Route 104
Route 104 highlighted in red
Route information
Maintained by MassDOT
Length	12.54 mi[1] (20.18 km)
Existed	by 1933–present
Major junctions
West end	US 44 in Taunton Route 24 in Bridgewater Route 18 / Route 28 in Bridgewater
East end	Route 106 in East Bridgewater
Location
Country	United States
State	Massachusetts
Counties	Bristol, Plymouth
Highway system
Massachusetts State Highway System Interstate US State
← Route 103 → Route 105

Route 104 is a 12.54-mile-long (20.18 km) west–east highway in southeastern Massachusetts. Its western terminus is at U.S. Route 44 (US 44) in Taunton and its eastern terminus is at Route 106 in East Bridgewater.

Route 104 begins at U.S. Route 44 in Taunton. The highway crosses less than a thousand feet later thereafter into Raynham and passes through Raynham Center. The highway crosses over Interstate 495 without an interchange, enters Bridgewater, abuts the southern shore of Lake Nippenicket and intersects with Route 24, all within a space of about one mile (1.6 km). Route 104 then goes through the center of Bridgewater, intersecting with the northern end of the Route 18 and 28 concurrency in a three-route concurrency for a short distance which is signed as a rotary. Just east of the rotary is the location of Bridgewater State University, which Route 104 passes and grants entrance to. It is at that same point where commuters may enter campus to gain access to the Bridgewater station of the MBTA's Middleborough-Lakeville commuter rail line. The highway then passes by the source of the Taunton River and ends at Route 106 in East Bridgewater astride the East Bridgewater/Bridgewater town line.

County	Location	mi	km	Destinations	Notes
Bristol	Taunton	0.00	0.00	US 44 – Middleboro, Taunton, Providence, RI	Western terminus
Plymouth	Bridgewater	5.20	8.37	Route 24 – Taunton, Fall River, Boston	Route 24 Exit 24; To I-495 via Route 24 south
		8.60	13.84	Route 18 south / Route 28 south – Middleboro, Cape Cod, Lakeville	Signed as a rotary; southern terminus of Route 18 and Route 28 concurrency
		8.70	14.00	Route 18 north / Route 28 north – Quincy, Boston, Brockton	Signed as a rotary; northern terminus of Route 18 and Route 28 concurrency
	East Bridgewater	12.54	20.18	Route 106 – Easton, Plainville, Halifax	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Closed/former       Concurrency terminus