• Report Home
• Evaluation Criteria

Project Evaluation: SR 164, 158th Avenue SE Turn Lanes

Auburn, King County
This project will improve safety by providing a westbound left turn lane and widening lanes and shoulders at the 158th Avenue Southeast intersection. Work included paving, re-striping and construction of drainage ditches and illumination system. Work was done on WSDOT right-of-way, which ran through the Muckleshoot Tribal Reservation.

Design:  Construction Management:  Schedule:  Cost:  Engineer's Estimate: $ 448,409 Contractor's Bid Amount: $ 458,029 Anticipated Final Payment to Contractor: $ 522,200

Construction Summary
The contractor used an adjacent property as a staging area for the project.  After clearing the site, a Tribal representative found artifacts in the staging area; these included flakes, fire-cracked rock and tools. Work was stopped in the area.  Our archaeologist then conducted shovel test probes and found additional artifacts in the staging area and the right-of-way. This led to an extensive site investigation by a consultant, who found numerous additional prehistoric artifacts.  Work on the project was stopped. 

Our contractor had completed all but the northwest quadrant of the project. The balance of the work will included with a future nearby project at minimal cost.

We originally estimated that the work would be completed by the end of May 2005.  Finding the artifacts delayed the work, which was completed by August 31.  Approximately 42 of the 50 days scheduled for the project were used for the work that was completed.  The delay and the majority of the cost overruns are attibuted to the archaeological work. During the design phase, project review for potential historic findings should have been conducted with more care.
  
Contact Information
Contractor: 
Tri State Construction, Bellevue

WSDOT Contact:
Stanley Eng, Project Engineer
(425) 433-2000
engsc@wsdot.wa.gov

back to top