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Exit 45 Redesign

Exit 45 (the Maine Mall Exit) in South Portland is being reconstructed as a Diamond Interchange to accommodate growing traffic numbers with two new ramp toll plazas and wider bridge.  The existing bridge over the turnpike has been hit on numerous occasions by over height vehicles and will be replaced and raised approximately 6 feet to provide a 16.5-foot clearance over the Maine Turnpike. The existing toll booth will be removed and two new ramp toll plazas with both cash and electronic toll collection on either side of the mainline of the turnpike will be constructed. See the rendering below.
Existing Exit 45
MaineTPKE_exit45-SE_exist01-(002).jpg   MaineTPKE_exit45-SE_prop06.jpg

                                                       Redesigned Exit 45 Interchange     

Currently the construction area is being preloaded with material to facilitate settlement. More on this process can be found here.

Work on the redesigned interchange will begin when the preload is complete. Currently that is anticipated to be the first quarter of 2021. Work on the project is anticipated to last until 2023 with the new roadways and toll plazas being operable in late 2022.

During construction there will be coordination and work on items including: drainage, lighting, utility coordination and relocation, signage, highway design, traffic signal design,  and structural and civil engineering of the toll plazas and toll administration building.

The cost of this construction project is anticipated to be about $28 million.

Once the project is under construction you can stay up to date by visiting our Construction Projects page here.

  Redesigned Exit 45 looking south