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I-5 - Pavement - University District Seattle - Complete July 2013

Project Status - Complete

The project area was from Northgate (117th Street) to just south of E. Roanoke Street.

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cracked concrete before repair
Tennis ball shows old and worn out concrete before grinding.

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After grinding, the concrete is pothole and rut free.


The project was completed in July 2013

I-5 through King County is nearly 50 years old but was only designed to last 30-40 years. More than 250,000 vehicles, of all types, use I-5 each day. These factors combined with Northwest weather have contributed to concrete that is cracked, rutted, and in need of repair.

The following work took place:

  • Crews replaced 32 broken concrete panels.
  • All four lanes on southbound I-5 between Ravenna and the north end of the Ship Canal bridge were ground smooth by diamond grinders
  • Grinding also happened on two of four lanes between the south end of the Ship Canal bridge (E. Hamlin Street) and just south of Roanoke St. (E. Newton Street).
  • We restriped southbound I-5 between Northgate and Roanoke St. and northbound I-5 across the Ship Canal Bridge.

This project ensures that I-5 will last longer and need fewer emergency repairs until funding can be secured for future improvements.

How You Benefit
Cross GlyphImproves Safety
Replacing cracked concrete panels and grinding out potholes and wheel ruts makes for a smoother safer ride for drivers for years to come. Restriping allows for better visibility and further ensuring driver safety.
Car GlyphRelieves Congestion
Extending the life of I-5 reduces the need for emergency repairs, which are costly to taxpayers and can cause unwanted congestion during rush hour.

Partnerships & Cooperation


For funding information:

Contact Us
Broch Bender, WSDOT Communications

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