# IDAPA 37.03.05.035: Section 035. Plans, Drawings, And Specifications (Rule 35)

> Idaho · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_ID_IDAPA_37_03_05_035

## Section

- **Citation:** IDAPA 37.03.05.035
- **Heading:** Section 035. Plans, Drawings, And Specifications (Rule 35)
- **Jurisdiction:** Idaho
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Idaho Administrative Code / IDAPA 37 (Water Resources, Department of) / Chapter 37.03.05 / Section 035

## Text

The following provisions shall apply in submitting plans, drawings, and specifications. (3-30-23) 01. Submission of Plans, Drawings, and Specification. Any owner who shall desire to construct, o r enlarge, or alter or repair any mine tailings impoundment structure shall submit duplicate copies of plans, drawings , and specifications prepared by an engineer for the proposed work to the Director with required fees. An owner who desires to construct a continuously raised tailings impoundment structure shall submit duplicate copies of plans , drawings, and specifications prepared by an engineer, showing the stages of lift height, by periods of time, and ultimate design height. (3-30-23) 02. Application for and Receipt of Written Approval. Construction of a new mine tailing s impoundment structure or enlargement, or non-emergency alteration or repairs on existing mine tailing s impoundment structures shall not be commenced until the owner has applied and obtained written approval of th e plans, drawings, and specifications covering the work. In emergency situations, the owner shall make the require d alterations or repairs necessary to relieve the emergency, and notify the Director. (3-30-23) 03. Preparation and Submission of Plans. Plans must be prepared on a good grade of tracing linen o r a good quality vellum or mylar. Transparent copies reproducible by standard duplicating processes, if accurate , legible and permanent, will be accepted. Plans may initially be submitted in the form of nonreproducible paper prints . After reviewing the plans, the Director will notify the owner of any required changes. (3-30-23) 04. Scale of Plans and Drawings. Plans and drawings shall be of sufficiently large scale with a n adequate number of views and proper dimensions, so that drawings may be readily interpreted and studied.(3-30-23) 05. Dimensions of Plans. All sheets for a set of plans shall have an outside dimension of twenty-fou r by thirty-six (24 x 36) inches
ll notify the owner of any required changes. (3-30-23) 04. Scale of Plans and Drawings. Plans and drawings shall be of sufficiently large scale with a n adequate number of views and proper dimensions, so that drawings may be readily interpreted and studied.(3-30-23) 05. Dimensions of Plans. All sheets for a set of plans shall have an outside dimension of twenty-fou r by thirty-six (24 x 36) inches. A margin of two (2) inches on the left-hand end and a margin of one-half (1/2) inch o n the other three sides must be provided, making the available work space twenty-three (23) x thirty-three and one-hal f (33 1/2) inches. (3-30-23) 06. Plans. The plans shall include the following: (3-30-23) a. A topographic map of the mine tailings impoundment structure site showing the location of th e proposed mine tailings impoundment structure by section, township and range, and location of spillway or diversio n structures, outlet works, and all borings, test pits, borrow pits; (3-30-23) b. A profile along the mine tailings impoundment structure axis showing the locations, elevations, an d depths of borings or test pits, including logs of bore hole and/or test pits; (3-30-23) c. A maximum cross-section of the mine tailings impoundment structure showing elevation and widt h of crest, slopes of upstream and downstream faces, thickness of any proposed riprap, zoning of the earth embankmen t (if any), location of cutoff and bonding trenches, elevations, size and type of decant systems, valves, operating mechanism, and dimensions of all other essential structural elements such as cutoff walls, filters, embankment zones , etc.; (3-30-23) d. Detailed drawings describing the outlet system, i.e., decant line, barge pump system, sipho n system; (3-30-23) e. If a spillway is used, a curve showing the discharge capacity in cubic feet per second of th e spillway vs. gage height of the storage pool level above the spillway crest up to the maximum high-water level, an d the formula used in making such determinations; (3-30-23) f
(3-30-23) d. Detailed drawings describing the outlet system, i.e., decant line, barge pump system, sipho n system; (3-30-23) e. If a spillway is used, a curve showing the discharge capacity in cubic feet per second of th e spillway vs. gage height of the storage pool level above the spillway crest up to the maximum high-water level, an d the formula used in making such determinations; (3-30-23) f. If a stream diversion is created, a tabulation of the discharge capacity in cubic feet per second o f any diversion works and of the diversion channel vs. flow depth through the diversion works or channel up t o maximum capacity of the system, and the formulas used in making such determinations; (3-30-23) g. Where staged construction will take place and no spillway exists, a curve showing maximum saf e operating level for the tailings as a function of embankment height and the design criteria used to arrive at this; (3-30-23) h. Detailed plans, including cross-sections and profile, of the spillway or diversion works and an y associated channels; (3-30-23) i. Plans for monitoring and/or recovering seepage from the reservoir in those instances where safet y of the impoundment may be affected; (3-30-23) j. An operation plan; (3-30-23) k. An emergency procedure plan for protection of life and property; (3-30-23) l. An abandonment plan that assures the Director to his satisfaction that, upon completion of the mining operation, the site will be in a safe maintenance-free condition. (3-30-23) 07. Specifications. Specifications shall include provisions acceptable to the Director for adequat e observation, inspection and control of the work by a registered professional engineer during the period o f construction. (3-30-23) 08. Provision Included with Plans. The specifications shall provide that the plans and specification s may not be materially changed without prior written consent of the Director. (3-30-23) 09. Provisions Included with Specifications
