam design shall make appropriate
			 accommodations for the geology discovered in the investigation.
(f)
(1) The
			 foundation of the dam shall be investigated to a depth of not less than
			 one-half the height of the dam at the location of the test hole plus five feet.
(2) If unweathered bedrock is
			 encountered before reaching the sampling depth required in paragraph (f)(1),
			 the sampling shall be done to the unweathered bedrock.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-41 - Geotechnical investigation of a low-impact dam

Current through Register Vol. 43, No. 28, July 11, 2024
(a) In addition
			 to meeting the requirements of K.A.R. 5-40-40, each low-impact dam shall have a
			 sufficient number of properly placed test holes to be representative of the
			 geology under the proposed dam embankment, with an average of at least one test
			 hole each 200 feet along the centerline of the dam and at least three test
			 holes.
(b) Except as specified in
			 subsection (d) and K.A.R. 5-40-74, each existing unpermitted, illegal dam shall
			 have the same level of geotechnical investigation as that required for a
			 proposed new dam, except that testing the borrow area shall not be required,
			 before a permit will be issued. In addition, the condition of the following
			 shall be determined:
(1) All conduits passing
			 through the embankment;
(2) the
			 embankment in the vicinity of the conduits; and
(3) the rest of the embankment, including any
			 slides, seeps, saturated areas, sloughs, and other visible anomalies in the
			 embankment.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-42 - Geotechnical investigation of a high-impact dam

Current through Register Vol. 43, No. 28, July 11, 2024
(a) In addition
			 to meeting the requirements of K.A.R. 5-40-40, each proposed high-impact dam
			 shall have at least the following number of geotechnical test holes:
(1) A sufficient number of properly placed
			 test holes to be representative of the geology under the proposed dam
			 embankment, with an average of at least one test hole every 100 feet along and
			 as close to the centerline of the dam as practical and a minimum of three test
			 holes; and
(2) a test hole as
			 close as practical to the anticipated location of the following:
(A) The base of the drop inlet; and
(B) the support of the outlet
			 pipe.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-43 - Cutoff trench

Current through Register Vol. 43, No. 28, July 11, 2024
(a) Each dam
			 shall have a cutoff trench. The cutoff trench shall meet all of the following
			 requirements:
(1) Have side slopes no steeper
			 than one horizontal unit to one vertical unit;
(2) have a bottom width of 10 or more feet as
			 necessary to meet the compaction requirements of K.A.R. 5-40-44;
(3) be constructed to the depth justified in
			 the design report based on the findings in the geotechnical report, unless
			 observations by the inspecting engineer during construction justify a different
			 depth;
(4) be backfilled with the
			 most impervious material available at the site. If no impervious material is
			 available at the site, then this material shall be procured off-site;
(5) be backfilled with material
			 that is contiguous to and homogeneous with the most impervious zone within the
			 dam, if the dam is designed as a zoned fill;
(6) be constructed in lifts that shall not
			 exceed nine inches for each lift; and
(7) be constructed of a material that has
			 been brought to acceptable moisture content.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-44 - Embankment

Current through Register Vol. 43, No. 28, July 11, 2024
(a) The minimum
			 top width of an embankment shall be determined from the following table:
Height of dam (in feet) Minimum top width (in feet)
less than 20 10
20 through 24.9 12
25 through 39.9 14
40 or greater 15
(b) The top of the dam shall be sloped toward
			 the reservoir, unless special measures are taken to adequately control erosion
			 on the downstream side of the dam.
(c) The height of each lift in the embankment
			 and cutoff trench shall be no more than nine inches, unless the dam is designed
			 as a zoned fill. If the dam is designed as a zoned fill, the lifts outside the
			 cutoff trench and most impermeable zone may be larger if geotechnical data is
			 provided that shows that adequate compaction can be achieved using lifts in
			 excess of nine inches.
(d) The
			 material in each low-impact embankment and cutoff trench shall be brought to a
			 moisture content that can be compacted in accordance with this subsection. Each
			 application for a low-impact dam shall contain specifications requiring
			 adequate compaction. The minimum compaction required shall be achieved by one
			 of the following:
(1) Using a sheepsfoot
			 roller until the feet cease to push into the fill material and start to walk
			 across the compacted surface;
(2)
			 using the controlled movement of rubber-tired earth-moving equipment so that
			 every point on the surface of each lift is traversed by not less than one tread
			 track of the equipment; or
(3)
			 using another method that achieves the compaction required by this subsection.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-45 - Allowance for settlement of an earthen dam

Current through Register Vol. 43, No. 28, July 11, 2024
(a) A detailed
			 soil mechanics investigation report shall be submitted as part of the design
			 report for each high-impact dam. An appropriate allowance for settlement shall
			 be made based on the results in the soil mechanics report.
(b) If a detailed soil mechanics
			 investigation report is not submitted for a low-impact dam, at least five
			 percent of the height of the dam shall be allowed for settlement of the
			 embankment.
(c) An allowance for
			 settlement on each dam may be made by steepening the side slopes during
			 construction and adding to the height of the embankment as needed to increase
			 the height of the dam.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-46 - Side slopes of an earthen dam

