1725 200th St SE
Building C, Suite 200
Bothell, WA 98021
Phone: 425-205-4930
Selected STC Project Portfolio
Click Project Title to View PDF
Pipe Bursting
On Call Work Order Contract with King County, Seattle Washington
Fairwood Interceptor Pipe Burst, Fairwood Washington
B5/B6 Sewer System Replacement, Anchorage Alaska
19th Avenue Water Main Replacement, Anchorage Alaska
Mercer Island Emergency Sewer Repair, King County Washington
Port of Seattle IWS Replacement, Seattle Washington
Auger Boring
Water System Improvement, Whitefish Montana
Horizontal Directional Drilling
Transmission Water Main Replacement, Anacortes Washington
Fairchild AFB Waterline Replacement Project, Fairchild Washington
South Lake Tahoe Utilities A Line Replacement, South Tahoe, California
Minerva Gas Field Horizontal Directional Drill, Melbourne, Australia
Parallel Pipeline River Crossing, Newberg Oregon
Poole Slough Project, Seal Rock Oregon
Bellevue Pump Station Force Main Upgrade, Bellevue Washington
Dakota Creek Crossing Water Main Replacement, Whatcom County Washington
Gambell Water and Sewer Improvements, Anchorage Alaska
Kimball Creek Pump Station, Snoqualamie Ridge Washington
Microtunneling
Carmichael Raw Water Treatment Plant Line, Carmichael California
Willamette River Crossing, Portland Oregon
Eastside Interceptor Section 1, King County Washington
Tanner Creek Stream Diversion, Portland Oregon
Clearview Water Supply Project, Everett Washington
Woods Trunk Sewer Replacement Project, Portland Oregon
Tunnel Boring
Ballard Siphon Replacement Project, Seattle Washington