From ODOT-
The Willamette River Bridge project is ODOT's largest bridge replacement project to date. We work closely with our contractor to find opportunities to save time and money, while constructing a bridge designed to last 100 years.
Recently, we agreed to purchase steel ahead of schedule to start building the second work bridge a year earlier than originally planned. This allows us to complete some work before this year's in-water work windows ends. For this project working in the river is restricted to windows of time between July and October and the month of April in order to protect endangered and sensitive species in the Willamette River.
Early completion of the work bridge means the contractor can dismantle the detour bridge and do other preparatory work on the northbound Interstate 5 bridge at least six months earlier than originally expected. Saving time helps to save money.
~Jyll
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