Current through Register Vol. 43, No. 28, July 11, 2024
(a) The side
			 slopes of each earthen dam shall be designed and constructed to be stable and
			 easily maintained.
(b) A slope
			 stability analysis shall be required on each high-impact dam.
(c) If a slope stability analysis is
			 required, the minimum factor of safety shall be based on the steady-state
			 seepage load condition with the water level at the elevation of the lowest
			 open-channel spillway or other uncontrolled spillway with a trash rack that
			 meets the requirements of K.A.R. 5-40-51, as shown in the following table:
Class size Hazard class Factor of safety
4 A 1.4
3, 4 B 1.5
1, 2, 3, 4 C 1.5
(d) Each dam whose face is subject to
			 prevailing winds shall be given additional protection from erosion caused by
			 wave action, which may include a flatter side slope, the use of riprap, or the
			 use of grass or vegetation adapted to fluctuating water levels. The design of
			 any slope protection for the embankment and the auxiliary spillway or service
			 spillway shall be shown on the plans. If no slope protection is provided,
			 regardless of the orientation of the dam, the design report shall provide
			 justification for not having slope protection.
(e) The steepest allowable design side slope
			 shall be three horizontal units to one vertical unit on the upstream side of
			 the dam, and two and one-half horizontal units to one vertical unit on the
			 downstream slope of the dam.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-50 - Pipes

Current through Register Vol. 43, No. 28, July 11, 2024
(a) Each pipe
			 under or through an embankment shall meet the following requirements:
(1) Be capable of withstanding the external
			 load without buckling, cracking, being damaged, or being deformed. The minimum
			 internal diameter of the pipe shall not be reduced by more than the pipe
			 manufacturer's stated allowable, long-term pipe deflection limit and in no case
			 by more than five percent;
(2) be
			 designed to adequately resist flotation;
(3) be impervious to water, with watertight
			 joints and seams;
(4) except for
			 drawdown pipes, be installed with sufficient slope to provide adequate
			 drainage, with a minimum average slope of one percent after settlement. No pipe
			 shall have an adverse grade through any section of pipe;
(5) if the pipe is installed in conjunction
			 with a riser on a high-impact dam, be placed to insure that the requirements of
			 paragraph (a)(4) are met and that all pipe sections are properly aligned after
			 settlement of the foundation and consolidation of the embankment;
(6) have the discharge end extended a
			 sufficient distance beyond the downstream toe of the dam to avoid erosion to
			 the dam;
(7) be adequately
			 supported at the discharge end to prevent deflection when the pipe is flowing
			 full; and
(8) if the pipe is a
			 primary spillway, be sized to evacuate 95 percent of the detention storage in
			 14 or fewer days.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-51 - Acceptable trash racks for primary spillways

Current through Register Vol. 43, No. 28, July 11, 2024
(a) Except as
			 specified in subsection (c), each new or modified primary spillway permitted on
			 or after the effective date of this regulation shall be equipped with an
			 acceptable trash rack, as specified in subsection (b).
(b) "Acceptable trash rack" shall mean a
			 trash rack designed and constructed to prevent debris from clogging the inlet
			 of the primary spillway or the primary spillway conduit. Each acceptable trash
			 rack shall be constructed of material of sufficient strength to withstand the
			 impact of the material that could strike the inlet.
(c)
(1) Each
			 primary spillway in a dam permitted before the effective date of this
			 regulation shall be equipped with the acceptable trash rack required by the
			 permit and approval of design. If no trash rack was required by the permit and
			 approval of design, no trash rack shall be required unless the primary spillway
			 fails to function properly.
(2) If
			 the applicant demonstrates that there is not sufficient woody vegetation or
			 other debris in the drainage area to justify the installation of an acceptable
			 trash rack, the requirement to have an acceptable trash rack may be waived.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-52 - Stilling basins

Current through Register Vol. 43, No. 28, July 11, 2024
(a) For each new
			 dam, for each primary spillway conduit replacement, and for each existing dam
			 for which the chief engineer determines that it is necessary to protect the
			 integrity of the embankment, each primary spillway conduit with a
			 cross-sectional area in excess of 1.75 square feet shall discharge into one of
			 the following:
(1) A constructed stilling
			 basin below the downstream toe of the dam; or
(2) any other constructed works designed to
			 dissipate energy and prevent erosion.
Kansas Administrative Regulations › Agency 5 - DEPARTMENT OF AGRICULTURE-DIVISION OF WATER RESOURCES › Article 40 - DESIGN OF EARTH DAMS › Section 5-40-53 - Drawdown pipes

Current through Register Vol. 43, No. 28, July 11, 2024
(a) Except as
			 specified in subsection (b), each dam shall be equipped with a drawdown pipe
			 that meets the requirements for a pipe as specified in K.A.R. 5-40-50. A valve
			 or gate shall be installed in the pipe so that the controls are accessible and
			 damage from freezing is prevented. Drawdown pipes may be incorporated into the
			 primary spillway.
(b) The
			 installation of a drawdown pipe shall not be required for a low-impact dam if
			 the chief engineer determines that both of the following criteria are met:
(1) The failure to install a drawdown pipe
			 will not prejudicially and unreasonably affect the public interest and the
			 public safety.
(2) The drawdown
			 pipe is not necessary to administer water rights.