The Maintenance and Operations (M&O) Surface Drainage Management section ensures that all drainage structures are maintained and in good working condition. This includes:
Catch basins
Culverts
Drainage ditches
Manholes
Drainage Section Responsibilities
Maintenance of stormwater drainage facilities
Managing runoff to prevent flooding, road damage
Ditching to establish or re-establish flow lines
Installation of temporary soil erosion and sediment control devices
Emergency response to flooding
Inventory of drainage facilities
Culverts & Catch Basins
Resetting or replacement to meet WDFW fish passage standards
Replacement of undersized culverts that restrict flow
Annual maintenance for debris removal and cleaning
Compliance with state and federal permitting requirements
Adherence to "fish windows" during maintenance activities
Use of best management practices (BMPs) to maintain fish friendly work areas
