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SR 518/SeaTac Airport to I-5 - Eastbound Widening
Eastbound SR 518 is heavily congested between SeaTac Airport and the I-5/I-405 Interchange. The roadway will be widened to add a 3rd eastbound lane. This will improve traffic flow and accommodate projected growth.
 PIN#:  851808A   Project Page
 DOT Region:  Northwest
 Counties:  King
 State Route:  518
 Location:  SeaTac, Tukwila   Locate Project
 Leg Districts:  11, 33
 Program / SubProgram:  Improvement
 Sub-Program:  Mobility
 Sub-Category:  Urban Mobility
 Improvement Type:  Rural/Urban Mobility - General Purpose
 Mile Posts: 2.25 to 3.81    
  Project Costs:
Phase From - To Prior 15-17 17-19 19-21 21-23 23-2525-27 Future Total
Preliminary Engineering Sep-04 - Dec-08 5,072,00000000005,072,000
Construction Jun-07 - Jan-16 31,579,000278,00000000031,857,000
  Project Totals:  36,651,000 278,000 0 0 0 00 0 36,929,000