LONDONDERRY — Things are going to start happening at Exit 5 next spring.

Peter Stamnas, the Department of Transportation's project manager for the Interstate 93 widening project, gave an overview of two projects planned for the spring at the Town Council meeting Monday.

A $48 million project will complete the interchange at Exit 5 with the replacement of the northbound off-ramp, four bridges and widening of Route 28.

The southbound on- and off-ramps and the northbound on-ramp were completed in May.

Four bridges will be replaced, two over Route 28 and two over the recreation trail by 2012. Route 28 will be widened in that area to six lanes, with the option of adding two more lanes in the future as needed. That would eliminate an existing traffic island.

Public works director Janusz Cryzowski asked Stamnas if the state would pay the cost, rather than the town, if the island had to be removed in the future. Stamnas said it would come from the state budget.

Town Councilors John Farrell and Sean O'Keefe and Chairman Paul DiMarco expressed concern about increased traffic on Route 28 making it more difficult to take a left turn out of Auburn Road, just south of the intersection.

Cryzowski assured the councilors he would give his opinion on this when the time came. The widening of Route 28 is scheduled to be completed by the summer of 2013.

Councilor Mike Brown asked if Exit 4A was included in the plan and Stamnas said, "From a construction standpoint, no."

The second project scheduled for the spring of 2011 is work on the South Road mitigation sites near Gilcreast Road. One site is a turtle habitat and the other has been used for excavating materials used at Exit 5.

"We know there are regular flooding problems in this area," Stamnas said.

South Road will be closed for about two weeks during the project.

Stamnas said fact sheets about both projects will soon be available on the DOT's website.

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