I-405, Totem Lake/NE 128th St, HOV Direct Access/Freeway Station, WSDOT

OWNER Central Puget Sound Regional Transit Authority Capital Projects | LOCATION Totem Lake, WA | PROJECT TYPE Civil, Structural, Facilities, Design

SCL conducted independent Quality Assurance Oversight for Central Puget Sound Regional Transit Authority's Capital Projects in design and construction. Project included facilities, retaining walls, interstate highways, arterial roads, and, bridges.

Project Background

This project provides for direct access ramps, exclusively for transit, HOV, and carpool use, connecting the 128th St. Bridge over I-405. The work also included a freeway station for passenger access to transit, City of Kirkland roadway improvements, ramp and mainline freeway improvements on I-405. Construction of the new ramp involved widening the inside pavement each direction on I-405, constructing MSE, solder pile, and reinforced concrete walls, paving, channelization, signage, and other work as necessary, all in accordance with the plans, specifications, and the Standard Provisions.

Scope of Work