Hampden Bridge Bundle Project
The Maine Department of Transportation is rebuilding eight bridges and rehabilitating one bridge along a four-mile-long stretch of I-95 in Hampden. The Hampden Bridge Bundle Project, valued at $44.7 million, consists of four northbound/southbound bridge pairs at four different sites along the interstate between Exit 174 and Exit 180. Three of the bridge pairs cross Souadabscook Stream (bridges 5951, 1433, 5950, 1432, 5949, and 1431), and one pair crosses Emerson Mill Road and the Central Maine & Quebec Railway (bridges 1430 and 5969). The bridge rehabilitation occurs at the Exit 180 off-ramp on Cold Brook Road over I-95 (bridge 5970).
These bridges are approximately 60 years old and are approaching the end of their useful lives. The new structures will include non-corrosive materials to reduce future maintenance needs. The bridges over the Souadabscook Stream will be single-span structures to eliminate the need for piers in the water.
The project includes the removal of all eight existing bridges and the design and construction of eight full replacement bridges using the design-build method. The Cold Brook Road Exit 180 off-ramp will consist of pier substructure rehabilitation.
Temporary diversion roadways/bridges will be constructed in the median of I-95 to maintain two travel lanes in each direction during daylight hours throughout the length of this project. Work will begin on the northbound side. Northbound traffic will be diverted to the temporary bridge along the stretch of I-95 while the northbound bridges are under construction. After the new northbound bridges are complete, northbound traffic will move to the new bridges. Then, southbound traffic will transfer to the temporary bridge while construction begins to replace the existing southbound bridges. Median work begins in February 2020 and will continue through April 2020 with the remainder of the construction sequence to follow. We expect traffic impacts will be minimal throughout 2020. The new bridges will be open in stages with construction complete by November 2022.
There will be interstate travel lane reductions to one lane, either northbound or southbound, during overnight hours (between 7:00 p.m. and 7:00 a.m.). These lane closures are allowed Sunday through Thursday and will be clearly marked. Drivers are encouraged to drive cautiously, observe signage in the work zone, and obey work zone speed limits.
Cianbro Corporation of Pittsfield is the contractor on this project.