OAR 141-093-0235: Maintenance Drainage - Authorized Activities

Maintenance of Drainage. The annual removal of up to one hundred cubic yards of material below OHW or HMT for jurisdictional waterways for maintaining existing drainage to protect agricultural land and the placement of up to one hundred cubic yards of material in converted wetlands as a result of the project, when upland disposal is not practicable. Placement of material in converted wetlands must not result in creation of upland.