reglab/statecodes huggingface dataset:
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0000 - Purpose and Applicability

Current through Register Vol. 63, No. 7, July 1, 2024
(1)
			 The purpose of these rules is to implement ORS 540.443 through 540.491 and ORS
			 540.995, as well as applicable sections of ORS
			 536.050 and ORS
			 537.400,
			 through actions that are intended to ensure the safety of the Dams, insofar as
			 Dams may affect possible loss of life or property, and damage to public
			 infrastructure. Prioritization of Dam safety actions and requirements are based
			 on the Hazard Rating of the Dam. These rules outline processes to:
(a) Review design and specifications to
			 Construct a Dam;
(b) Review plans
			 for Removal of Significant Hazard and High Hazard Dams;
(c) Conduct routine inspections and notify
			 Dam owners of outcomes;
(d)
			 Cooperate with Dam owners over Dam safety issues;
(e) Prescribe Maintenance Actions, corrective
			 actions, or any other actions necessary to protect life, property, or public
			 infrastructure consistent with the Department's authorities and with law, and
			 to pursue formal enforcement as necessary;
(f) Communicate, coordinate, and collaborate
			 with Persons, Tribes, or other government entities regarding Dam safety;
			 and
(g) Plan for and respond to
			 emergencies as necessary and as consistent with law.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0024 - General Department Authorities and Intergovernmental Coordination

Current through Register Vol. 63, No. 7, July 1, 2024
In addition to any other powers of the Department, in carrying
				out its duties, functions, and powers, under these rules and ORS 540.443 through 540.491 and 540.995, the Department may:
(1) Enter into contracts, memorandums of
			 understanding and intergovernmental agreements for the inspection, evaluation
			 or study of Dams, or the response to Dam Failure or potential Dam
			 Failure.
(2) Accept moneys from any
			 public or private source for the administration and enforcement of ORS 540.443 through 540.491 and these Division 20 rules for enhancing the safety of Dams or
			 the protection of life, property, or public infrastructure in areas below
			 Dams.
(3) Coordinate with federal,
			 Tribal, state, local, and private entities to enhance the safety of Dams or the
			 protection of life, property, or public infrastructure in areas below
			 Dams.
(4) Waive or reduce fees for
			 Dams inspected by another state agency under a memorandum of understanding with
			 the Department.
(5) Aid in the
			 inspection of a Dam and provide advice and assistance to prevent, mitigate, or
			 respond to a potential or actual Dam Failure if there is a potential or actual
			 risk of Dam Failure at a Dam regulated under a federal Dam safety
			 program.
(6) Accept the reports of
			 consulting Engineers, engineering geologists or other specialists employed by
			 the Dam owner.
(7) Employ
			 consulting Engineers, engineering geologists, or other specialists to make
			 special examinations and inspections, and to prepare reports for the Department
			 if the Department concludes that existing reports are insufficient. The cost of
			 such special examinations, inspections, and reports shall be paid by the
			 Department, or upon mutual agreement, may be divided between the Department and
			 the Dam owner.
Statutory/Other Authority: ORS
				  536.027,
				  540.488
Statutes/Other Implemented: ORS 540.446, 540.464,
				  540.488
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0026 - Fees

Current through Register Vol. 63, No. 7, July 1, 2024
(1) The Department
			 may charge a fee for examination of the site, plans and specifications,
			 features, and other supporting information regarding construction of a new Dam
			 or construction to modify Dam Height. The fee, as provided in ORS 540.449, must
			 be paid prior to final design approval and may not exceed the lesser of the
			 costs of providing the examination or the amounts provided in ORS
			 540.449(3).
(2) Dam owners subject
			 to the Department's laws governing Dam safety shall submit to the Department an
			 annual fee based upon the Dam's Hazard Rating as provided in ORS
			 536.050(2)
			 to support the Dam Safety Program and administration expenses.
(a) Dam owners who fail to pay the annual fee
			 on or before six months after the billing date may be required to pay a late
			 fee as provided in ORS
			 536.050(2).
(b) If a Dam owner fails to pay the annual
			 fee or late fee charged by the Department, the Department may, after giving the
			 Dam owner notice by certified mail, place a lien on the real property where the
			 Dam is located for the fees owed by the Dam owner.
(c) Multiple Dams directly adjacent to each
			 other and connected together and separated only by Embankments or other manmade
			 materials will be considered as one Dam for the purpose of determining annual
			 fees.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0028 - Preliminary Plans and Specifications for Construction of New Dams or to Increase Dam Height

Current through Register Vol. 63, No. 7, July 1, 2024
(1) If a Dam
			 requires a Water right, preliminary plans and specifications must be submitted
			 to the Department at the time an application to appropriate Water is submitted
			 to the Department pursuant to ORS 537. Preliminary plans and specifications are
			 recommended for Dams that do not require a Water right.
(2) Preliminary plans and specifications must
			 include the following at a minimum:
(a) A
			 contour map of the reservoir site showing the proposed location of the Dam. The
			 map should be no smaller than 11" X 17". The map must show the proposed
			 location of the Spillway(s) and the Conduit inlet and outlet;
(b) Written description of the proposed Dam
			 location both as Latitude/Longitude and Township/Range/Section;
(c) A cross section of the proposed Dam at
			 the maximum section indicating the proposed Height;
(d) The proposed storage of the reservoir in
			 Acre-feet; and
(e) A brief
			 description of geologic conditions of the proposed site. Any geologic features
			 that could impact the safety of the Dam should be clearly described.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0035 - Minimum Engineering Requirements for Final Design of New Dams or to Increase Dam Height

