Nebraska Administrative Code
Topic - NATURAL RESOURCES, DEPARTMENT OF
Title 458 - NEBRASKA DEPARTMENT OF NATURAL RESOURCES RULES FOR SAFETY OF DAMS AND RESERVOIRS
Chapter 5 - REQUIREMENTS FOR DAMS CONSTRUCTED PRIOR TO SEPTEMBER 4, 2005, AND NOT PREVIOUSLY APPROVED BY THE DEPARTMENT
Section 458-5-003 - Plans
Current through September 17, 2024
All plans and specifications shall be prepared by an engineer, assisted by qualified engineering geologists, geotechnical engineers, geologists and other specialists as necessary. Plans and specifications shall be as detailed as they would be for submission to contractors bidding on work. Plans shall include:
003.01 A topographic map of the reservoir area as determined by on-site or photogrammetric surveys with 2 foot contour intervals or less.
003.02 A table showing the incremental and cumulative reservoir surface area and reservoir storage at 2-foot elevation intervals and at the crest elevation of the drawdown, the principal and auxiliary spillways, other outlets and the top of dam elevation.
003.03 A map showing the outside limits of the reservoir water line at maximum storage elevation and at normal storage elevation, the dam location, the government subdivisions in which the dam and reservoir are located including the quarter section, section, township, range, and county; the location and name of any and all streams which are the source of water or on which the dam is located and, if applicable, the location of any pump or diversion facility used to provide water to the reservoir.
003.04 The height of the dam from the downstream toe of the dam to the maximum storage elevation.
003.05 The cross sections listed below
All elevations referred to in the cross sections must refer to the North American Vertical Datum of 1988 or an assumed benchmark.
003.06 Elevations, dimensions, materials, and maximum capacities of all spillways.
003.07 If there are multiple owners or there are easements appurtenant to the land where the dam and reservoir are located, a plan of survey showing the boundary line of each ownership and easement. The plan of survey shall include labels to indicate separate ownerships or easements. This drawing must agree with the information provided in the application described in Chapter 5.002.02 of these rules.
003.08 A statement, certified by an engineer, as to the hazard classification of the dam and whether it is subject to the Safety of Dams and Reservoirs Act.
