List of state routes in Maine

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State Routes in Maine
State Route 9 markerState Route 11 markerState Route 100 marker
Standard markers of State Routes in Maine
System information
Maintained by MaineDOT
Highway names
Interstates Interstate x (abbreviated I-X)
US Highways U.S. Route x (abbreviated US-X)
State State Route x or Route x (abbreviated SR X)
System links

State routes in Maine are highways within the Maine State Highway System that are signed and maintained by the Maine Department of Transportation, and not U.S. Routes or routes of the Interstate highway system. Some parts of these roads are maintained by local government authorities. There are over 100 State routes.

State Routes[edit]

Note about termini: In several cases there is disagreement between the administrative termini of a route (which are defined by MaineDOT) and the termini signed in the field. All termini listed on this page are administrative termini; discrepancies are listed on the respective pages.

Primary and secondary routes[edit]

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
SR 1 9.0 14.5 US 1 / SR 103 in Kittery US 1A in York 01936-01-011936 01940-01-011940 Redesignated as part of SR 103
SR 1 20.0 32.2 US 1 / SR 9 in Wells US 1 / SR 9 in Biddeford 01940-01-011940 01949-01-011949 Proposed alternate for US 1 but was never approved by AASHTO; it was cosigned with SR 9 for its entire length.
SR 2 9.0 14.5 01937-01-011937 01939-01-011939 Signed and shown on maps along US 2A
SR 3 120.67 194.20 SR 8 / SR 11 / SR 27 in Augusta SR 102 / SR 198 in Mount Desert 01940-01-011940 current
SR 4 168.85 271.74 NH 4 in Rollinsford, NH Haines Landing in Rangeley 01931-01-011931 current
SR 5 118.54 190.77 SR 9 in Old Orchard Beach SR 120 in Andover 01933-01-01c. 1933 current
SR 6 US 1 Old Orchard Beach 01937-01-011937 01947-01-011947 renumbered as SR 98
SR 6 207.23 333.50 Route 173 / US 201 near Saint-Theophile, QC (Armstrong-Jackman Border Crossing) Route 4 near Saint Croix, NB (Saint Croix-Vanceboro Bridge) 01949-01-011949 current Only route with both termini at the Canada–US border
SR 7 61.90 99.62 US 1 / SR 3 / SR 137 in Belfast SR 15 in Dover-Foxcroft 01933-01-01c. 1933 current
SR 8 51.60 83.04 US 201 / SR 11 / SR 17 / SR 27 / SR 100 in Augusta US 201 / US 201A in Solon 01954-01-01c. 1954 current Mostly overlapped by other routes
SR 9 289.09 465.25 NH 9 / NH 236 in Somersworth, NH Ferry Point International Bridge to St. Stephen, NB 01933-01-01c. 1933 current
SR 10 9.28 14.93 US 1 in Presque Isle US 1A in Easton 01940-01-011940 current Formerly US 1
SR 11 400.95 645.27 US 202 / NH 11 in Rochester, NH US 1 / SR 161 in Fort Kent 01933-01-01c. 1933 current Longest state highway in Maine
SR 15 180.12 289.88 Main / West Main / School Streets in Stonington US 201 / SR 6 in Jackman 01933-01-011933 current
SR 16 189.78 305.42 NH 16 in Wentworth's Location, NH US 2 in Orono 01933-01-01c. 1933 current
SR 17 130.70 210.34 SR 4 in Rangeley US 1 / US 1A in Rockland 01933-01-01c. 1933 current
SR 18 54.15 87.15 NH 18 in Conway (now US 302) US 1 in Portland (now SR 77) 01926-01-011926 01935-01-011935 State highway designation for former NEI 18, later redesignated US 302 in 1935
SR 22 19.48 31.35 SR 35 in Buxton SR 25 / SR 77 in Portland 01939-01-011939 current
SR 23 68.53 110.29 SR 8 / SR 11 / SR 17 in Sidney SR 6 / SR 15 / SR 16 in Guilford 01954-01-011954 current
