Heath Street service was extended to Lechmere on January 2, 1983. A snowstorm on February 11 temporarily shut down the Arborway Line; a Lechmere–Government Center shuttle was run to replace the Heath Street cars. The Arborway Line quickly reopened, but the Heath Street turns were not resumed; the shuttle ran until March 26. From October 12 to November 11, 1983, the line was cut back to (with double-ended LRVs) due to Southwest Corridor construction near Arborway, with route 39 buses running. Heath Street short turns were resumed on September 18, 1984 using LRVs.