Current through Register Vol. 63, No. 7, July 1, 2024
(1) Final
			 documents must be submitted by the Engineer of Record prior to construction to
			 build a new Dam or increase Dam Height as required in OAR 690-020-0080. Design
			 reports may be completed by Engineers other than the Engineer of Record. If
			 multiple reports are submitted, each must be stamped by the Engineer who
			 prepared the report.
(2) Final
			 documents shall include:
(a) A plan for
			 construction administration as provided in OAR 690-020-0065;
(b) An operations and maintenance plan if
			 required by OAR 690-020-0068;
(c)
			 An Emergency Action Plan for Dams rated High Hazard as provided in OAR
			 690-020-0400;
(d) Final design
			 drawings as provided in OAR 690-020-0055; and
(e) Final design reports.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0036 - Design Requirements for New Dams or to Increase Dam Height: Site Suitability and Geotechnical Evaluation

Current through Register Vol. 63, No. 7, July 1, 2024
The design to build a new Dam or to increase Dam Height shall
				characterize the soil and rock at and around the Dam site and shall include the
				following elements:
(1) A description
			 of the general and local geology and geomorphology at and around the proposed
			 Dam and reservoir site;
(a) Field
			 investigation by a geotechnical Engineer or engineering geologist or both is
			 required for Dams rated High Hazard. For Dams rated Significant Hazard, field
			 investigation by a geotechnical engineer or engineering geologist or both is
			 required where landslides, faults, dispersive soils, or liquefiable soils could
			 reasonably be expected near or at the Dam site. All such features shall be
			 shown on a map of the Dam site and be described as necessary for design of the
			 Dam;
(b) For Dams on located on
			 rock, a drawing must also contain mapping of discontinuities relevant to the
			 safety of the Dam and include evaluation of whether grouting is
			 required;
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0037 - Design Requirements for New Dams or to Increase Dam Height: Hydrology and Inflow Design Flood

Current through Register Vol. 63, No. 7, July 1, 2024
The design to build a new Dam or to increase Dam Height shall
				characterize flow into and through the reservoir and the Dam and shall include
				the following elements:
(1) A
			 topographic map delineating the drainage area contributing to the Dam, with the
			 drainage area size labeled in square miles and showing the specific location of
			 the proposed Dam;
(2) For Dams on
			 stream channels, the name of the stream where the Dam is located, the name of
			 the principal watershed, and a determination of average annual inflow into
			 reservoir and potential to fill the reservoir;
(3) The Inflow Design Flood that is the basis
			 of hydraulic design for the Dam shall be determined based on the Hazard Rating
			 of the Dam as follows:
(a) The Inflow Design
			 Flood for a High Hazard Dam is the Probable Maximum Flood (PMF) unless the
			 Engineer of Record proposes to determine an Inflow Design Flood based on a
			 quantitative analysis of risk to people;
(b) The minimum Inflow Design Flood for a
			 Significant Hazard Dam is the 0.2 percent Annual Exceedance Probability
			 Flow;
(c) The minimum Inflow Design
			 Flood for a Low Hazard Dam is a 1.0 percent Annual Exceedance Probability
			 Flow;
(d) The Inflow Design Flood
			 for a lagoon or off channel reservoir is the maximum capacity of inflow pumps
			 or ditches plus the maximum local storm precipitation over the lagoon;
			 and
(e) For watersheds under 30
			 square miles, the Engineer of Record may consider just the 24-hour storm to
			 help determine the PMF, while for larger basins the Engineer of Record shall
			 utilize at least a 72-hour storm for calculating the PMF for a general
			 storm;
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0038 - Design Requirements for New Dams or to Increase Dam Height: Embankment Dam Structures

Current through Register Vol. 63, No. 7, July 1, 2024
Designs to build a new Dam or to increase Dam Height for
				Embankment (soil or rock) Dams shall include the following elements:
(1) A determination of Embankment stability
			 and stable Embankment slope angles as follows:
(a) Embankment Dams shall be designed to have
			 stable slopes during construction, and under all conditions of reservoir
			 operation;
(b) Standard slopes of
			 3:1 upstream and 2:1 downstream may be used at the discretion of the Engineer
			 of Record for Low and Significant Hazard Dams as long as low strength materials
			 are not used in the Embankment and conditions leading to elevated pore Water
			 pressures are not present;
(c) For
			 High Hazard Dams, an analysis of static and seismic slope stability, and of
			 deformation. The State Engineer may require static and seismic slope stability
			 analysis for Significant Hazard Dams. At a minimum, seismic analysis shall be
			 based on full reservoir under steady state seepage conditions. Factors of
			 safety shall be evaluated by slope stability analyses using appropriate
			 strength parameters based on laboratory or in situ testing. For materials that
			 can be reasonably tested either on site or in a laboratory, soil strength
			 values may not be based on assumptions and must be made on strength testing of
			 the appropriate soil or rock units;
(d) High Hazard Dams shall be designed for
			 the maximum credible earthquake. If the State Engineer requires seismic
			 analysis of a Significant Hazard Dam, deformation analysis shall be designed
			 for the 0.2 percent Annual Exceedance Probability earthquake; and
(e) Abrupt changes in depth of compressible
			 Foundation material shall be identified and where present, the design shall
			 prevent significant differential settlement;
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0041 - Design Requirements for New Dams or to Increase Dam Height: Concrete Dam Structures

