Or. Admin. R. 690-020-0250

Current through Register Vol. 63, No. 6, June 1, 2024

Section 690-020-0250 - Maintenance of Dams

(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.

(3) Records necessary to track the conditions of the Dam should be maintained.

Or. Admin. R. 690-020-0250

WRD 2-2015, f. & cert. ef. 3/17/2015; WRD 3-2020, amend filed 06/29/2020, effective 7/1/2020

Statutory/Other Authority: ORS 536.027, 540.488

Statutes/Other Implemented: ORS 540.455, 540.479, 540.488