Springbrook Creek Wetland Mitigation Bank

Established in 2006, the 129-acre Springbrook Creek Wetland Mitigation Bank is located in King County. The bank is approved for mitigation use.


Springbrook Bank in 2013, four years after construction.

Project sponsor

WSDOT Environmental Services Office
310 Maple Park Ave SE
PO Box 47331
Olympia, WA 98504

Gretchen Lux
luxg@wsdot.wa.gov
360-704-6328

City of Renton
Renton City Hall, 5th Floor
1055 S. Grady Way
Renton, WA 98507

Ron Straka
Surface Water Utility Supervisor
rstraka@rentonwa.gov
425-430-7248

Project status

  • Initial credit release: October 10, 2006.
  • Bank received local, state, and federal approval: August 22, 2006.
  • Joint Corps and Ecology public notice: March 13, 2006 with Prospectus.

Site location

  • Water Resource Inventory Area 9, Renton, King County
  • Sections 25, 30, and 36, Township 23N, Ranges 4E and 5E
  • Site location map

Project details

  • Mitigation Banking Instrument
  • Size: 129.37 acres in five units
    • Unit A/B: 62.2 acres
    • Unit C: 47.7 acres
    • Unit D: 4.6 acres
    • Unit E: 14.8 acres
  • Site actions: Wetland re-establishment, rehabilitation, and enhancement; riparian and upland enhancement.
  • Service area map