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South Lander Street Grade Separation Project
Revised August 18, 2009
This project has been placed on hold as of March 2008 due to funding limitations. The future schedule of the project is unknown at this time, though the project remains a priority for SDOT.
02/07/07 Design is underway on the South Lander Street Grade Separation project which began in 2003 with a type, size and location study.
The project serves a need recognized in The Access Duwamish Report. The comprehensive study, of transportation and freight needs, recommended a series of projects to separate railroad tracks from street crossings, increasing safety and improving mobility. Thanks to the recently passed transportation funding package - Bridging the Gap - one of these projects, the South Lander Street Grade Separation, is on its way to becoming a reality.
The bridge structure over the BNSF railroad tracks will touch down at First Avenue S and Fourth Avenue S, ultimately providing a roadway that is no longer impacted by the railroad operations.
In January of 2007, SDOT staff and a design consultant began the early stages of design and the process of meeting with property owners immediately adjacent to the project. A community Open House for the project will be scheduled in the Spring (2007).
Construction is expected to kick-off around mid-2009 and will take about two years to complete.
Benefits of this important project:
- Improve safety on a road that currently crosses BNSF railroad tracks by separating vehicles and pedestrians from train activities.
- Improve access to the SoDo and Duwamish industrial areas.
- Reduce traffic delays caused by train crossings, improving mobility and reliability for travel east and westbound between key south and northbound corridors.
- Enhance access to one of the largest port operations in the United States.
- Help keep traffic moving during the replacement of the Alaskan Way Viaduct.
Early planning estimates place the project cost at approximately $75 million. SDOT has roughly $20 million from the “Bridging the Gap” program and is pursuing additional funding for this important project.
- Type, Size, and Location Study (Word format)
- Vicinity Map (PDF format)
- Photo Key (PDF format)
- Photos in numerical order:
01 - First Avenue S. and S. Lander Street - Facing East
02 - Occidental Avenue S. - Facing South
03 - Occidental Avenue S. - Facing North
04 - Occidental Avenue S. and S. Lander Street - Facing East
05 - BNSF Tracks and S. Lander Street - Facing Southeast
06 - BNSF Tracks and S. Lander Street - Facing South
07 - Third Avenue S. and S. Lander Street - Facing West
08 - Third Ave S. - Facing South
09 - Third Ave S. - Facing North
10 - BNSF Tracks and S. Lander Street - Facing Northwest
11 - BNSF Tracks and S. Lander Street - Facing North
Drawings
- Plan and Profile
- Plan View At-Grade
- Typical Roadway Cross-Section
- Concrete Box Girder Bridge Plan and Elevation
- Concrete Box Girder Bridge Typical Section
Other Concepts Considered
- 2 Lane Overcrossing Concept
- 4 Lane Undercrossing Concept
- 2 Lane Undercrossing Concept
- Option 1A - Steel Girder Bridge Plan and Elevation
- Option 1A - Steel Grider Bridge Typical Section
- Option 1B - Dual Pony Truss Bridge Plan and Elevation
- Option 1B - Dual Pony Truss Typical Section
Turning Movement Analysis
- First Avenue S. and S. Lander Street WB-67 Turning Movements
- First Avenue S. and S. Lander Street WB-67 Turning Movements
- Occidental Avenue S. WB-50 Northbound Turning Movements
- Occidental Avenue S. WB-50 Southbound Turning Movements
- Occidental Avenue S. WB-67 Northbound Turning Movements
- Occidental Avenue S. WB-67 Southbound Turning Movements
- Third Avenue S. and S. Lander Street WB-67 Turning Movements
- Fourth Avenue S. and S. Lander Street WB-67 Turning Movements
- Fourth Avenue S. and S. Lander Street WB-67 Turning Movements
For more information:
Project Manager: Lorelei A. Williams, (206) 684-5178
Lorelei.Williams@seattle.gov
Public Information: George Frost, (206) 615-0786
George.Frost@Seattle.gov
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