OAR 690-020-0160
Removal

(1)

Dam owner(s) seeking Removal of any Dam with a High or Significant Hazard Rating must notify the Department.

(2)

Dam owner(s) shall provide the Department with a Removal plan for evaluation prior to removing the Dam. Plans must be submitted a minimum of 60 days in advance of Removal to allow reasonable time to evaluate the Removal plan, unless the Department agrees to a different timeframe.

(3)

A Removal plan must include:

(a)

Descriptions and assumptions for the Removal of the Dam;

(b)

A description of the means for Removal of the Dam to prevent future impoundment and a method of draining the reservoir in a controlled manner prior to the start of the Removal;

(c)

A schedule listing the major events and corresponding time frame that will occur during the Removal;

(d)

A plan for disposal and stabilization of Dam material; and

(e)

A drawing showing the planned Removal location, breach dimensions including side slopes, and lowest elevation of the breach. The Removal plan must show that there will sufficient material removed and left at slopes that will allow no breach flood by erosion of remaining materials.

(4)

The Department may evaluate the Removal plan to ensure the plan includes appropriate safety precautions to protect life, property, and public infrastructure from temporary inundation in the area below the Dam during Dam Removal.

(5)

The Department may require changes to the Removal plan or require that the work performed under the plan be supervised by an Engineer as necessary to protect life, property, or public infrastructure from temporary inundation during Dam Removal. If the Department requires changes to the Removal plan or requires that work be supervised by an Engineer, the Department shall notify the Dam owner and provide an opportunity to meet with the Department.

(6)

Upon completion of the Dam Removal, the owner shall notify the Department. The Department shall make a final inspection, if appropriate, and remove it from Department Dam safety oversight.

Source: Rule 690-020-0160 — Removal, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=690-020-0160.

690‑020‑0000
Purpose and Applicability 690‑020‑0022
Definitions 690‑020‑0024
General Department Authorities and Intergovernmental Coordination 690‑020‑0026
Fees 690‑020‑0028
Preliminary Plans and Specifications for Construction of New Dams or to Increase Dam Height 690‑020‑0035
Minimum Engineering Requirements for Final Design of New Dams or to Increase Dam Height 690‑020‑0036
Design Requirements for New Dams or to Increase Dam Height: Site Suitability and Geotechnical Evaluation 690‑020‑0037
Design Requirements for New Dams or to Increase Dam Height: Hydrology and Inflow Design Flood 690‑020‑0038
Design Requirements for New Dams or to Increase Dam Height: Embankment Dam Structures 690‑020‑0041
Design Requirements for New Dams or to Increase Dam Height: Concrete Dam Structures 690‑020‑0042
Minimum Design Requirements for New Dams or to Increase Dam Height: Spillways 690‑020‑0043
Design Requirements for New Dams or to Increase Dam Height: Penetrating Conduit(s) and Control of Flow through Conduits 690‑020‑0044
Design Requirements for New Dams or to Increase Dam Height: Instrumentation for Monitoring 690‑020‑0047
Design Requirements for New Dams or to Increase Dam Height: Geosynthetics 690‑020‑0048
Exceptions to Standard Design Requirements 690‑020‑0055
Design Requirements for New Dams or to Increase Dam Height: Design Drawings 690‑020‑0060
Design Requirements for New Dams or to Increase Dam Height: Construction Specifications 690‑020‑0065
Plan Requirements for New Dams or to Increase Dam Height: Construction Administration 690‑020‑0068
Plan Requirements for New Dams or to Increase Dam Height: Operations and Maintenance Plan 690‑020‑0070
New Dams or to Increase Dam Height: Submittals and Notifications by the Engineer of Record 690‑020‑0080
New Dams, or to Increase Dam Height, Written Approval by State Engineer 690‑020‑0100
Hazard Rating of Dams 690‑020‑0120
Dam Breach Inundation Analysis 690‑020‑0140
Modification of Dams 690‑020‑0160
Removal 690‑020‑0180
Requirement of Owners to Provide Contact and Transfer of Title Information 690‑020‑0250
Maintenance of Dams 690‑020‑0260
Inspection of Dams 690‑020‑0310
Requirement to Address Maintenance Actions Need for High or Significant Hazard Dams 690‑020‑0340
Potentially Unsafe or Unsafe Conditions 690‑020‑0400
Emergency Action Plans (EAP) 690‑020‑0420
Immediate Action to Prevent Dam Failure 690‑020‑0460
Proposed Final Order, Request for Hearing, Contested Case Process 690‑020‑0600
Civil Penalty Assessment for Dam Safety
Last Updated

Jun. 8, 2021

Rule 690-020-0160’s source at or​.us