SR 18/Maple Valley to Issaquah/Hobart Rd - Add Lanes
Construct additional lanes and other improvements. Work includes one new interchange and several bridges to complete widening SR 18 to four lanes. This project is a major safety, congestion relief, and freight mobility improvement in a rapidly growing area of King County.
 PIN#:  101820C   Project Page
 DOT Region:  Northwest
 Counties:  King
 State Route:  018
 Location:  Maple Valley East   Locate Project
 Leg Districts:  05
 Program / SubProgram:  Improvement
 Sub-Program:  Economic Initiatives
 Sub-Category:  Trunk System Completion
 Improvement Type:  Four-Lane Trunk Connectivity (10 m tons of freight/yr/T-1 Rte)
 Mile Posts: 16.6 to 19.3    
  Project Costs:
Phase From - To Prior 15-17 17-19 19-21 21-23 23-2525-27 Future Total
Preliminary Engineering Aug-04 - Mar-07 13,747,0001,00000000013,748,000
Right of Way Apr-99 - Oct-03 10,936,000000000010,936,000
Construction Aug-06 - Aug-12 102,554,0002,000000000102,556,000
  Project Totals:  127,237,000 3,000 0 0 0 00 0 127,240,000