Multiple Red Line closures coming this month will overlap with Green Line shutdowns slated to begin Feb. 20 as the MBTA continues its aggressive campaign of repairs and upgrades, officials said.
Between Feb. 5 and Valentine’s Day, Red Line service will be suspended between Alewife and Harvard stations, the MBTA said in a statement. During the same period, Red Line service will be suspended after 8:45 p.m. from Alewife to Park Street.
Free shuttle buses will replace train service. Red Line stations will remain open so riders can wait for the buses sheltered from the cold. The commuter rail will be free between Porter and North Station.
“This service change is in place while crews perform work as part of the Track Improvement Program, which will upgrade infrastructure in order to improve reliability, alleviate safety-related speed restrictions along the line, and improve travel times for MBTA riders,” the agency said.
Red Line service also will be suspended between Harvard and Broadway stations during the weekend of Feb. 24-25.
From Feb. 20 through March 8, Green Line trains won’t run on the B branch between Copley and Babcock Street stations, the MBTA said. Shuttle bus service will be available, and the 57 bus will be free to ride between Kenmore and Packard’s Corner. The commuter rail will be free from Lansdowne and Back Bay to South Station.
On the C branch, trains won’t run between Copley and Cleveland Circle during that span, while D branch service will be closed between Copley and Brookline Hills.
The E branch will have regular service but riders should “anticipate longer waits between Government Center and Copley.” No fares will be collected at Copley.
On the Orange Line, service will be suspended between Forest Hills and Ruggles stations during the weekend of Feb. 17-18. The commuter rail will be free between Forest Hills, Ruggles, Back Bay, and South Station.
On Monday, several sections of the Green Line reopened after weeks of shutdowns to repair tracks and remove 16 speed restrictions, one more than had been planned, MBTA officials said. The shutdowns lasted from Jan. 3 until Jan. 12 with a second round of closures from Jan. 16 through Jan. 28.
Material from prior Globe stories was used in this report.
Travis Andersen can be reached at email@example.com.