Regional Maintenance Office
5720 Capital Boulevard
Tumwater, WA 98504
Phone: 360.357.2612 
Troy Cowan, Regional Maintenance Engineer

Local Maintenance Offices

Area 1 - Thurston and west Pierce Counties
11211 41st Ave SW
Tacoma, WA 98499
Phone: 253.983.7550 
Tom Gibbs, Maintenance Superintendent

Area 2 - Kitsap, Mason, and southeast Jefferson Counties
8293 Spring Creek Rd SE
Port Orchard, WA 98367
Phone:360.874.3050
Duke Stryker, Maintenance Superintendent 

Area 3 - Clallam and Jefferson (all but southeast) Counties
1707 South C Street
Port Angeles, WA 98362
Phone: 360.565.0680
Steve Russell, Maintenance Superintendent 

Area 4 - Grays Harbor County
4801 Olympic Highway
Aberdeen, WA 98520
Phone: 360.538.8530
Randy Moody, Maintenance Superintendent