Current through Register Vol. 63, No. 7, July 1, 2024
Designs to build a new Dam or to increase Dam Height for
				concrete mass Dams must be prepared by a structural Engineer and a geotechnical
				Engineer or engineering geologist. This rule does not apply to concrete
				flashboard Dams. Designs for all other concrete Dams shall include the
				following elements as applicable:
(1)
			 Concrete Dams shall be specified as gravity, arch, arch-gravity, or buttress.
			 Gravity Dams can be of conventional mass concrete or roller compacted
			 concrete;
(2) Dams shall be
			 designed to be stable during construction and under all conditions of reservoir
			 operation;
(a) Headwater and tailwater
			 elevations pertinent to the design shall be described with respect to both
			 static and dynamic loading;
(b)
			 Uplift pressure distributions assumed for design shall be provided;
			 and
(c) When Foundation drains are
			 used to reduce uplift, the assumed drain efficiency shall be indicated and
			 permanent access shall be provided at the project to inspect and maintain the
			 drains;
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0043 - Design Requirements for New Dams or to Increase Dam Height: Penetrating Conduit(s) and Control of Flow through Conduits

Current through Register Vol. 63, No. 7, July 1, 2024
New Dams on stream channels must have a low level Conduit. All
				other new Dams and Dams with increases to Dam Height must have a low level
				Conduit or other means to safely drain the reservoir. The Conduit and related
				control structures must be designed to meet the following criteria:
(1) Ability to lower the reservoir. The
			 minimum diameter of the Conduit should be determined through analysis of the
			 time required to drain the Dam at average annual inflow;
(a) The Conduits for High Hazard Dams shall
			 be capable of releasing the amount of Water which could be stored in the top
			 five feet of the reservoir in five days;
(b) The Conduits for Significant and Low
			 Hazard Dams must be able to release the amount of Water which could be stored
			 in the top five feet of the reservoir in ten days;
(c) All Conduits must be of sufficient size
			 to allow passage of inflows as needed;
(d) In no case shall Conduits be smaller than
			 eight inches in diameter;
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0044 - Design Requirements for New Dams or to Increase Dam Height: Instrumentation for Monitoring

Current through Register Vol. 63, No. 7, July 1, 2024
Designs must include methods for determining if the Dam is
				operating properly based on the Hazard Rating of the Dam, and include:
(1) A plan to share monitoring data with the
			 Department;
(2) Staff gage near
			 controls for the Conduit or where they can be easily seen by the Dam owner or
			 operator. The staff gage shall be clearly marked in feet and tenths of feet,
			 and extend to within one foot of the Crest. Markings and numbers on the gage
			 rod shall be of sufficient size to be easily readable from the Crest;
(3) Multiple and easily accessible outlets of
			 all Toe Drains. Toe Drains shall be designed to discharge into locations where
			 flows can be evaluated and monitored. Multiple discharge points are required in
			 order to isolate seepage to various sections of the Dam and Foundation.
			 Discharge points must be located where routine Dam maintenance is not likely to
			 damage the drains;
(a) For High Hazard Dams,
			 drains must have a measuring weir or other device, and a basin for settling
			 drainage Water so that internal erosion can be identified;
(b) Where drainage galleries are provided for
			 concrete Dams, seepage measuring devices should be provided and accessible for
			 making the necessary readings;
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0047 - Design Requirements for New Dams or to Increase Dam Height: Geosynthetics

Current through Register Vol. 63, No. 7, July 1, 2024
Geosynthetics shall not be used as the sole element employed to
				perform a Dam safety function. Redundant design features are required whenever
				geosynthetics are used for Dam safety functions.
Statutory/Other Authority: ORS
				  536.027,
				  540.488
Statutes/Other Implemented: ORS 540.449,
				  540.488
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0048 - Exceptions to Standard Design Requirements

Current through Register Vol. 63, No. 7, July 1, 2024
Exceptions to design standards may only be obtained with
				written approval from the State Engineer. Where the Engineer of Record requests
				design exceptions, the request must be in writing, be affixed with the Engineer
				of Record professional stamp, and include a report describing why design
				standards are inapplicable to the safety of the Dam.
Statutory/Other Authority: ORS
				  536.027,
				  540.488
Statutes/Other Implemented: ORS 540.449,
				  540.488
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0055 - Design Requirements for New Dams or to Increase Dam Height: Design Drawings

