SOUTHINGTON — The Connecticut Department of Transportation (DOT) has announced that Interstate 84 will be closed in both directions to all traffic at Exit 30 (Marion Avenue) in Southington on Friday night, June 27, and is scheduled to reopen Monday morning, June 30.

Major traffic delays are anticipated. Motorists are encouraged to plan ahead, avoid the area, and to seek alternative routes. Suggested alternate routes include I-91, I-691, Route 9 and Route 72. Local detours are established for residents and businesses in the area surrounding the construction site, and signs will be posted.

Two bridges that carry I-84 over Marion Avenue — one eastbound and one westbound — are being replaced with new structures that have been built alongside the existing bridges. The replacement will require the complete closure of I-84 in both directions over Marion Avenue and will be completed in one weekend.

The closures will begin at 9 am Friday, with the closing of the Southington Rest Area along I-84 East.

At 5 pm Friday, the Exit 30 off and on ramps will be closed. Marion Avenue will be closed at the ramps, for the duration of the work. There will be no through traffic allowed; Atwater Street will be closed from Canal Street to Marion Avenue.

The Exit 30 on and off ramps will also be closed, for approximately three hours, to set up traffic control and staging for the full closure of I-84.

At 6 pm, one lane will be closed on I-84 East at Exit 27 (I-691). At 7 pm, one lane will be closed on I-84 West at Exit 31 (Route 229).

At 9 pm, I-84 will be closed to all traffic. The on and off ramps will be reopened to channel a single lane of I-84 traffic around the closed section of the highway. Marion Avenue will remain closed to through traffic.

All roads are scheduled to be reopened by 5 am Monday, June 30.

The rain date for this project is Friday, July 11, beginning at 9 pm, through 5 am Monday, July 14.

The DOT has installed web cameras at the site so the public can access live video and HD time-lapse video during the closure period. Additional information about the project is also available online.