An inbound stretch of Storrow Drive and Soldiers Field Road will be closed each night through August for tunnel repairs, officials announced.
Starting Monday, the closures will begin at 8 p.m. and last until 5 a.m., state officials said.
Road closures begin at North Harvard Street in Allston and stretch along the Charles River Esplanade to Mugar Way in Boston, near the Hatch Memorial Shell, officials said.
Traffic will be detoured into Cambridge over the Anderson Bridge, along Memorial Drive, and then be routed into Boston over the Longfellow Bridge.
The closures will allow ongoing repairs to the Storrow Drive Tunnel in the Back Bay. The work is the first phase of a two-stage project to extend the lifespan of the tunnel, which carries roughly 50,000 drivers to and from downtown Boston daily.
The outbound portion of the tunnel and accompanying roadways will not be affected.
State transportation officials said changes to the work schedule will be made when necessary to minimize impacts during major local events at TD Garden, Fenway Park, or during the FIFA World Cup and 250th anniversary celebrations scheduled for this summer.
Additional changes may be made without notice due to weather.
Transportation officials have not specified when the closures will end.
Bryan Hecht can be reached at bryan.hecht@globe.com. Follow him on Instagram @bhechtjournalism.