Current through Register Vol. 63, No. 7, July 1, 2024
The Engineer of Record shall submit applicable drawings when
				the Engineer believes the design is ready for review and approval by the State
				Engineer.
(1) Drawings must accurately
			 portray the work to be accomplished and be of sufficient detail to clearly
			 define all features of the project. After all changes required by the State
			 Engineer are made, final design drawings must be neatly and accurately drawn to
			 a scale sufficiently large for the drawings to be readily
			 interpreted.
(2) Drawings must be
			 uncluttered and easy to understand for determination of design compliance by
			 the contractor, the Engineer of Record, and the State Engineer.
(3) Drawings must be no larger than 24" X
			 36". Other acceptable sizes for drawings are 17" X 22" and 22" X 34". All
			 drawings must have a graphic scale bar so that scale can be determined after
			 enlargement or reduction. Each sheet shall be numbered sequentially with the
			 first sheet being sheet number one along with the total number of sheets; e.g.,
			 1 of 6.
(4) Drawings shall include
			 the following information:
(a) An official Dam
			 name, which must not have already been used for a Dam as indicated in the
			 Oregon Dam Safety Database. This unique name must be affixed on each
			 drawing;
(b) The first drawing must
			 include a location map with the drainage basin, the Dam and reservoir, streams
			 within the drainage area, and the location of the nearest access highway. This
			 drawing must include legal location of the Dam including Section, Township and
			 Range, and the location of the survey reference point with latitude, longitude,
			 elevation, and datum elevation in NAVD1988;
(c) A contour map of the reservoir site
			 showing the legal location of the Dam with a contour interval no greater than
			 five feet. A plan of the Dam should be superimposed on this map. If scale
			 permits, this drawing should show the location of the Spillway(s), Conduit
			 inlet and outlet, and the location, distance and direction to a government land
			 corner or other permanent survey marker;
(d) An area capacity curve showing the total
			 capacity to the Crest, with the Spillway invert elevation identified. Surface
			 area and storage capacity curves must be in acres and Acre-feet,
			 respectively;
(e) A profile of the
			 Dam site at the center of the Dam;
(f) A cross section of the Dam at maximum
			 section;
(g) Plan view(s) of Dam at
			 maximum section, and other sections as needed;
(h) Cross section(s) of Dam, including the
			 maximum section with the official Dam Height;
(i) Spillway details, Spillway approach
			 control discharge, and energy dissipation;
(j) Low level Conduit details, including
			 diameter, material, encasement; and
(k) Slide Gate or Valve details including the
			 trash rack, control stem, pedestal and wheel, or other control details, and air
			 vent.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0065 - Plan Requirements for New Dams or to Increase Dam Height: Construction Administration

Current through Register Vol. 63, No. 7, July 1, 2024
The Engineer of Record shall submit plans for administering the
				construction of the Dam to the State Engineer for approval. Construction plans
				must include the following:
(1) A
			 provision stating that the Engineer of Record or an employee working for the
			 Engineer of Record shall be on-site as needed for instructions to the
			 contractor, approval of initial excavation, acceptance of materials, and
			 general project administration;
(2)
			 A provision stating that the Dam owner shall cease construction activity if the
			 Engineer of Record is no longer retained or for any reason cannot complete
			 necessary construction administration activities. Construction may resume when
			 a new Engineer of Record is employed, the State Engineer has been notified of
			 the new Engineer of Record, and both Engineers have discussed the
			 project;
(3) A provision stating
			 that the Engineer of Record will observe the Dam during construction as needed
			 to determine if construction is consistent with approved design and
			 construction documents. This provision shall also include a description of how
			 the Engineer of Record will determine if construction work in progress fails to
			 conform to the approved plans and specifications, and that such nonconforming
			 work will be corrected;
(4) A
			 provision stating that the Engineer of Record shall confirm Foundation design
			 assumptions once surface materials have been stripped and the Cutoff Trench
			 excavated. Changes in actual Foundation conditions from assumptions made in the
			 initial site evaluation shall be communicated to the State Engineer;
(5) A provision in which the Engineer of
			 Record shall maintain a record of construction that shall include:
(a) Logs of construction inspections whenever
			 such inspections are made by the Engineer of Record or the Engineer of Record's
			 employee;
(b) All test results
			 pertaining to construction;
(c)
			 Photographs; and
(d) Construction
			 problems and remedies.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0068 - Plan Requirements for New Dams or to Increase Dam Height: Operations and Maintenance Plan

Current through Register Vol. 63, No. 7, July 1, 2024
(1) The Engineer of
			 Record shall include an operations and maintenance plan with the submittals for
			 building a new Dam or increasing Dam Height for:
(a) Any Dam rated Significant or High Hazard;
			 and
(b) Any Low Hazard Dam with:
(A) A Gate or flashboard as part of the
			 Spillway; or
(B) A Valve on a
			 Conduit that is not on the upstream side of the Dam.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0070 - New Dams or to Increase Dam Height: Submittals and Notifications by the Engineer of Record