SR 24 43.99 70.80 Baileys Island Road in Harpswell US 201 / SR 9 / SR 27 / SR 126 in Gardiner 01933-01-01c. 1933 current
SR 25 42.38 68.20 NH 25 near Freedom, NH SR 22 / SR 77 in Portland 01926-01-011926 current State highway designation for former NEI 25
SR 26 95.91 154.35 SR 77 in Portland NH 26 in Cambridge, NH 01926-01-011926 current State highway designation for former NEI 26
SR 27 154.10 248.00 SR 238 in Southport Route 161 near Saint-Augustin-de-Woburn, QC
Coburn Gore-Woburn Border Crossing)
01933-01-011933 current
SR 32 58.62 94.34 SR 130 in Bristol US 201 / SR 100 / SR 137 Business in Winslow 01933-01-011933 current
SR 35 90.90 146.29 SR 9 / SR 9A in Kennebunk US 2 / SR 5 in Bethel 01933-01-01c. 1933 current
SR 37 9.25 14.89 SR 117 in Bridgton SR 118 in Waterford 01937-01-01c. 1937 current
SR 41 12.6 20.3 SR 41 in New Sharon SR 43 in Starks 01939-01-01c. 1939 01946-01-011946 renumbered as SR 134; old SR 134 renumbered as SR 41
SR 41 26.88 43.26 US 202 / SR 11 / SR 100 / SR 133 in Winthrop US 2 / SR 27 / SR 156 in Farmington 01946-01-01c. 1946 current Current SR 41 was originally designated SR 134 in 1928; designations were swapped in 1946-7
SR 43 102.71 165.30 Temple / Intervale / Cummings Hill Roads in Temple US 2 / US 2A in Old Town 01933-01-01c. 1933 current
SR 46 18.65 30.01 US 1 in Orland SR 9 in Eddington 01960-01-011960 current Formerly part of SR 175
SR 52 17.19 27.66 US 1 in Camden US 1 in Belfast 01960-01-011960 current Formerly part of SR 137
SR 69 34.62 55.72 SR 11 / SR 100 in Pittsfield US 1A / SR 139 in Winterport 01959-01-011959 current
SR 73 10.68 17.19 SR 131 in St. George US 1 in Rockland 01963-01-011963 current
SR 77 12.32 19.83 SR 207 in Scarborough SR 22 / SR 25 in Portland 01939-01-011939 current
SR 85 7.91 12.73 US 302 / SR 35 in Raymond SR 11 in Casco 01948-01-011948 current
SR 86 10.32 16.61 SR 191 near East Machias US 1 in Dennysville 01962-01-011962 current
SR 88 8.41 13.53 US 1 in Falmouth US 1 in Falmouth 01946-01-01c. 1946 current Formerly US 1
SR 89 10.89 17.53 SR 161B / SR 164 in Caribou US 1A in Limestone 01946-01-01c. 1946 current
SR 90 10.83 17.43 US 1 in Warren US 1 in Rockport 01946-01-01c. 1946 current
SR 91 7.83 12.60 US 1 in York SR 236 in South Berwick 01949-01-011949 current
SR 92 4.19 6.74 US 1 in Machias Old County Road in Machiasport 01939-01-011939 current
SR 93 11.01 17.72 US 302 in Bridgton SR 5 in Lovell 01953-01-011953 current
SR 94 13.35 21.48 SR 7 in Dexter SR 11 / SR 43 in Corinth 01948-01-011948 current
SR 95 8.18 13.16 SR 25 in Gorham SR 35 in Standish 01946-01-01c. 1946 01957-01-011957 Renumbered SR 237 after the designation of I-95
SR 96 5.77 9.29 SR 27 in Boothbay Harbor Middle Road in Boothbay 01948-01-011948 current
SR 97 9.53 15.34 SR 220 in Friendship US 1 in Warren 01949-01-011949 current Formerly SR 220
SR 98 2.81 4.52 US 1 in Saco SR 5 in Old Orchard Beach 01946-01-01c. 1946 current
SR 99 8.76 14.10 SR 109 in Sanford US 1 / SR 9A in Kennebunk 01940-01-01c. 1940 current
SR 100 139.7 224.8 Cumberland Avenue in Portland US 2 in Bangor 01925-01-011925 current First numbered state highway in Maine; now entirely overlapped with other routes, except for one short stretch in Portland; old route from Augusta to Waterville now SR 11; section north of Newport now SR 7, SR 6 / SR 16, SR 155. and SR 188. Rerouted onto current route 1933.
