MONTPELIER — On Wednesday, July 20, Rt. 15 will be closed just west of its intersection with Rt. 215 for bridge work for the Lamoille Valley Rail Trail. The closure will last 24 hours, from 5 a.m. July 20, to 5 a.m. on the 21st. A signed detour will be in place around the project location in the area of Rt. 215, Rt. 2 and Rt. 14. From 6 a.m.-6 p.m. on the 20th, motorists on Rt. 14 on the detour route may experience alternating one-way flow associated with the paving project on Rt. 14 in Hardwick. Work on the rail trail is expected to be completed this fall.