The Maine Department of Transportation sent out a press release Monday of the upcoming construction of a Bangor bridge.

The Ohio Street Bridge, spanning over I-95, is getting replaced with demolition starting at some point this month.  Destruction of the bridge is expected to last through April.  A new bridge is expected to built and operational by September of this year.

The Maine DOT has sent information on alternative routes during the process:

...local traffic, including pedestrians, will be detoured. After the new bridge opens, there will be alternating one-way traffic with flaggers until the project is completed this fall.

Also expect complete interstate closures during the overnight hours Monday thru Thursday, which starts at 11 PM and goes until 5 AM.  It is mentioned, however, that there will be no interstate closures during July and August.

Here are more details provided by the Maine DOT regarding the project:

The Ohio Street Bridge is approximately 60 years old and is approaching the end of its useful life. The new structure will include non-corrosive materials to reduce future maintenance needs. The new bridge will also provide an additional 18 inches of clearance for vehicles on the interstate. This $5.9-million project will also add a turning lane on Ohio Street for vehicles turning onto the ramp to travel southbound on I-95. MaineDOT is using some precast concrete bridge substructure elements during construction to expedite the process and minimize the impact to the traveling public.