OAR 690-020-0028: Preliminary Plans and Specifications for Construction of New Dams or to Increase Dam Height

(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. (3) The preliminary plans and specifications must be submitted by an Engineer, or a certified engineering geologist that is registered in the State of Oregon and is also a Certified Water Rights Examiner.