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Mountains to Sound Greenway Trail

In 1990, a non-partisan group of state and regional leaders formed the Mountains to Sound Greenway Trust. Its goal is to link over 700,000 acres of land owned by federal, state, and local agencies into an accessible greenway that will preserve significant natural habitat while providing a natural experience to an increasingly urban population. This territory includes working farms and forests, historic western towns like Cle Elum, developed campgrounds and wilderness, and lakes and rivers.

The Greenway Trail runs 100 miles along Interstate 90, from Seattle's waterfront to the high desert Central Washington grasslands. In 2007, five missing links remained for the trail. The most complicated is the western part of Beacon Hill where the I-5/I-90 interchange poses a formidable barrier.

For more information from SDOT, email George Frost  (615-0786) or email Michael Ward (684-8493).

Beacon Hill Two-phase Extension Plan

On Feb. 28, 2007, SDOT held an open house for review and comment on plans on the project. Recommended by SDOT and the community is a two-phase extension plan: 40 neighbors, transportation professionals, and non-profit agency representatives met to share the details of this much anticipated project.

For Phase One, SDOT plans to extend the trail southward along the east side of I-5 to the South Holgate Street Bridge, and Beacon Avenue South.

In Phase Two, SDOT plans to provide an I-5 overpass for bicycles and pedestrians nearer to I-90, connecting the Mountains-to-Sound trail to 4th Avenue South and South Royal Brougham Way.

The trail extension will start at the end of the existing Mountains to Sound Greenway Trail, near the south end of the Dr. José Rizal Bridge (12th Ave. South).

Beacon Hill Welcomes New Trail as End to "the Jungle" ,
March 5, 2007.
Debera Carlton Harrell, Seattle P-I.

"Greenway People," Mountains to Sound Greenway Newsletter ,
Vol. 13, Num. 3, July 2006, pp. 6-7.

North Beacon Hill Neighborhood Plan, 
March 4, 1999North Beacon Hill Neighborhood Plan, 
March 4, 1999.
Endorses creation of bike path "along the I-5 greenbelt."
Dept. of Neighborhoods.

April 14, 2006: The Day that Made the Trail Happen

 Left to Right:

Nancy Keith, Exec. Dir., Mountains to Sound Greenway Trust
 Pete Lagerway, SDOT Trails Coordinator
James Bush, Leg. Asst. to KC CM Dow Constantine
Heather Nelson, Neighbor
Dean Olson, Neighbor
Carol Baker, South Central Crew Chief, Parks & Recreation
Amy Sherburn, Starbucks & Neighbor
Lawrence Hsu, Neighbor
Katie Moller, Urban Forester, Parks & Recreation
Margaret Kitchell, Feet First
Joanna Nelson, Cascade Land Conservancy,
Green Seattle Partnership Project Manager
David Mozer, International Bicycle Fund/
Friends of Chief Sealth Trail
Chris Arkills, Leg. Asst. to KC CM Dow Constantine
Craig Thompson, Neighbor
Sally Clark, Seattle City Council Member
Jack Tomkinson, Exec. Dir., Urban Sparks
Justin Vander Pol (not pictured), Exec. Dir.,
Backcountry Bicycle Trails Club

Phase 1 and 2 Extensions

Proposed I-5 Pedestrian and Bicycle Bridge Design