SR 16 Nalley Valley in Tacoma
In January 2009, WSDOT broke ground on a replacement for the I-5/SR 16 interchange, one of Pierce County's worst traffic bottlenecks. The new Westbound Nalley Valley interchange in Tacoma eliminates the weave, where vehicles from I-5 have just 600 feet to change lanes in order to merge onto westbound SR 16 or exit to Sprague Avenue. The project is scheduled for completion in fall of 2011, after which crews turn their attention to building a new eastbound viaduct.

For project specifics:
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