East Side Combined Sewer Overflow ESCSO
Portland, United States
Start of construction:
May 2005
Construction volume (value of our services):
517 M CHF
Costs converted according to average yearly exchange rates during project realization
As the largest of all Portland’s projects to reduce overflows into the Willamette River, the East Side Combined Sewer Overflow tunnel is designed to significantly reduce sewage and storm water overflows. To reduce risk exposure…