Snapshot
Portland's West Side CSO
Location:
Portland, Oregon
Project:
Willamette River West Side CSO Tunnel
Value:
$269 million
Owner:
City of Portland Environmental Services
Construction Contract:
Cost-reimbursable/fixed-fee
Tunnel:
3.5-mile, 14.5ft diameter soft-ground tunnel
Designer:
Parsons Brinckerhoff
Contractor:
Impregilo/SA Healy JV
TBM:
7.7m diameter Herrenknecht Mixshield
Operational:
September 2006
Video:
Produced by The City of Portland, Environmental Services