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I-405 - NB SR 167 Ramp to NB I-405 - Major Drainage Repair - Complete September 2013

Project Status - Complete
This project will repair drainage beneath the SR 167/I-405 interchange
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Old pipe clogged with debris
The old pipe was clogged and filled with debris.

Crews installing new drain pipe.
Crews installed a new drain pipe beneath the ramp from northbound SR 167 to northbound I-405.


This project was completed in September 2013

We replaced an old, clogged roadway runoff (stormwater) pipe under the northbound SR 167 ramp to northbound I-405 in Renton.

The old pipe was made of corrugated metal, which had been in place for nearly 30 years, and was falling apart. Water was seeping under the roadway causing material to settle. The pipe reached the end of its useful life and was replaced it to preserve the roadway above.

The new pipe is made of heavy duty rubberized plastic. Crews installed it beneath the shoulder of the ramp.  Doing so gives crews easier access for future cleaning and maintenance work.

How You Benefit
Cross GlyphImproves Safety
The new pipe prevents water from leaking beneath the roadway. Leaks cause material below the roadway to settle. Settling causes cracking in the roadway above, which is a hazard to drivers.
Leaf Glyph Protects Environment
The new pipe allows for better drainage of stormwater from the roadway.
Dollar Sign Glyph Economic Incentive
The new pipe reduces annual maintenance costs, saving tax payer dollars.

Partnerships & Cooperation
We awarded the contract to Active Construction in February 2013. Work was completed in September 2013.


Financial Data for PIN 140503D
Funding Source Amount ($ in thousands)
2003 Gas Tax (Nickel Funding) $0
2005 Gas Tax (TPA) $0
Pre-Existing Funds (PEF) $835
CWA $0
Total $835

Contact Us
Broch Bender 

Project engineer
Aleta Borschowa

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