SR 101 US 201 in Augusta US 1 / US 1A in Rockland 01925-01-011925 01933-01-01c. 1933 Renumbered as SR 17
SR 101 8.22 13.23 US 1 in Kittery Gulf Road in Dover, NH 01940-01-01c. 1940 current
SR 102 12.99 20.91 SR 102A in Tremont SR 3 / SR 198 in Bar Harbor 01925-01-011925 current Original 1925 route is now part of SR 3; the modern alignment was first designated in 1931
SR 103 16.33 26.28 SR 236 in Eliot US 1A in York 01929-01-01c. 1929 current
SR 104 US 2 in Newport Greenville Junction 01925-01-011925 01931-01-01c. 1931 Became part of SR 100 and SR 105 (Now SR 7, SR 15, and SR 16)
SR 104 34.7 55.8 SR 8 / SR 11 / SR 27 in Augusta US 2 / US 201 / US 201A in Skowhegan 01931-01-011931 current
SR 105 US 1A in Bangor Greenville Junction 01925-01-011925 01933-01-01c. 1933 Renumbered as part of SR 15
SR 105 48.11 77.43 US 201 / US 202 / SR 9 / SR 17 / SR 100 in Augusta US 1 in Camden 01933-01-01c. 1933 current
SR 106 US 1A in Brewer SR 3 in Ellsworth 01925-01-011925 01933-01-01c. 1933 Renumbered as part of SR 15
SR 106 14.15 22.77 US 202 / SR 11 / SR 100 in Leeds SR 133 in Livermore Falls 01937-01-01c. 1937 current
SR 107 SR 100 (now also US 202) in Auburn Haines Landing 01925-01-011925 01933-01-01c. 1933 Section east of Rangeley transferred to SR 4 in 1931; rest renumbered as part of SR 16; this section now part of SR 14
SR 107 16.22 26.10 SR 11 / SR 113 in Baldwin SR 117 in Bridgton 01936-01-011936 current
SR 108 26.69 42.95 US 2 in Rumford SR 219 in Turner 01925-01-011925 current Current western alignment was first designated in 1929
SR 109 26.16 42.10 US 1 / SR 9 in Wells NH 109 in Wakefield, NH 01925-01-011925 current
SR 110 3.60 5.79 Stevens Corner Road to NH 153 in Wakefield, NH SR 11 in Newfield 01925-01-011925 current Section from Alfred to East Waterboro transferred to SR 4 (now US 202); section west to Limington became part of SR 11
SR 111 SR 110 (now US 202) in East Waterboro SR 25 in Gorham 01925-01-011925 01931-01-01c. 1931 Became part of SR 4
SR 111 13.88 22.34 US 202 / SR 4 / SR 4A in Alfred SR 9 / SR 208 in Biddeford 01933-01-01c. 1933 current
SR 112 25.9 41.7 US 1 / SR 5 / SR 9 in Saco SR 114 in Gorham 01925-01-011925 current
SR 113 54.81 88.21 SR 25 in Standish US 2 in Gilead 01925-01-011925 current 6.0 miles (9.7 km) of the route run in New Hampshire; NH 113B is a loop of SR 113
SR 114 35.04 56.39 US 1 / SR 9 / SR 207 in Scarborough US 302 / SR 11 in Naples 01925-01-011925 current section north of Scarborough was part of SR 207; original section from there became part of SR 35 and SR 95 (now SR 237)
SR 115 18.04 29.03 US 302 / SR 35 in Windham SR 88 in Yarmouth 01925-01-011925 current originally went on what is now US 202 (then SR 4) south of West Gray
SR 116 SR 18 (now US 302) in Naples SR 121 in Mechanic Falls 01925-01-011925 01933-01-01c. 1933 became part of SR 11
SR 116 56.42 90.80 SR 16 in Old Town SR 11 / SR 157 in Medway 01933-01-01c. 1933 current
