Maine State Route 3

State Route 3
Route information
Maintained by MaineDOT
Length:	119.21 mi[1] (191.85 km)
Major junctions
West end:	SR 8 / SR 11 / SR 27 in Augusta
	I‑95 in Augusta US 201 / SR 100 in Augusta US 202 / SR 9 from Augusta to China US 1 from Belfast to Ellsworth
East end:	SR 102 / SR 198 in Mount Desert
Highway system
Maine State Highway System Interstate U.S. State ← US 2A SR 4 →

State Route 3 is part of Maine's system of numbered state highways, running from Route 8, 11 and 27 in Augusta to an intersection with Route 102 in the village of Somesville in the town of Mount Desert, on Mount Desert Island. Route 3 is 119.3 miles (192.0 km) in length.

Route 3 uses the Augusta Bypass, a controlled-access road completed in 2004 to alleviate congestion in the city center caused by traffic headed for Interstate 95. (Previous to this, Route 3 followed U.S. Route 202 into Augusta). It was extended in 2013 to reach Route 8, 11 and 27 just beyond the connection to I-95 and serve the new Alfond Center for Health and Cancer Center.^[2] The bypass ends at U.S. Route 202 on the east end of Augusta, and Route 3 runs concurrently with U.S. 202 (the Belfast Road) to the village of South China, where U.S. 202 leaves to the north. Route 3 continues east to the city of Belfast, where it intersects U.S. 1.

U.S. 1 and Route 3 run concurrently from Belfast through Bucksport, crossing the Penobscot Narrows Bridge over the Penobscot River. From Bucksport, Route 3 and U.S. 1 continue along the Acadia Highway to the city of Ellsworth.

Route 3 leaves U.S. 1 at The Triangle, an intersection at the south end of Ellsworth that has been the center of numerous traffic problems within that city . Continuing south through Trenton, the route crosses a causeway to Mount Desert Island. Route 3 follows the island's eastern shore to the tourist town of Bar Harbor, then continues south through Acadia National Park to the village of Northeast Harbor. The route then turns north, running along with Route 198 to its end near the village of Somesville. Route 3 signs on this last portion of the Route lack directional indicators, as it almost forms a complete loop around the Eastern portion of Mount Desert Island. Signs state "Route" in replacement of directional signs. Directional signs start appearing just east of Seal Harbor when the highway starts turning North, though it is signed as East/West in keeping with the majority of the route.

Junction list

County	Location[3]	mi[3]	km	Destinations	Notes
Kennebec	Augusta	0.00	0.00	SR 8 / SR 11 / SR 27 (Civic Center Drive) – Augusta, Belgrade, Farmington
		1.11– 1.48	1.79– 2.38	I‑95 – Gardiner, Waterville	Exit 113 on I-95
		2.21	3.56	SR 104 (West River Road) – Sidney, Augusta Riverfront, Cancer Center
		3.25	5.23	US 201 / SR 100 (Riverside Drive) – Winslow, Augusta East Side Business District, Camden, Rockland
		4.13	6.65	US 202 / SR 9 west (North Belfast Avenue) – South China, Belfast	Western end of concurrency with US 202 / SR 9
	China	13.34	21.47	SR 32 north (Vassalboro Road)	Western end of concurrency with SR 32
		14.60	23.50	SR 32 south (Windsor Road) – Windsor	Eastern end of concurrency with SR 32
		14.82	23.85	US 202 / SR 9 east (Lakeview Drive) – China, Bangor	Eastern end of concurrency with US 202 / SR 9
Waldo	Liberty	29.84	48.02	SR 220 – Liberty, Thorndike
	Belmont	40.05– 40.13	64.45– 64.58	SR 131 (Searsmont Road / Morrill Road) – Searsmont, Union	Brief concurrency with SR 131
	Belfast	46.41	74.69	US 1 south / SR 52 – Camden, Rockland	Western end of concurrency with US 1
		46.60– 46.91	75.00– 75.49	SR 7 / SR 137 – Belfast, Brooks, Freedom	Interchange; westbound exit and eastbound entrance via High Street; southern terminus of SR 7 / SR 137
		47.12	75.83	Passagassawakeag River
		47.40	76.28	SR 141 – Swanville	Southern terminus of SR 141
	Stockton Springs	56.83	91.46	US 1A – Winterport, Bangor	Southern terminus of US 1A
	Prospect	62.94	101.29	SR 174 – Fort Knox	Eastern terminus of SR 174
Waldo–Hancock county line	Prospect–Verona Island line	63.13	101.60	Penobscot Narrows Bridge over the Penobscot River
Hancock	Bucksport	64.51	103.82	SR 15 north – Bucksport, Bangor	Western end of concurrency with SR 15
	Orland	65.66	105.67	SR 46 – Dedham, East Holden	Southern terminus of SR 46
		66.28	106.67	SR 175 – Orland, Castine	Northern terminus of SR 175
		68.91	110.90	SR 15 south (Front Ridge Road) – Penobscot, Blue Hill, Deer Isle	Eastern edn of concurrency with SR 15
		73.09	117.63	SR 176 – Surry	Eastern terminus of SR 176
	Ellsworth	83.45	134.30	SR 172 – Blue Hill, Surry
		83.65	134.62	SR 230 (Water Street)	Northern terminus of SR 230
		83.93	135.07	US 1A (Oak Street) – Bangor	Northern terminus of US 1A
		84.96	136.73	US 1 north – Calais	Eastern end of concurrency with US 1
	Trenton	88.48	142.39	SR 204 (Jordan River Road) – Lamoine	Western terminus of SR 204
		92.14	148.28	SR 230 (Oak Point Road)	Southern terminus of SR 230
	Bar Harbor	93.51	150.49	SR 102 / SR 198 (Main Street) – Northeast Harbor, Southwest Harbor	Northern terminus of SR 102 / SR 198
		103.44	166.47	SR 233 (Eagle Lake Road) – Cadillac Mountain, Southwest Harbor	Eastern terminus of SR 233
	Mount Desert	115.04	185.14	SR 198 south (Harborside Road) – Northeast Harbor	Western end of concurrency with SR 198
		119.31	192.01	SR 233 – Bar Harbor	Western terminus of SR 233
		120.69	194.23	SR 102 / SR 198 north (Main Street) – Ellsworth, Somesville, Southwest Harbor	Eastern end of concurrency with SR 198
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

References

Route map: Google