Marion to Bridgewater via Middleboro.
Cosigned with MA 18 south of Lakeville.
The section from Marion to Lakeville appears as early as 1930. By 1933, it reached north to Middleboro. When US 44 bypassed Middleboro between 1961 and 1966, 105 took over the former Rt 44. Finally, in 1971, 105 was extended north to MA 106 in eastern Bridgewater.
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