SR 117 88.16 141.88 SR 112 in Saco SR 219 in Turner 01925-01-011925 current
SR 118 13.04 20.99 SR 35 in Waterford SR 117 / Main Street in Norway 01925-01-011925 current section north of North Waterford became SR 35 / SR 5; this alignment has since been bypassed
SR 119 SR 117 in Harrison SR 118 in Waterford 01925-01-011925 01933-01-011933 Became part of SR 35
SR 119 15.2 24.5 SR 11 / SR 121 in Minot SR 26 / SR 117 in Paris 01935-01-011935 current
SR 120 15.18 24.43 SR 5 in Andover US 2 in Rumford 01925-01-011925 current
SR 121 35.76 57.55 US 302 / SR 35 in Raymond US 202 / SR 4 / SR 11 / SR 100 in Auburn 01925-01-011925 current
SR 122 5.11 8.22 SR 26 in Poland US 202 / SR 4 / SR 100 in Auburn 01925-01-011925 current
SR 123 13.66 21.98 Hurricane Ridge Road in Harpswell SR 24 in Brunswick 01925-01-011925 current
SR 124 Bailey's Island US 1 in Brunswick 01925-01-011925 01933-01-01c. 1933 Became part of SR 24
SR 124 12.47 20.07 SR 11 / SR 121 in Mechanic Falls SR 117 in Buckfield 01933-01-01c. 1933 current
SR 125 22.12 35.60 US 1 / SR 136 in Freeport SR 24 in Bowdoinham 01925-01-011925 current
SR 126 48.78 78.50 US 202 / SR 100 in Lewiston SR 220 in Washington 01925-01-011925 current
SR 127 U.S. Route 201 in Gardiner US 1 in Wiscasset 01925-01-011925 01933-01-01c. 1933 Became part of SR 27
SR 127 25.64 41.26 Seguinland Road in Georgetown SR 27 / SR 197 in Dresden 01933-01-01c. 1933 current
SR 128 US 1 in Wiscasset Boothbay Harbor 01925-01-011925 01933-01-01c. 1933 Became part of SR 27
SR 128 15.36 24.72 SR 127 in Woolwich SR 27 in Dresden 01933-01-01c. 1933 current
SR 129 13.36 21.50 Middle Road in South Bristol US 1 Bus. / SR 130 in Damariscotta 01925-01-011925 current
SR 130 14.41 23.19 Pemaquid Loop Road in Bristol US 1 Bus. / SR 129 in Damariscotta 01925-01-011925 current
SR 131 58.63 94.36 Drift Inn / Glenmere Roads in St. George SR 141 in Swanville 01925-01-011925 current
SR 132 SR 101 (now SR 17) in Jefferson US 1 in Waldoboro 01925-01-011925 01933-01-01c. 1933 Became part of SR 32
SR 132 10.8 17.4 SR 9 / SR 126 in Sabattus US 202 / SR 11 / SR 100 in Monmouth 01937-01-01c. 1937 current
SR 133 31.78 51.14 US 202 / SR 11 / SR 41 / SR 100 in Winthrop US 2 / SR 4 in Farmington 01925-01-011925 current
SR 134 26.96 43.39 US 202 / SR 11 / SR 100 / SR 133 in Winthrop US 2 / SR 27 / SR 156 in Farmington 01925-01-011925 01946-01-01c. 1946 Renumbered as SR 41; old SR 41 renumbered as SR 134
SR 134 12.6 20.3 SR 41 in New Sharon SR 43 in Starks 01946-01-01c. 1946 current
SR 135 23.48 37.79 SR 132 in Monmouth SR 8 / SR 11 in Belgrade 01925-01-011925 current
SR 136 23.48 37.79 SR 100 (now SR 11) in Oakland US 2 in Norridgewock 01925-01-011925 01933-01-01c. 1933 became part of SR 137
SR 136 19.17 30.85 US 1 / SR 125 in Freeport US 202 / SR 11 / SR 100 in Auburn 01933-01-01c. 1933 current
SR 137 56.25 90.53 US 2 in Mercer US 1 / SR 3 / SR 7 in Belfast 01925-01-011925 current