able to the Director for adequat e observation, inspection and control of the work by a registered professional engineer during the period o f construction. (3-30-23) 08. Provision Included with Plans. The specifications shall provide that the plans and specification s may not be materially changed without prior written consent of the Director. (3-30-23) 09. Provisions Included with Specifications. The specifications shall provide that certain stages o f construction shall not proceed without the approval of the Director. Those stages requiring approval are as follows: (3-30-23) a. After clearing and excavation of foundation and prior to placing any fill material; (3-30-23) b. After installation of the decant conduit and any proposed collars and before placing any backfill material around conduit; (3-30-23) c. After construction is completed (first stage starter dike if staged construction) and before any wate r or mine tailings slurry is stored in the reservoir; (3-30-23) d. Before each successive enlargement of the impoundment structure; (3-30-23) e. After each stage of enlargement of the impoundment structure is completed and before storage i s allowed to exceed the level approved for the previous approved stage; (3-30-23) f. At such other times as determined necessary by the Director. The Director will, within seven (7 ) days after notification by the engineer, inspect and if satisfactory, approve the completed stage of construction . Owners are encouraged to give prior notice to the Department, so that the inspection can be scheduled to preven t delays. (3-30-23) 10. Inspections, Examinations, and Tests. All materials and workmanship may be subject t o inspection, examination and test by the Director at any and all reasonable times during manufacture and/o r construction and at any and all places where such manufacture and/or construction are carried on. (3-30-23) 11. Rejection of Defective Material
inspection can be scheduled to preven t delays. (3-30-23) 10. Inspections, Examinations, and Tests. All materials and workmanship may be subject t o inspection, examination and test by the Director at any and all reasonable times during manufacture and/o r construction and at any and all places where such manufacture and/or construction are carried on. (3-30-23) 11. Rejection of Defective Material. The Director shall have the right to require the owner or engineer to reject defective material and workmanship or require its correction. Rejected workmanship shall be corrected an d rejected material shall be replaced with proper material. (3-30-23) 12. Suspension of Work. The Director may order the engineer to suspend any work that may b e subject to damage by climatic conditions. (3-30-23) 13. Responsibility of Engineer. These provisions shall not relieve the engineer of his responsibility t o assure that construction is accomplished in accordance to approved plans and specifications or to suspend work on hi s own motion. (3-30-23) 14. Detailing Provisions of Specifications. The specifications shall state in sufficient detail, al l provisions necessary to ensure that construction is accomplished in an acceptable manner and provide needed contro l for construction to ensure that a safe structure is constructed. (3-30-23) 15. Required Information. The following information shall be submitted with the plans an d specifications. (3-30-23) 16. Engineer's Report. An engineer’s report giving details necessary for analysis of the structure and appurtenances. Included as a part of the report where applicable shall be the following: (3-30-23) a. Formulas and assumptions used in designs; (3-30-23) b. Hydrologic data used in determining runoff from the drainage areas; (3-30-23) c. Engineering properties of each type of material to be used in the embankment and of the foundation areas; (3-30-23) d
necessary for analysis of the structure and appurtenances. Included as a part of the report where applicable shall be the following: (3-30-23) a. Formulas and assumptions used in designs; (3-30-23) b. Hydrologic data used in determining runoff from the drainage areas; (3-30-23) c. Engineering properties of each type of material to be used in the embankment and of the foundation areas; (3-30-23) d. Stability analysis, including an evaluation of overturning, sliding, upstream and downstream slope s and foundation stability; (3-30-23) e. Geologic description of reservoir area, including evaluation of landslide potential; (3-30-23) f. Chemical analysis of all materials composing the slurry; (3-30-23) g. Earthquake design loads must be evaluated at all sites located east of Range 22 E., Boise Meridian . This area corresponds to Seismic Zone 3 as designated by the Recommended Guidelines of the National Dam Safet y Program. Earthquake analysis may be required at other impoundment structure sites if deemed necessary by th e Director; (3-30-23) h. A seepage analysis of the embankment and reservoir bottom; (3-30-23) i. A hydraulic analysis of the outlet system and spillway, diversion work or diversion channel; (3-30-23) j. Engineering properties and the weathering characteristics of the proposed tailings to be stored i n the impoundment; (3-30-23) k. Other information which would aid in evaluating the safety of the design. (3-30-23) 17. Filing of Additional Information. The Director may require the filing of such additiona l information which in his opinion is necessary to assess safety or waive any requirement herein cited if in his opinion it is unnecessary. (3-30-23) 036. -- 039. (RESERVED)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_ID_IDAPA_37_03_05_035. Check the current official text before relying on it. Not legal advice.