General Contact Number: (530) 621-5567

Department of Transportation

‚ÄčTransportation Planning

The Transportation Planning unit reviews transportation impact of new commercial and residential development through traffic impact studies, maintains the County's Traffic Model and oversees and implements the Countywide Traffic Impact Mitigation Fee Program.


Traffic Impact Study Guidelines

Travel Demand Model

CIP & TIM Fee Major Update

Traffic Impact Fee Program

Missouri Flat MC & FP Phase II


Other Links:


2016 Major CIP & TIM Fee Update

Capital Improvement Program