Maine State Route 24

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State Route 24 marker

State Route 24
Route information
Maintained by MaineDOT
Length: 44.10 mi[1] (70.97 km)
Existed: c. 1933 – present
Major junctions
South end: Bailey Island near Harpswell
SR 24 Bus. in Brunswick / Topsham
US 1 / SR 196 in Brunswick
North end: US 201 / SR 9 / SR 27 / SR 126 in Gardiner
Counties: Cumberland, Sagadahoc, Kennebec
Highway system
SR 23 SR 25

State Route 24 (abbreviated SR 24) is part of Maine's system of numbered state highways, running from Bailey Island south of Harpswell northward to Gardiner, passing through Brunswick along the way.

Route description[edit]

SR 24 begins at the southern tip of Bailey Island in the town of Harpswell, where it dead-ends. It proceeds northward through the "downtown" area of Harpswell on Orr's Island and continues onto mainland Maine where it crosses into the town of Brunswick.

SR 24 used to traverse downtown Brunswick, but now bypasses the downtown area. The route continues north until reaching the southern terminus of its business route, then interchanges with a freeway portion of US 1, which it then joins until it reaches SR 196. SR 24 exits US 1 to join Route 196 and both routes cross the Androscoggin River into Topsham. SR 24 splits off from Route 196 immediately after crossing the river and rejoins its former alignment.

SR 24 enters the town of Bowdoinham where it meets the northern terminus of SR 125 and turns northeast. SR 24 enters Richmond and briefly overlaps with SR 197 before continuing into Gardiner, paralleling the river at this point. SR 24 comes to an end in the heart of Gardiner at the intersection of Maine Avenue and Bridge Street (US 201, SR 9, SR 27, and SR 126).


SR 24 between its southern terminus and the Androscoggin River crossing was formerly designated SR 124. It was renumbered to 24 in the early 1930s when the number 124 was reassigned to a completely new route. From Topsham, SR 24 was designated over a new routing to its current northern terminus in Gardiner and ultimately as far as Guilford.

From Gardiner, SR 24 used to run concurrently with US 201 and SR 27 to Sidney, a designation which was simply dropped following SR 24's truncation in 1954. The remainder of the route, which runs from Sidney to Guilford, was renumbered SR 23. This 1954 routing remains to the present.[1]

Major intersections[edit]

County Location mi[1] km Destinations Notes
Cumberland Harpswell 0.00 0.00 Harpswell Islands Road (dead end) Southern terminus
Brunswick 15.2 24.5
SR 24 Bus. north (Bath Road) to SR 123
Southern terminus of SR 24 Business
15.4 24.8 US 1 north – Bath, Wiscasset Interchange; southern end of wrong-way concurrency with US 1
17.7 28.5 US 1 south to US 201 / I‑295 – Freeport, Yarmouth
SR 196
Interchange; northern end of wrong-way concurrency with US 1;
southern terminus of SR 196
Sagadahoc Topsham 18.3 29.5 SR 196 north (Brunswick-Topsham Bypass) to US 201 / I‑295 – Lisbon, Lewiston Northern end of concurrency with SR 196
18.4 29.6
SR 24 Bus. south (Elm Street) to US 201
Northern terminus of SR 24 Business
Bowdoinham 25.7 41.4 SR 125 (Main Street) to SR 138 / I‑295 – Bowdoin Northern terminus of SR 125
Richmond 33.9 54.6 SR 197 west (Main Street) to I‑295 – Bowdoin, Litchfield Southern end of concurrency with SR 197
34.3 55.2 SR 197 east (Front Street) to SR 127 / SR 128 – Dresden Northern end of concurrency with SR 197
Kennebec Gardiner 44.1 71.0 US 201 / SR 9 / SR 27 / SR 126 to SR 226 – Augusta, Randolph Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Bannered business route[edit]

State Route 24 Business
Location: Brunswick
Existed: 2014–present

In 2014, SR 24 was removed from its existing alignment in downtown Brunswick and Topsham and routed along the US 1 freeway and the southernmost 12 mile (0.80 km) of SR 196 to bypass downtown. This re-routing reduced the overall length of SR 24 by approximately 1 mile (1.6 km) and eliminated its concurrency with US 201. Its existing alignment was redesignated SR 24 Business.

SR 24 departs its old alignment at the intersection of Gurnet and Bath Roads. Instead of turning left onto Bath Road, it now continues straight onto the US 1 bypass. It runs concurrently with US 1, then exits onto SR 196 northbound. SR 24 departs SR 196 at Bypass Road and rejoins its existing alignment at Elm Street in Topsham.

Business 24's alignment turns left onto Bath Road, then right onto Maine Street where it intersects US 1, then crosses into Topsham where it turns right onto Elm Street and rejoins SR 24.