EXTENT GRAY
Replace the Alaskan Way Viaduct, Seattle
The viaduct is aging, deteriorating and could be
closed by another major earthquake. The state
share of the money provides funds to replace the
viaduct with a similar structure. Additional funds
will be needed to build the tunnel. Safety improvements
will decrease collisions by 14 percent.
Construction begins: 2009 Completion: 2017
Cost: $3.7 to $4.4 billion
The gas tax provides $2 billion to the toatal cost.
GRAY B
Replace the SR 520 Evergreen Point
Floating Bridge, Lake Washington

The bridge is nearing the end of its design life,
and could be damaged or closed by severe wind storms
or an earthquake. New design will decrease
collisions by 13 percent.
Construction begins: 2009 Completion: 2019
Cost: $1.7 to 2.9 billion
The gas tax provides $500 million of the total cost.
GRAY
I-5 Federal Way Triangle
Rapid population growth has overwhelmed
traffic at the I-5/SR 18 interchange,
making it increasingly difficult for drivers
to get to SR 161. Direct ramps will make it
faster and safer for drivers to travel between
and to I-5, SR 18 and SR 161;
and reduce collisions by 38 percent.
Construction begins: 2009 Completion: 2013
Cost: $100 million
GRAY
New Lane SR 167 to SE 180th, Renton
Adds a lane to SR 167 from the I-405 interchange
to eliminate a bottleneck for people
traveling south off I-405.
Construction begins: 2007 Completion: 2010
Cost: $50 million
GRAY
New Lanes between I-5 and
West Valley Highway (SR 181), Tukwila

Adds a mile of new lane in each direction to reduce
congestion for people traveling from I-5
to I-405. Reduces accidents at SR 181 and increases
capacity by 50 percent on both northbound and
southbound I-405 between SR 181 and I-5.
Construction begins: 2008 Completion: 2010
Cost: $30 million
GRAY
New Lanes in each direction between
NE 44th to 112th, Renton

Addresses a major I-405 choke point where the
existing roadway is one lane narrower than I-405 north of I-90.
Construction begins: 2015 Completion: 2018
Cost: $150 million
GRAY
New Lane between SR 167 and SR 169, Renton
Adds one mile of new general-purpose lane northbound
to improve traffic flow just past the SR 167 interchange,
one of the most congested places in the state.
Construction begins: 2009 Completion: 2011
Cost $20 million
GRAY
New Interchange Talbot Road (SR 515), Renton
Relieves pressure from SR 167 and
improves access to downtown Renton.
Construction begins: 2008 Completion: 2010
Cost: $110 million
GRAY
112th Avenue to I-90 Area Improvements
This project reduces congestion by adding
an auxiliary lane and ramp metering.
Improvements increase capacity by 50 percent.
Construction begins: TBD Completion: TBD
Cost: $20 million
GRAY
New Lane between Bellevue and SR 520
Relieves the congestion caused by traffic from
Bellevue merging to enter SR 520, where there
can be congestion up to 8 hours a day. Improves
safety by eliminating traffic weaving on and off
I-405 and on SR 520 between SR 520 and 124th.
Construction begins: 2009 Completion: 2012
Cost: $250 million
GRAY B
NE Tenth Street, Bellevue
Adds a new bridge over I-405 to improve
surface street access into downtown
Bellevue. Relieves pressure at NE 8th.
Construction begins: 2007 Completion: 2009
Cost: $67 million
GRAY
New Lane between NE 124th to SR 522
Reduces congestion between NE 124th and
SR 522 by adding a northbound lane from
NE 124th Street. Reduces the weave north
of to NE 160th NE 160th Street.
Construction begins: 2017 Completion: 2020
Cost: $120 million
GRAY
New Interchange at NE 132 nd Avenue
Alleviates traffic from the busy 124th
interchange and provides new access to I-405.
Construction begins: 2019 Completion: 2021
Cost: $60 million
GRAY
New Lane, Bothell area
Improves northbound traffic flow with a new
lane between 195th and SR 527. Improves evening
peak hour travel speeds by 15 to 20 miles per hour.
Construction begins: 2007 Completion: 2009
Cost: $45 million
GRAY
SR 167 HOV Lanes Auburn to Pierce County
Extends SR 167 HOV lanes - used by buses, carpools
and motorcycles - to Pierce County to keep
traffic moving during busy peak times.
Reduces collisions by 20 percent.
Construction begins: 2008 Completion: TBD
Cost: $80 million
GRAY
New Lanes and Signals -
SR 169 Four Corners, Maple Valley

Drivers using the SR 169/SR 516 intersection face
delays during the morning and afternoon commute
and heavy truck traffic during the day. New signals
and turn and travel lanes will keep drivers moving
safely through the intersection. New sidewalks and
transit stops will improve pedestrians and bus rider
safety. Reduces collisions by 5 percent.
Construction begins: 2007 Completion: 2008
Cost: $2.5 million