S.D. Admin. R. 74:02:08:09

Current through Register Vol. 51, page 67, December 16, 2024

Section 74:02:08:09 - Contents of plans and specifications

Minimum plans and specifications submitted to the chief engineer for review must include the following:

(1) A topographic map of the dam site specifying the legal description of the proposed dam and the location of the spillway and outlet works, and all test borings, test pits, and borrow pits. The map shall also show all property contiguous to the dam site and contiguous to the flood zone behind the dam and the owners of the contiguous property;

(2) A profile along the dam axis showing the location, elevations, and depth of borings or test pits, including logs of bore holes or test pits;

(3) A maximum cross-section of the dam showing the elevation and width of the crest; slopes of upstream and downstream faces; thickness of riprap; zoning of earth embankment; location of cutoff and bonding trenches; and elevations, size, and type of outlet conduit, valves, and operating mechanism;

(4) Area-capacity curves of the proposed reservoir;

(5) Detailed drawings showing plans, cross and longitudinal sections of the outlet conduits, valves and controls for operating the outlet, and trash racks;

(6) The discharge capacity in cubic feet per second of the spillway for each foot in water depth above the spillway crest up to the maximum high-water level and the formula used in making the calculations;

(7) Detailed plans of spillway structures, cross-section of the channel heading to and from the spillway, spillway profile, and procedures for operation of the spillway structure;

(8) Specifications including provisions during the period of construction for supervision by an engineer; and

(9) An EPP for a proposed category 1 dam.

Reconstruction, alteration, or repair that requires plans and specifications, or breaching of an existing dam may not begin until plans and specifications have been approved by the chief engineer. Construction of a new dam pursuant to this chapter may not begin until plans and specifications have been approved by the chief engineer and a water permit to construct the dam has been approved by the water management board pursuant to SDCL 46-2A-7 or 46-2A-11.

S.D. Admin. R. 74:02:08:09

13 SDR 49, effective 10/27/1986; 13 SDR 129, 13 SDR 141, effective 7/1/1987; 13 SDR 197, effective 7/2/1987; 14 SDR 67, effective 11/8/1987.

General Authority: SDCL 46-2-5, 46-7-3.

Law Implemented: SDCL 46-1-15, 46-5-8 to 46-5-11, 46-5-47, 46-7-3, 46-7-5.