SR 138 US 201 in Augusta US 1 in Hampden 01925-01-011925 01933-01-01c. 1933 became part of SR 9 (now also US 202)
SR 138 9.53 15.34 US 201 in Bowdoin US 201 in Richmond 01946-01-01c. 1946 current Originally designated SR 201 in 1937; renumbered in 1946-7
SR 139 58.83 94.68 US 2 / US 201A / SR 8 in Norridgewock US 1A / SR 69 in Winterport 01925-01-011925 current
SR 140 SR 100 (now SR 8/ SR 11) in Belgrade US 2 in New Sharon 01925-01-011925 01933-01-01c. 1933 became part of SR 27
SR 140 22.4 36.0 SR 117 in Buckfield SR 4 / SR 17 in Jay 01933-01-01c. 1933 current
SR 141 13.22 21.28 US 1 / SR 3 in Belfast SR 139 in Monroe 01925-01-011925 current
SR 142 43.29 69.67 US 2 / SR 17 in Dixfield SR 16 / SR 27 in Kingfield 01925-01-011925 current
SR 143 SR 107 (now SR 4/ SR 27) in Fairbanks Eustis 01925-01-011925 01933-01-01c. 1933 outside Eustis became part of SR 4 in 1931; remainder became part of SR 27
SR 143 15.25 24.54 US 202 / SR 9 in Dixmont SR 222 in Stetson 01937-01-01c. 1937 current
SR 144 SR 107 (now SR 4) in Rangeley US 201 (now US 201A) in North Anson 01925-01-011925 01933-01-01c. 1933 Became part of SR 16
SR 144 SR 16 in Oquossoc Haines Landing 01937-01-011937 01951-01-01c. 1951 Became part of SR 4
SR 144 8.42 13.55 West Shore Road in Westport US 1 in Wiscasset 01954-01-011954 current
SR 145 10.15 16.33 SR 4 in Strong SR 142 near Kingfield 01925-01-011925 current
SR 146 6.33 10.19 SR 27 in New Portland SR 16 in New Portland 01925-01-011925 current
SR 147 15.0 24.1 US 2 / US 201 in Skowhegan US 201 in Solon 01925-01-011925 01954-01-011954 Redesignated US 201 after the designation of US 201A in 1954
SR 148 19.22 30.93 SR 43 in Industry US 201 in Madison 01925-01-011925 current Western segment formerly SR 43A
SR 149 16.08 25.88 SR 4 in Strong SR 142 in Phillips 01951-01-011951 current
SR 150 50.81 81.77 US 2 in Skowhegan Sebec Lake in Willimantic 01925-01-011925 current
SR 151 30.45 49.00 US 2 in Palmyra SR 16 near Wellington 01925-01-011925 current
SR 152 20.31 32.69 SR 11 / SR 100 in Pittsfield SR 150 in Cambridge 01925-01-011925 current
SR 153 4.66 7.50 SR 6 / SR 16 in Dover-Foxcroft Greeley's Landing in Dover-Foxcroft 01933-01-01c. 1933 current
SR 154 20.21 32.52 SR 151 near Wellington SR 23 in Ripley 01933-01-01c. 1933 current
SR 155 34.41 55.38 SR 11 / SR 221 in Bradford US 2 / SR 6 in Lincoln 01955-01-011955 current
SR 156 23.16 37.27 SR 142 in Weld SR 41 in Chesterville 01929-01-011929 current
SR 157 22.46 36.15 SR 11 in Millinocket US 2 in Mattawamkeag 01925-01-011925 current
SR 158 4.42 7.11 SR 11 in Sherman US 2 in Sherman 01925-01-011925 current
SR 159 20.68 33.28 Shin Pond Village in Mt. Chase US 2 in Island Falls 01925-01-011925 current
SR 160 32.64 52.53 SR 5 in Limerick SR 117 in Denmark 01933-01-011933 current
SR 161 83.03 133.62 Route 190 in Carlingford, NB
(Fort Fairfield - Andover Border Crossing)
Frank Mack Road in Allagash 01925-01-011925 current
SR 162 16.97 27.31 SR 161 near St. Agatha US 1 in Frenchville 01925-01-011925 current