Current through Register Vol. 63, No. 7, July 1, 2024
(1) The Engineer
			 of Record must include an inundation analysis that complies with OAR
			 690-020-0120  prior to submitting the design report, plans and specifications
			 and other documents, so that the Department can determine the Hazard Rating of
			 the Dam.
(2) All final designs,
			 drawings and specifications submitted to the State Engineer for approval must
			 be prepared and stamped by an Engineer. The first page of the drawings, the
			 specifications, and the construction administration plan must be stamped by the
			 Engineer of Record. All submitted materials must be addressed directly to the
			 State Engineer and labeled as a Dam safety submission.
(3) Final drawings shall be submitted on full
			 size paper. The design reports and specifications must be submitted as packaged
			 8.5" x 11" bound documents, with maps folded within.
(4) For High Hazard Dams, the final Emergency
			 Action Plan and any additional inundation analysis required for the EAP as
			 described in OAR 690-020-0400  must be submitted by the Dam owner, or the
			 Engineer of Record on behalf of the Dam owner, prior to commencing
			 construction.
(5) A schedule of
			 construction shall be provided to the State Engineer prior to initiating
			 construction of any Significant or High Hazard Dam.
(6) The Engineer of Record shall notify the
			 State Engineer to allow for Department inspection of the excavation prior to
			 completion of the Cutoff Trench and all stripping of Foundation and
			 Embankments. The required notice to the State Engineer is as follows:
(a) 48-hours for a Low Hazard Dam;
(b) 120-hours for a Significant Hazard Dam;
			 and
(c) 240-hours or the time
			 specified in the approval, whichever is longer, for High Hazard Dams.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0080 - New Dams, or to Increase Dam Height, Written Approval by State Engineer

Current through Register Vol. 63, No. 7, July 1, 2024
(1) No person shall
			 build a new Dam or increase Dam Height unless the State Engineer has reviewed
			 all necessary reports, drawings, plans and other information as submitted by
			 the Engineer of Record and has approved those documents as indicated in written
			 communication with the Engineer of Record.
(2) Prior to commencing construction
			 activity, the Engineer of Record shall verify that all necessary documents
			 related to the final design as identified in OAR 690-020-0035  are approved as
			 indicated by the State Engineer's stamp on those documents.
(3) The State Engineer's approval of design
			 plans and specifications shall be valid only for five years from the date of
			 approval. Upon request, written requests for time extensions may be granted in
			 writing by the State Engineer.
(4)
			 No newly constructed Dam or Dam that has had Height modified may store Water
			 until final written acceptance of a satisfactory project completion report has
			 been submitted to and accepted by the Department.
(5) The Department shall notify the Engineer
			 of Record and Dam owner in writing when the final project completion report has
			 been received and accepted by the Department.
Statutory/Other Authority: ORS
				  536.027,
				  540.488
Statutes/Other Implemented: ORS 540.449,
				  540.488
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0100 - Hazard Rating of Dams

Current through Register Vol. 63, No. 7, July 1, 2024
(1) The
			 Department shall assign all Dams a Hazard Rating of High, Significant, or
			 Low.
(2) A High Hazard Rating will
			 be based on the Dam breach inundation analysis as described in OAR 690-020-0120  using the following criteria to determine expected loss of life:
(a) An inundation depth of flowing Water of
			 at least two feet over the finished floors of dwellings, other frequently
			 occupied buildings, or road surfaces where a vehicle is likely to be present is
			 likely to result in loss of life. The Department may also consider Water
			 velocity in its determination of inundation depth establishing a High Hazard
			 Rating;
(b) An incremental increase
			 of depth of flowing Water of one foot where recreational or other frequent use
			 occurs downstream is likely to result in loss of life. The Department will also
			 use Water velocity in its determination of inundation depth establishing a High
			 Hazard Rating.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0120 - Dam Breach Inundation Analysis

Current through Register Vol. 63, No. 7, July 1, 2024
(1)
			 A Dam breach inundation analysis will be conducted as specified in this section
			 to determine or revise the Hazard Rating of a Dam.
(2) Any simplified and conservative hydraulic
			 model may be used for the Dam breach inundation analysis to show that a Dam
			 should be rated Low Hazard. The State Engineer may determine if the model was
			 used appropriately and conservatively.
(3) An accepted and hydraulically consistent
			 computational model must be used to conduct the inundation analysis for
			 Significant and High Hazard Dams.
(4) A report summarizing the model
			 information and results must be stamped by the Engineer. The summary report
			 shall contain sufficient information to reproduce the model and shall include
			 at a minimum the following information:
(a)
			 The specific proprietary model name or method used for the analysis;
(b) Details regarding the model
			 geometry;
(c) The specific mode of
			 failure and any assumptions made in the selection of the mode of
			 failure;
(d) A list of Dam breach
			 parameters and any assumptions made in the selection of the breach parameters.
			 The breach parameters must be based on Dam material and thickness and any other
			 factors that would influence the time it would take for the Dam to breach from
			 internal erosion, overtopping, or displacement;
(e) A list of all boundary and initial
			 conditions and any assumptions in the selection of these conditions. For High
			 and Significant Hazard Dams, the analysis must be conducted with reservoir at
			 full pool and inflow equal to the 0.2% Annual Exceedance Probability Flood
			 flow;
(f) A map indicating the
			 inundation boundary, areas inundated by a depth greater than two feet, and all
			 frequently occupied structures that fall within or are immediately adjacent to
			 the inundation boundary;
(g) The
			 breach flow as calculated by the model immediately downstream of the Dam. If an
			 empirical formula was used as the basis for determining breach flow, the
			 formula and all inputs must be clearly stated; and
(h) A sensitivity analysis evaluating the
			 variability in model inputs may be required when the Dam breach inundation
			 analysis results indicate the Hazard Rating is on the border between two
			 ratings.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0140 - Modification of Dams

