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Earthquake Bridge Inspection Guide
Engineering Positions Open
NPDES Stormwater Permit 1200-CA
Stormwater Quality Treatment Engineering Standards for the Stormwater Management Area
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General Conditions for Construction for Marion County
Best Management Practices for Clean Water
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Current office hours at 5155 Silverton Road NE are 8:00 AM to 4:00 PM, Monday - Friday.
Erosion Prevention & Sediment Control (EPSC) Information
Oregon Drainage Law
Permit Information
System Development Charges (SDC's)
Surveyors Office
Right of Way (Public right of way acquisitions information)
Withdrawals from County Road System (Maintenance and county road status removal information)
There are no legalizations in progress at this time.
2005 Rural Transportation System Plan
2013 Rural Transportation System Plan Update
Average Daily Traffic Counts
Bike Route Map
Traffic Impact Analysis Requirements
Transportation Variance Permits