SR 163 29.22 47.03 SR 11 in Ashland SR 167 in Presque Isle 01925-01-011925 current
SR 164 23.63 38.03 US 1 in Presque Isle US 1 in Caribou 01925-01-011925 current
SR 165 US 1 in Easton US 1A in Fort Fairfield 01925-01-011925 01983-01-011983 Redesignated US 1A in 1983
SR 166 7.34 11.81 Main Street in Castine SR 175 in Penobscot 01940-01-01c. 1940 current Originally designated SR 202 in 1925; renumbered SR 166E in 1939, then SR 166 in 1940-1
SR 167 12.98 20.89 US 1 in Presque Isle US 1A in Fort Fairfield 01936-01-011936 current
SR 168 10.18 16.38 SR 6 in Lee US 2 in Winn 01925-01-011925 current
SR 169 24.22 38.98 SR 6 / SR 170 in Springfield US 1 in Danforth 01925-01-011925 current
SR 170 20.37 32.78 SR 6 / SR 169 in Springfield US 2 in Macwahoc 01925-01-011925 current
SR 171 17.83 28.69 SR 169 in Prentiss US 2A in Reed Plantation 01925-01-011925 current
SR 172 22.66 36.47 SR 175 in Sedgwick US 1 / SR 3 in Ellsworth 01933-01-01c. 1933 current
SR 173 21.03 33.84 US 1 in Lincolnville SR 220 in Liberty 01953-01-011953 current
SR 174 3.8 6.1 US 1A in Prospect US 1 / SR 3 in Prospect 01931-01-011931 current
SR 175 46.16 74.29 SR 15 / SR 172 / SR 176 in Blue Hill US 1 / SR 3 / SR 15 in Orland 01925-01-011925 current
SR 176 38.27 61.59 SR 175 in Brooksville US 1 / SR 3 in Orland 01925-01-011925 current
SR 177 6.98 11.23 SR 175 in Penobscot SR 15 / SR 172 / SR 176 in Blue Hill 01925-01-011925 current
SR 178 13.27 21.36 State Street / SR 9 in Brewer US 2 in Milford 01925-01-011925 current
SR 179 22.34 35.95 US 1A in Ellsworth SR 9 in Aurora 01925-01-011925 current
SR 180 20.1 32.3 US 1A in Ellsworth SR 9 in Clifton 01925-01-011925 current
SR 181 12.46 20.05 SR 180 in Otis SR 9 in Amherst 01925-01-011925 current
SR 182 23.5 37.8 US 1 in Hancock US 1 in Cherryfield 01925-01-011925 current
SR 183 5.45 8.77 US 1 in Sullivan Schoodic Beach Road in Sullivan 01937-01-01c. 1937 current
SR 184 8.64 13.90 Lamoine Beach in Lamoine US 1 in Ellsworth 01925-01-011925 current
SR 185 3.69 5.94 Waukeag Avenue in Sorrento US 1 in Sullivan 01925-01-011925 current
SR 186 16.13 25.96 US 1 in Gouldsboro US 1 in Gouldsboro 01925-01-011925 current
SR 187 22.85 36.77 US 1 in Columbia Falls US 1 in Jonesboro 01925-01-011925 current
SR 188 15.6 25.1 SR 155 in Enfield Lord Brook Road near Burlington 01933-01-01c. 1933 current
SR 189 11.19 18.01 US 1 in Whiting Route 774 on Campobello Island, NB
(Franklin D. Roosevelt Bridge)
01925-01-011925 current
SR 190 7.09 11.41 Water Street in Eastport US 1 in Perry 01925-01-011925 current
SR 191 61.58 99.10 SR 189 in Lubec US 1 / SR 9 near Baileyville 01925-01-011925 current
SR 192 20.39 32.81 US 1 in Machias SR 9 in Wesley 01925-01-011925 current
SR 193 19.11 30.75 US 1 in Cherryfield SR 9 near Beddington 01933-01-01c. 1933 current
SR 194 16.68 26.84 SR 27 in Pittston SR 215 in Newcastle 01951-01-011951 current