Current through Register Vol. 63, No. 7, July 1, 2024
(1) No person
			 shall make Modifications to a Dam unless the State Engineer has reviewed all
			 required documents as described in this section and has approved those
			 documents as indicated in written communication with the Engineer of Record or
			 Dam owner.
(2) The following Dam
			 Modifications require State Engineer approval of plans:
(a) Changes to or near the Spillway that may
			 affect Spillway capacity or ability to pass flows safely;
(b) Placing, replacing, or relining any
			 Conduit within the Dam;
(c) Removal
			 or alteration of the Conduit control structure;
(d) Installation of a new Valve on the
			 downstream side of the low level Conduit;
(e) Correction of damage where that damage
			 has impacted the safe functioning of the Dam;
(f) Any activity where 10 percent or more of
			 the fill material in the Dam is disturbed; or
(g) Any other change to the Dam that results
			 in a Modification as defined in OAR 690-020-0022(28).
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0160 - Removal

Current through Register Vol. 63, No. 7, July 1, 2024
(1) Dam owner(s)
			 seeking Removal of any Dam with a High or Significant Hazard Rating must notify
			 the Department.
(2) Dam owner(s)
			 shall provide the Department with a Removal plan for evaluation prior to
			 removing the Dam. Plans must be submitted a minimum of 60 days in advance of
			 Removal to allow reasonable time to evaluate the Removal plan, unless the
			 Department agrees to a different timeframe.
(3) A Removal plan must include:
(a) Descriptions and assumptions for the
			 Removal of the Dam;
(b) A
			 description of the means for Removal of the Dam to prevent future impoundment
			 and a method of draining the reservoir in a controlled manner prior to the
			 start of the Removal;
(c) A
			 schedule listing the major events and corresponding time frame that will occur
			 during the Removal;
(d) A plan for
			 disposal and stabilization of Dam material; and
(e) A drawing showing the planned Removal
			 location, breach dimensions including side slopes, and lowest elevation of the
			 breach. The Removal plan must show that there will sufficient material removed
			 and left at slopes that will allow no breach flood by erosion of remaining
			 materials.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0180 - Requirement of Owners to Provide Contact and Transfer of Title Information

Current through Register Vol. 63, No. 7, July 1, 2024
(1) A Dam owner
			 shall:
(a) Provide the Department with
			 contact information for:
(A) The Dam
			 owner;
(B) The operator of the Dam,
			 if other than the owner; and
(C)
			 The individual in immediate charge of the Dam.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0250 - Maintenance of Dams

Current through Register Vol. 63, No. 7, July 1, 2024
(1) The Dam
			 owner shall review and evaluate conditions of the Dam as necessary to keep the
			 Dam in good repair and properly maintained, and address any detected conditions
			 that may pose a risk of Dam Failure.
(2) Proper maintenance includes, but is not
			 limited to:
(a) Removing brush and trees from
			 the Dam;
(b) Control of burrowing
			 animals, especially nutria near the Dam or reservoir, including filling deep
			 burrows;
(c) Restoration of areas
			 of surface or wave erosion, and taking measures to prevent future
			 erosion;
(d) Adding or moving fill
			 to restore Crest Height and width;
(e) Clearance of soil, rock, vegetation and
			 debris from the Spillway;
(f)
			 Proper cycling and lubrication of Valves and Gates at least once a year, unless
			 otherwise specified in a maintenance and operations plan approved by the
			 Department;
(g) Patching, sealing,
			 or replacing areas of cracked concrete on the Dam;
(h) Removing debris, rock, or earth from the
			 inlet and outlet of penetrating Conduits and drains;
(i) Repair or replacement of worn or damaged
			 parts of Gates or Valves;
(j)
			 Ensuring access to the Dam is sufficient for inspection, repair and emergency
			 actions, and that unauthorized access is controlled;
(k) Securing operating equipment such as
			 Valve controls and Spillway controls;
(l) Evaluation of the Conduit and taking
			 necessary actions to ensure the Conduit is not compromised, including patching
			 pipes with minor corrosion; and
(m)
			 Addressing other conditions that might affect the safety of the Dam, including
			 Maintenance Actions identified by the Department in an inspection
			 document.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0260 - Inspection of Dams

Current through Register Vol. 63, No. 7, July 1, 2024
(1) The
			 Department, or representatives of the Department, may inspect a Dam and the
			 site, plans and specifications, features and other supporting information
			 regarding the construction, maintenance and operation of a Dam.
(2) The Department will maintain a Dam
			 inspection schedule based on the Hazard Rating of the Dam:
(a) High Hazard Dams are scheduled for
			 inspection annually,
(b)
			 Significant Hazard Dams are scheduled for inspection every three years,
			 and
(c) Low Hazard Dams are
			 scheduled for inspection every six years.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0310 - Requirement to Address Maintenance Actions Need for High or Significant Hazard Dams

