| State Route 25 | |
|---|---|
| Route information | |
| Maintained by MaineDOT | |
| Length: | 42.2 mi (67.9 km) |
| Major junctions | |
| West end: | NH Route 25 in Porter |
| US-202/SR 4/114 in Gorham SR 25 Business in Westbrook I-95/Maine Tpk. in Westbrook State Route 9 in Portland |
|
| East end: | U.S. Route 1 in Portland |
| Location | |
| Counties: | Oxford, York, Cumberland |
| Highway system | |
State Route 25 is a state highway in Maine running about 42 miles (68 km) in length from U.S. 1 in the city of Portland, westward to Porter at the New Hampshire state line. From that state line the road continues westward as New Hampshire Route 25. Its numbering dates back from the New England Interstate Route System of the 1920s.
A bypass of Westbrook, in the form of William Clarke Drive, the Westbrook Arterial and Larrabee Road opened in the late 1970s, with the old alignment via Main Street being designated Route 25 Business. An unnumbered extension of Larrabee Road continues to the north with access to the Turnpike at Exit 48. In 2002, the Westbrook Arterial was extended to Rand Road in Portland, passing over the Maine Turnpike/I-95 with a new direct interchange (exit 47.) By 2007, this bypass was designated as part of route 25, with the vacated alignment along Main Street and Brighton Avenue becoming an easterly extension of Route 25 Business.