The intersections of 11th and Trevitt and 12th and Trevitt in The Dalles will be closed on Monday. It’s part of the utility upgrade project on Trevitt Street that started in mid-September and will continue into November. The throughway at 10th Street will remain open on Monday. Crestline Construction is the contractor for The Dalles Public Works Department on the project. The work involves replacement of sewer and storm main lines on Trevitt between 9th and 12th. People should use detour routes for local access, and to get to Sorosis Park and Colonel Wright Elementary School.