Current through Register Vol. 63, No. 7, July 1, 2024
(1) If, as a result
			 of an inspection of a Dam that is rated High or Significant Hazard, the
			 Department concludes that Maintenance Actions are needed, the Department shall
			 use the process contained in this section as outlined below.
(2) Upon inspection of a Dam that is rated
			 High or Significant Hazard, the Department shall provide specific written
			 notice in the inspection document, describing the observed condition of the Dam
			 and informing the Dam owner of needed Maintenance Actions. The notice in the
			 inspection document shall inform the Dam owner of the opportunity to meet with
			 the Department concerning the information provided in the inspection document.
(a) Upon request of the Dam owner, the
			 Department may provide more specific information regarding the inspection and
			 the maintenance needs of the Dam.
(b) The Department may evaluate whether
			 Maintenance Actions were completed during the next scheduled inspection of the
			 Dam or sooner, pursuant to OAR 690-020-0260(3).
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0340 - Potentially Unsafe or Unsafe Conditions

Current through Register Vol. 63, No. 7, July 1, 2024
(1) The following conditions may result in
			 the Department concluding that a Dam is Potentially Unsafe:
(a) Embankment materials highly vulnerable to
			 internal erosion;
(b) Highly
			 variable and increasing rates of seepage that may lead to internal
			 erosion;
(c) Seismic analysis
			 determines significant Crest loss with little Freeboard remaining;
(d) For Dams in high seismic zones, a layer
			 of liquefiable material in the Dam or its Foundation;
(e) Evidence of prior large rapidly moving
			 landslides identified above the Dam, increasing the risk of Dam Failure from
			 floods and earthquakes;
(f)
			 Spillways are unable to pass the Inflow Design Flood as stated in OAR
			 690-020-0037  or Probable Maximum Flood;
(g) Issues on the Spillway invert that could
			 lead to rapid loss of Spillway integrity during a flood; or
(h) Any other condition that meets the
			 definition of Potentially Unsafe.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0400 - Emergency Action Plans (EAP)

Current through Register Vol. 63, No. 7, July 1, 2024
(1)
			 An owner of a High Hazard Dam shall develop an Emergency Action Plan (EAP)
			 consistent with this section. The EAP is to assist the Dam owner and local
			 emergency management personnel to ensure human safety in the event of a
			 potential or actual Dam Failure.
(2) For new Dams or to increase the Dam
			 Height of High Hazard Dams, the EAP is required to be submitted as part of the
			 plans and specifications in OAR 690-020-0035  and OAR 690-020-0080(1), prior to
			 commencing new Dam construction.
(3) Owners of Dams which have been
			 reclassified to a High Hazard Rating will be required to develop and submit an
			 EAP within one year of being notified of the reclassification by the
			 Department.
(4) An EAP shall
			 contain, at a minimum, the following key elements:
(a) Means for emergency condition
			 detection;
(b) Means for emergency
			 level determination;
(c)
			 Identification of, and information necessary for, notification and
			 communication to be made at each level of emergency condition, including, but
			 not limited to, contact information required in OAR 690-020-0180(1);
(d) Description of actions to prevent a Dam
			 Failure incident or to help reduce the effects of a Dam Failure and facilitate
			 response to an emergency;
(e) A map
			 of Dam Failure inundation zones developed using a Dam breach inundation
			 analysis for varying conditions as specified by the Department, including, but
			 not limited to, dry weather conditions and high flood conditions. The
			 Department may require one inundation map if the dry weather and high flood
			 flows are not substantially different. The inundation mapping must include
			 cross sections at locations of concern, and a description of expected depth and
			 velocity of maximum breach flows at each cross section; and
(f) Procedures for termination of the
			 emergency.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0420 - Immediate Action to Prevent Dam Failure

Current through Register Vol. 63, No. 7, July 1, 2024
(1) If an actual or potential Dam Failure
			 creates an imminent risk to life, property, or public infrastructure and an
			 Emergency Action Plan exists for that Dam, a Dam owner shall immediately
			 implement the actions specified in the plan.
(2) If no EAP exists, and an actual or
			 potential Dam Failure creates an imminent risk to life, property, or public
			 infrastructure, the Dam owner shall immediately notify by telephone or other
			 method that ensures immediate notification:
(a) The local emergency services agency for
			 the county where the Dam is located, via 9-1-1 call, if the dam has a
			 Significant Hazard Rating;
(b) The
			 Department; and
(c) To the extent
			 practicable, Persons in areas where the potential for Dam Failure creates a
			 risk to life, property, or public infrastructure.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0460 - Proposed Final Order, Request for Hearing, Contested Case Process

