Southbound I-95 on and off ramps in Norwalk and Darien will be closed at night in August for pavement work, the state Department of Transportation has announced. Exits/entrances include 15 and 14 in Norwalk; 13, 12, 11 and 10 in Darien. The ramps will be closed from 9 p.m. to 6 a.m., Monday through Friday.

The work is part of the pavement preservation project along 1-95. The project begins at Exit 10 and ends at Exit 15. The project consists of milling 2.5 inches of the travel surface and replacing it with three inches of polymer modified asphalt and also the replacement of the top two inches of the travel surface. The work was awarded to O&G Industries, Inc., of Torrington, at a cost of $14,488,177 with an anticipated completion date of Nov. 9.