The state Department of Transportation has announced the scheduled closure and detour of the Exit 4 off-ramp on I-95 southbound in Greenwich, from 9 p.m. Tuesday through 5 a.m. Friday.

The closure is necessary to facilitate work activities being performed by Eversource Energy to restore the roadway/ramp condition.

Motorists will be detoured to Exit 3 southbound to Arch Street, where they can exit and get back on Interstate 95 Northbound, then follow Interstate 95 northbound to Exit 4, Indian Field Road.