Crews begin digging tunnel under Willamette River
By Michael Bamesberger, The Oregonian
Ever wonder what it takes to install a water pipeline under the Willamette River?
A powerful pressured hammer, a steerable underground drill and months of work, at the very least.
Next week, construction crews will begin drilling under the riverbed as part of a massive update to Lake Oswego and Tigard's water systems.Open link to external content ➧