OAR 141-085-0530
Exemptions for Certain Activities and Structures

These exemptions apply in all waters of this state except State Scenic Waterways.


State Forest Management Practices. Non-federal forest management practices subject to Oregon’s Forest Practices Act conducted in any non-navigable water of this state are exempt. When these forestlands are being converted to other uses the exemption does not apply to the activities associated with the new use. Forest management practices must be directly connected with a forest management practice conducted in accordance with ORS 527.610 (Short title) through 527.770 (Good faith compliance with best management practices not violation of water quality standards), 527.990 (Criminal penalties) and 527.992 (Civil penalties), such as:




Road construction and maintenance;


Harvesting of forest tree species; and


Disposal of slash.


Fill for Construction, Operation and Maintenance of Certain Dams and Water Diversion Structures. Filling the beds of the waters of this state for the purpose of constructing, operating and maintaining dams or other diversions for which permits or certificates have been or will be issued under ORS Chapters 537 or 539 and for which preliminary permits or licenses have been or will be issued under ORS 543.010 (Definitions for ORS 543.010 to 543.610) through 543.610 (Acquisition of project by state or municipality) is exempt.


Navigational Servitude. Activities conducted by or on the behalf of any agency of the federal government acting in the capacity of navigational servitude in connection with a federally authorized navigation channel are exempt. Disposal of dredged material within the ordinary high water line of the same waterway is also exempt.


Maintenance or Reconstruction of Water Control Structures. Fill or removal or both for maintenance or reconstruction of water control structures such as culverts, dikes, dams, levees, groins, riprap, tidegates, drainage ditches, irrigation ditches, and tile drain systems are exempt if:


The project meets the definition of maintenance under OAR 141-085-0510 (Definitions)(57); or


The project meets the definition of reconstruction under OAR 141-085-0510 (Definitions)(87);


The structure was serviceable within the past five years; and


The maintenance or reconstruction would not significantly adversely affect wetlands or other waters of this state to a greater extent than the wetlands or waters of this state were affected as a result of the original construction of those structures.


Maintenance and Emergency Reconstruction of Roads and Transportation Structures. Fill or removal for maintenance, including emergency reconstruction of recently damaged parts, of currently serviceable roads or transportation structures, such as groins and riprap protecting roads, causeways, bridge abutments or approaches, and boat ramps is exempt.


Prospecting and Non-Motorized Activities within Designated Essential Indigenous Anadromous Salmonid Habitat (ESH). A permit is not required for prospecting or other non-motorized activities resulting in removal-fill of less than one cubic yard of material at any one individual site and, cumulatively, not more than five cubic yards of material within a particular stream in a single year. Prospecting or other non-motorized activities may be conducted only within the bed or wet perimeter of the waterway and must not occur at any site where fish eggs are present.


Fish Passage and Fish Screening Structures in Essential Indigenous Anadromous Salmonid Habitat (ESH). Less than 50 cubic yards of removal-fill for construction or maintenance of fish passage and fish screening structures that are constructed, operated or maintained under ORS 498.306 (Screening or by-pass devices for water diversions), 498.316 (Exemption from screening or by-pass devices), 498.326 (Department guidelines for screening and by-pass projects) or 509.600 (Destroying, injuring or taking fish near fishway) to 509.645 (Filing protest with commission). This exemption includes removal of material that inhibits fish passage or prevents fish screens from functioning properly.


Change in Point of Diversion for Surface Water. Fill or removal for a change in the point of diversion to withdraw surface water for beneficial use is exempt if the change in the point of diversion is:


Necessitated by a change in the location of the surface water; and


Authorized by the Oregon Water Resources Department.


Removal of Large Wood. Removal of large woody debris is exempt if:


It poses a direct and demonstrable danger to livestock, human life or real property; or


It poses a risk of harm to transportation facilities including, but not limited to, culverts, bridges and roads located near or within the beds or banks of any waters of this state; or


It prevents or obstructs navigation within the beds or banks of any waters of this state ; and


The removal is no more than the amount necessary to reduce or eliminate the threat.

Source: Rule 141-085-0530 — Exemptions for Certain Activities and Structures, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=141-085-0530.

Removal-Fill Jurisdiction by Type of Water
Removal-Fill Jurisdiction by Volume of Material
Measuring and Calculating Volume of Removal and Fill
Exemptions for Certain Activities and Structures
Exemptions for Certain Voluntary Habitat Restoration Activities
Exemptions Specific to Agricultural Activities
Types of Authorizations
Application Requirements for Individual Permits
Individual Removal-Fill Permit Application Review Process
Public Review Process for Individual Removal - Fill Permit Applications
Department Determinations and Considerations in Evaluating Individual Permit Applications
Permit Appeals
Discovery in Contested Cases
Permit Conditions, Permit Expiration Dates and Permit Transfer
Renewal and Extension of Individual Removal-Fill Permits
Permit Requirements and Interagency Coordination for Department of Environmental Quality Approved Remedial Action, Corrections Facilities, Solid Waste Land Fills and Energy Facilities
Expedited Process for Industrial or Traded Sector Sites
Emergency Authorizations
Compensatory Mitigation (CM)
Functions and Values Assessment
Eligibility Requirements for CM
Mitigation Accounting
Special Requirement for CM
Administrative Protection of CM Sites
Financial Security for CM Sites
Requirements for CM Plans
Monitoring Requirements for CWM
Mitigation for Temporary Impacts
Mitigation Banking Purpose, Applicability and Policies
Process for Establishing Mitigation Banks
Establishment of Mitigation Credits
Release, Use and Sale of Mitigation Credits
Authorization for Mitigation Banks
In-Lieu Fee Mitigation
Payments to and Expenditures from the Oregon Removal-Fill Mitigation Fund
Advance Mitigation
Advance Aquatic Resource Plans
Complaints and Investigations
Enforcement Actions and Procedures
Revoking or Suspending an Authorization
Civil Penalties
Last Updated

Jun. 8, 2021

Rule 141-085-0530’s source at or​.us