Keene motorists will encounter road closures, detours and lane restrictions this week as crews tackle several infrastructure projects. Construction crews will be working on roads, sidewalks, drainage systems and other infrastructure projects across Keene this week. KEENE, N.H. (MyKeeneNow) Several road, sidewalk, drainage and infrastructure projects are scheduled across Keene this week, with motorists, pedestrians and cyclists likely to encounter closures, detours and lane restrictions. West Street will be closed while crews are actively working, with detours used as necessary. Beginning Tuesday, Aug. 4, the city’s Highway Division plans to pave the West Street sidewalks west of the NH Route 9/12 overpass.