SR 195 8.99 14.47 Crowley Island Road in Gouldsboro US 1 in Gouldsboro 01946-01-01c. 1946 current Duplicate number; not renumbered after I-195 was opened in 1983
SR 196 19.42 31.25 US 202 / SR 11 / SR 100 in Lewiston US 1 in Brunswick 01925-01-011925 current
SR 197 20.52 33.02 SR 9 / SR 126 in Sabattus SR 27 / SR 127 in Dresden 01925-01-011925 current
SR 198 10.79 17.36 Main Street in Mount Desert SR 3 in Bar Harbor 01925-01-011925 current
SR 199 10.57 17.01 SR 166 in Castine SR 15 in Penobscot 01925-01-011925 current
SR 200 17.97 28.92 US 1 in Sullivan SR 179 in Waltham 01925-01-011925 current
SR 201 9.53 15.34 US 201 in Bowdoin US 201 in Richmond 01937-01-01c. 1937 01946-01-01c. 1946 Proposed alternate for US 201 but was never approved by AASHTO; renumbered SR 138 in 1946-7
SR 202 Main Street in Castine SR 175 in Castine (now SR 166 / SR 199) 01925-01-011925 01939-01-011939 After US 202 was designated; SR 202 was renumbered SR 166E in 1939, then to SR 166 in 1940-1
SR 203 4.62 7.44 SR 131 in Waldo SR 139 in Brooks 01953-01-01c. 1953 current
SR 204 6.5 10.5 SR 3 in Trenton Seal Point / Marlboro Beach Roads in Lamoine 01936-01-011936 current
SR 205 10.79 17.36 SR 167 in Presque Isle SR 161 in Caribou 01937-01-01c. 1937 current
SR 206 1.6 2.6 SR 17 in Washington SR 105 in Washington 01933-01-01c. 1933 current
SR 207 2.94 4.73 SR 77 in Scarborough US 1 / SR 9 / SR 114 in Scarborough 01925-01-011925 current
SR 208 7.29 11.73 Lester B. Orcutt Blvd. in Biddeford SR 9 / SR 111 in Biddeford 01925-01-011925 current Mostly overlapped by SR 9
SR 209 16.03 25.80 Popham Beach in Phippsburg US 1 in Bath 01925-01-011925 current
SR 210 6.20 9.98 US 1 / SR 164 in Presque Isle US 1 in Presque Isle 01925-01-011925 02007-01-01c. 2007 All signage removed as of October 2007
SR 211 6.7 10.8 SR 134 in Mount Vernon (now SR 41) SR 27 in Belgrade 01933-01-01c. 1933 01957-01-011957
SR 212 10.28 16.54 SR 11 in Moro Plantation US 2 in Smyrna 01925-01-011925 current
SR 213 9.35 15.05 SR 215 in Newcastle SR 126 in Jefferson 01933-01-01c. 1933 current
SR 214 9.96 16.03 SR 191 in Meddybemps US 1 in Pembroke 01933-01-01c. 1933 current
SR 215 17.43 28.05 US 1 Bus. in Newcastle SR 32 in Jefferson 01933-01-01c. 1933 current
SR 216 2.3 3.7 Small Point in Phippsburg SR 209 in Phippsburg 01928-01-011928 current
SR 217 1.22 1.96 Kenyon / Sebasco Roads in Phippsburg SR 209 in Phippsburg 01928-01-011928 02007-01-012007 Designation of Sebasco Road between Kenyon Road and SR 209; all signage was removed as of March 2007
SR 218 20.96 33.73 US 1 / SR 27 in Wiscasset SR 17 / SR 32 in Whitefield 01933-01-01c. 1933 current
SR 219 35.1 56.5 Greenwood Road in Greenwood SR 133 in Wayne 01933-01-01c. 1933 current
SR 220 66.66 107.28 SR 97 in Friendship SR 11 / SR 100 in Wayne 01929-01-011929 current
SR 221 16.05 25.83 SR 15 in Bangor SR 11 / SR 155 in Bradford 01931-01-01c. 1931 current
SR 222 27.65 44.50 SR 7 / SR 11 / SR 43 in Corinna US 2 / SR 100 in Bangor 01936-01-011936 current
