King County Road Services - Frequently-asked questions

To find information on current projects open for bidding, please contact the Road Services Division's Engineering Section.

Make one call to 1-800-424-5555 to locate underground utilities before you excavate. Gas, telephone, power, water, cable or other utilities are located and marked with spray paint.

Learn more about locating underground utilities.

The Mitigation Payment System requires developers to pay a fee for the anticipated increase in traffic resulting from the land development.

Learn more about the Mitigation Payment System.

Please contact the King County Property Services Division at 206-296-7456.

Please contact the King County Property Services Division for a permit at 206-296-7456.

Please call the Department of Development & Environmental Services at 206-296-6640.

Call the Department of Development and Environmental Services (DDES) at 206-296-6640 for information about plats, short plats and land subdivisions.

For information on potential construction projects scheduled for your street, please contact the Road Services Division's Capital Improvement Program with the street name and nearby cross streets.

Several maintenance problems may occur within the road right-of-way such as pot holes, narrow shoulder width or erosion, deep ditches, brush growing out of control (herbicide spraying), road deterioration, graffiti removal, ice and snow, poor sight distance, and illegal dumping in the right-of-way.

For any unincorporated area 24 hours a day, seven days a week call 206-296-8100 or toll-free at 1-800-KC-ROADS or (1-800-527-6237). For Skykomish call 206-677-2219. For Vashon-Maury Island call 206-463-9744.

The Transportation Needs Report (TNR) identifies roads needing improvement, community plans, public input, traffic safety and traffic forecasting. For general information call 206-296-6593. To find out about scheduled public meetings call 206-296-6510. To find out about roads under construction call 206-296-6575.

A road vacation occurs when road right-of-way is no longer needed for road purposes and the county releases its interest on the land. Call 206-296-6522 for more information.

For information on King County work sites and work zones, please contact the Road Services Division's Traffic Engineering Section.

Concurrency means that transportation facilities must be available to carry the traffic of a proposed development at County level of service standards, or else the proposed development cannot be approved. If standards are not met at the time you apply for development ("concurrent" with your application), the County can approve development only if financial commitments for improvements are made that will achieve the standards no later than 6 years after the development is approved. These commitments may be made by the County in its Capital Improvement Program, or by agreement between the County and the developer.

For more information about transportation concurrency management, please visit the Transportation Concurrency Management Program frequently-asked questions.