I-5 - NE 175th St. to NE 205th St. - NB Auxiliary Lanes - Complete June 2006

Quarterly Project Report Update for Quarter Ending September 2004

Project Title & Location
I-5/ NE 175th St to NE 205th St - Shoreline

Project Description
This project will widen NB I-5 to provide an auxiliary lane between NB on ramp at NE 175th St to NB off ramp at NE 205th St. Existing 11 foot general purpose (GP) lanes will be re-striped to 12 feet. Widening the NB on ramp at NE 175th St will provide extra GP storage at this metered location. The purpose is to improve operations and safety on I-5 by adding a NB auxiliary lane for merging and exiting traffic.

Contractor/Consultant
Project not yet advertised

Recent Progress

Design is complete.  Project went to advertisement on October 4, 2004.

Design Construction Impacts
A noise wall on the west side was added to the project and the design has been completed.  Funding from non nickel sources has been secured for the added wall.

Environmental Impacts / Compliance
Pond detention of storm water runoff was re-evaluated and found to provide concurrence with current requirements.  Emergent planting will be added to the detention ponds to increase water quality treatment.

Impacts to Traffic
The project will support efficient operation of the general purpose and HOV lanes by controlling/directing traffic demands.  Additional roadway capacity should ease congestion on this heavily traveled route.  Traffic impacts during construction are being evaluated.  On I-5, we expect lane shifts, rolling slowdowns and lane closures.

Project Milestones Scheduled Attained Milestone Outlook
Begin Prelim Engineering(nickel portion) May 04 May 04
Environmental Complete May 02 Done
Right of Way Certified NA NA  
Advertisement Oct 04 Oct. 4, 04

Project is on Ad.

Open to Traffic Fall 06  
Project Cost Summary: Dollars in
millions
Percent
of Total

Planned vs. Actual Expenditures
(Total Project Cost)
Project Expenditure Chart

Preliminary Engineering $2.2 21.4%
Right-of-Way
Construction $8.1 78.6%
Funded Project Costs $10.3 100.0%

Nickel funds included in above costs

$7.4 71.8%

2005 Transportation Partnership Account

  For more information, go to www.wsdot.wa.gov/projects

John E. Johnson, WSDOT Project Engineer (206) 440-4552 or
E-mail:  JohnJoh@wsdot.wa.gov