Success Stories

Tacoma Narrows Bridge


The new suspension bridge is being built parallel to and south of the existing bridge, providing two general-purpose lanes and a high occupancy vehicle lane for eastbound traffic. The new bridge will include a separate path for bicycles and pedestrians. It is also designed to accommodate a second deck in the future. The existing bridge will be reconfigured to provide two general-purpose lanes and a high occupancy vehicle lane for westbound traffic only. The existing bridgework also includes seismic improvements. In addition to the bridge works, the project will construct 3.4 miles of SR 16 from the Jackson Avenue interchange in Tacoma to a new interchange at 24th and 36th Streets.

ss-Tacoma Narrows Project


ATSER is tasked with preparing a Quality Assurance Procedure for Construction (QAPC) that spells out the roles and responsibilities of all parties for all aspects of construction quality. The QAPC provides the procedural basis for tracking material and workmanship quality by both WSDOT and the design-build team. Complementing the QAPC, ATSER is implementing a customized version of its flagship web-based quality management system: Assure-ITTM. This system provides a universal, consistent backbone for the capture, reporting, and analysis of all relevant quality data from either the testing laboratories or directly from the field. Handheld computers, pre-programmed with test forms and inspection checklists, will provide the electronic link between the field and the central database. Success in the implementation of Assure-IT has resulted from the close cooperation between WSDOT and Tacoma Narrows Constructors, a design-build joint venture.