Current through Register Vol. 63, No. 7, July 1, 2024
(1) Proposed Final
			 Order, Notice of Assessment of Civil Penalty. A proposed final order or a
			 notice of assessment of civil penalty must be consistent with the provisions of
			 ORS
			 183.415,
			 shall include notification of the right to a contested case hearing pursuant to
			 ORS 183, and shall include any applicable or required element otherwise
			 specified in Dam safety rules governing proposed final orders. A proposed final
			 order or a notice of assessment of civil penalty must be served personally or
			 by registered or certified mail.
(2) Request for Hearing. A Dam owner that
			 receives a proposed final order or a notice of assessment of civil penalty has
			 30 calendar days from the date of service of the proposed final order in which
			 to file a written request for hearing. The request for hearing must be filed
			 either in person or by mail addressed to the Department's office in Salem,
			 Oregon. The request for hearing may not be considered timely filed unless it is
			 received in the Department consistent with this subsection. The request for
			 hearing must include a written response specifying the reasons for disagreement
			 with the proposed final order.
(3)
			 Contested Case Procedure. Contested case hearings resolving requests for
			 hearing to proposed final orders issued by the Department under these rules
			 shall be heard by administrative law judges from the Office of Administrative
			 Hearings. Hearings shall be conducted as provided in ORS 183 and the Attorney
			 General's Uniform and Model Rules of Procedure under the Administrative
			 Procedures Act in OAR 137-003-501 to 0700 except:
(a) Only a Dam owner or the Dam owner's
			 authorized representative may request a contested case hearing and be
			 considered a party in any contested case;
(b) For expedited contested case hearings
			 regarding proposed final orders addressing Unsafe conditions, discovery methods
			 as provided in OAR
			 137-003-0566  shall not be allowed because the availability of other forms of discovery would
			 unduly delay proceedings to address conditions that address a near-term risk of
			 threat to life, property, or public infrastructure. Notwithstanding, a party
			 may request public documents pursuant to a request for public records made to
			 the Department as described in OAR Chapter 690, Division 3; and
(c) Immediate review under OAR
			 137-003-0640  is to the Director only.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 20 - DAM SAFETY › Section 690-020-0600 - Civil Penalty Assessment for Dam Safety

Current through Register Vol. 63, No. 7, July 1, 2024
(1) The Department may assess civil penalties
			 for the following violations:
(a)
			 Constructing a Dam without prior written approval from the Department of the
			 final Dam design, construction documents, and operation documents as described
			 in OAR 690-020-0080(1)  and 0140(1);
(b) Impoundment of Water behind a Dam before
			 final documentation has been submitted and accepted by the Department as
			 provided in OAR 690-020-0080(4)  and 0150(6);
(c) Removal of a High or Significant Hazard
			 Dam prior to providing a Removal plan, as required in OAR
			 690-020-0160;
(d) Failure to file
			 an Emergency Action Plan with the Department, the Office of Emergency
			 Management, and the local emergency services agency for the county where the
			 Dam is located, as provided in OAR 690-020-0400; and
(e) Failure to complete needed Maintenance
			 Actions on a High or Significant Hazard Dam, as identified in a prior
			 inspection document sent from the Department to the Dam owner, as described in
			 OAR 690-020-0310.
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 22 - EMERGENCY WATER PROVISIONS - KLAMATH COUNTY › Section 690-022-0020 - Purpose and Statutory Authority

Current through Register Vol. 63, No. 7, July 1, 2024
(1) The purpose of these rules is to
			 implement ORS 536.750(1)(c),
			 which authorizes the Commission, pursuant to a gubernatorial declaration that a
			 severe, continuing drought exists, to grant a temporary preference to water
			 rights for human consumption or stock watering use over other water uses
			 regardless of priority date.
(2)
			 These rules, pursuant to the Governor's Executive Order no. 14-01, dated
			 February 13, 2014, are effective upon filing, and shall remain effective until
			 December 31, 2014. During the effective period of these rules and a drought
			 declaration under ORS
			 536.740 in Klamath County, the
			 Commission grants a preference in Klamath County of use for water rights for
			 human consumption or stock watering as provided in this rule. The temporary
			 preference of use shall only apply to Klamath County and shall remain in effect
			 only during the effective time period of the Governor's drought declaration in
			 Klamath County while these rules are in effect.
(3) These rules are repealed on December 31,
			 2014.
Stat. Auth.: ORS
				  536.025;
				  536.027;
				  536.750
Stats. Implemented: ORS
				  536.750
Oregon Administrative Rules › Chapter 690 - WATER RESOURCES DEPARTMENT › Division 22 - EMERGENCY WATER PROVISIONS - KLAMATH COUNTY › Section 690-022-0025 - Definitions

Current through Register Vol. 63, No. 7, July 1, 2024
Unless the context requires otherwise, the words and phrases
				used in division 22 have the following meaning:
(1) "Commission" means the Oregon Water
			 Resources Commission.
(2)
			 "Department" means the Oregon Water Resources Department.
(3) "Human Consumption" means the use of
			 water for the purposes of drinking, cooking, and sanitation.
(4) "Stock Watering" means the use of water
			 for consumption by domesticated animals and wild animals held in captivity as
			 pets or for profit.
Stat. Auth.: ORS
				  536.025;
				  536.027;
				  536.750
Stats. Implemented: ORS
				  536.750