OWNER Central Puget Sound Regional Transit Authority Capital Projects | LOCATION Federal Way, WA | PROJECT TYPE Civil, Structural, Facilities, Design
SCL conducted independent Quality Assurance Oversight services for Central Puget Sound Regional Transit Authority’s Capital Projects in design and construction. SCL audited design deliverables at major milestones in the project Plan (60, 90 100 completion). Project included structures, off ramps, interstate highway, arterial roads, retaining walls, and bridges.
The project provided for improvements of I-5 in south King County, MP 143.25 to MP 144.74 by constructing a direct access ramp from S 317th, the connection from Federal Way Transit Center and Park and Ride Facility into the HOV lanes of I-5. The project would also add HOV lanes and improve positions of I-5 within project limits. The work included clearing and grubbing, grading, drainage, storm sewers, asphalt and concrete pavement removal. Paving with hot mix asphalt and concrete, dowel bar retrofit, grinding, construction of structural earth and reinforced concrete retaining walls, construction of S 317th St. under crossing, widening of bridge 5/506E, erosion control and planting, curb, curb and gutter, permanent signing, landscaping, permanent and temporary illumination, traffic signals, ITS, traffic control, and other related improvements.