FAIRFIELD — Maine Transportation officials say a ramp leading to Interstate 95 in the Fairfield area will be closed for 2 1/2 years.

The northbound on-ramp at exit 133 will be closed beginning Thursday. Commuters who would use that exit will be detoured to exit 132 via U.S. Routes 201 and 139. Wide loads will be restricted from exits 132 to 138 northbound and southbound.

Officials say reconstruction of the Clinton Clauson Bridge between the towns of Fairfield and Benton began this October. The $9.3 million project involves replacing the northbound and southbound bridge decks on I-95 as well as the deck of a smaller bridge just south of the Clauson Bridge that spans the Pan Am Railways track.

Motorists will use crossovers, and speed limits will be lowered.