We widened more than two miles of State Route 9 from a two-lane road to a four-lane divided highway. The road was widened between SR 524 (212th Street Southeast) north of Bothell to 176th Street Southeast in Clearview.
We added a raised center median to separate traffic, built 11 designated U-turn locations and added turn lanes at the 180th Street Southeast intersection.
SR 9 is an important corridor for both commercial vehicles and commuters. Traffic volumes had exceeded the capacity of the previous two-lane highway.
A raised center median reduces the risk of collisions by eliminating left turns across oncoming traffic and minimizing the chance that a driver will cross the center and into oncoming traffic.
Current safety standards
The newly widened section meets current safety standards for intersections, guardrails, pavement markings and the elimination of roadside hazards.
We improved capacity and traffic flow by adding two lanes and limiting entry and exit points to reduce congestion that occurred when traffic backed up behind drivers waiting to make a turn.
| Protects Environment
We constructed new highway drainage systems and storm water ponds to provide proper run-off and treatment for water from the highway.
Partnerships & Cooperation
We held several community open houses prior to construction to obtain feedback about the features of the new highway.
|Financial Data for PIN 100900F
||Amount ($ in thousands)
|2003 Gas Tax (Nickel Funding)
|2005 Gas Tax (TPA)
|Pre-Existing Funds (PEF)
Northwest Region communications
15700 Dayton Avenue North
Seattle, WA 98133
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