Memorial Drive (Cambridge)
| Charles River Road | |
| Maintained by | Massachusetts DCR |
| Length | 3.9 mi (6.3 km) |
| Coordinates | 42°21′47″N 71°06′58″W / 42.36306°N 71.11611°W |
| West end | US 3 / Route 2 / Greenough Boulevard in Cambridge |
| Major junctions | Route 2 in Cambridge Route 2A in Cambridge |
| East end | Route 3 / Main Street in Cambridge |
| Construction | |
| Inauguration | 1923 |
Memorial Drive, colloquially referred to as Mem Drive, is a 3.9-mile (6.3 km) parkway along the north bank of the Charles River in Cambridge, Massachusetts, United States.
The parkway runs parallel to two major Boston parkways, Soldiers Field Road and Storrow Drive, which lie on the south bank of the river. The western terminus is in West Cambridge at Greenough Boulevard and Fresh Pond Parkway. The eastern terminus is at Main Street and the Longfellow Bridge near Kendall Square. Memorial Drive is designated as U.S. Route 3 for most of its length, except the easternmost 0.7 miles (1.1 km) which are designated as Massachusetts Route 3 (US 3 and Route 3 connect end-to-end and are treated as one continuous route by the state). Route 2 is cosigned with US 3 on Memorial Drive between the western terminus and the Boston University Bridge.