SR 223 6.45 10.38 SR 89 in Caribou US 1A in Limestone 01931-01-01c. 1931 current
SR 224 2.09 3.36 SR 11 / SR 11A / SR 109 in Sanford US 202 / SR 4A in Sanford 01933-01-01c. 1933 current
SR 225 5.65 9.09 SR 27 in Rome SR 8 / SR 137 in Smithfield 01932-01-011932 current
SR 226 5.50 8.85 SR 27 / SR 126 in Randolph SR 17 in Chelsea 01934-01-011934 current
SR 227 24.51 39.45 SR 11 in Ashland SR 163 in Presque Isle 01939-01-01c. 1939 current
SR 228 16.93 27.25 SR 164 in Washburn SR 161B in Caribou 01939-01-01c. 1939 current
SR 229 1.96 3.15 US 1A in Limestone Route 375 in Grand-Sault, NB
(Limestone - Gillespie Portage Border Crossing)
01939-01-01c. 1939 current
SR 230 14.24 22.92 SR 3 in Trenton US 1 / SR 3 in Ellsworth 01946-01-01c. 1946 current
SR 231 11.52 18.54 SR 115 in North Yarmouth US 202 / SR 4 / SR 100 in New Gloucester 01954-01-011954 current
SR 232 9.3 15.0 SR 26 in Woodstock US 2 in Rumford 01955-01-011955 current
SR 233 5.85 9.41 SR 3 / SR 198 in Mount Desert SR 3 in Bar Harbor 01956-01-011956 current
SR 234 18.67 30.05 SR 145 / SR 149 in Strong US 201A / SR 8 in Anson 01956-01-011956 current
SR 235 23.71 38.16 US 1 in Waldoboro SR 52 / SR 173 in Lincolnville 01957-01-011957 current
SR 236 15.8 25.4 SR 103 in Kittery SR 9 in Berwick 01957-01-011957 current
SR 237 8.18 13.16 SR 25 in Gorham SR 35 in Standish 01957-01-011957 current Originally designated SR 95 in 1946-7; renumbered SR 237 after I-95 was designated in 1957
SR 238 3.76 6.05 SR 27 in Southport SR 27 in Southport 01975-01-011975 current
SR 701 1.77 2.85 US 1 / SR 9 in Scarborough I‑295 in South Portland Scarborough Connector; posted on mile markers every 0.2 miles (0.32 km) with an origin point at the northern end
SR 703 1.91 3.07 I‑95 in South Portland US 1 / SR 9 in South Portland 02004-01-01c. 2004 current Maine Turnpike Approach Road, also known as the Maine Mall Connector; posted on mile markers every 0.2 miles (0.32 km) with an origin point at the western end
  •       Former

Special routes[edit]

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
SR 4A 6.5 10.5 SR 4 / SR 109 in Sanford US 202 / SR 4 / SR 111 in Alfred 01946-01-01c. 1946 current Southern segment
SR 4A 4.0 6.4 US 202 / SR 4 / SR 35 in Hollis US 202 / SR 4 in Buxton 01937-01-01c. 1937 current Northern segment
SR 5A 2.1 3.4 SR 5 in Lovell SR 5 in Lovell 01960-01-011960 02003-01-01c. 2003
SR 9A 11.28 18.15 SR 9 in Wells SR 9 / SR 35 in Kennebunk 01933-01-01c. 1933 current
SR 9B 4.14 6.66 SR 9 in Wells US 1 in Wells 01933-01-01c. 1933 current
SR 11A 3.3 5.3 US 202 / SR 11 in Sanford SR 11 / SR 109 / SR 224 in Sanford 01931-01-011931 current Southern segment
SR 11A 6.7 10.8 SR 11 in Charleston SR 11 / SR 221 in Bradford 01980-01-01c. 1980 current Northern segment; formerly SR 11
SR 11B 0.3 0.5 SR 11 / SR 157 in Millinocket SR 11 / SR 221 in Millinocket

SR 15 Bus.
2.8 4.5 I‑395 / SR 15 in Brewer I‑95 / SR 15 in Bangor 02005-01-01c. 2005 current Formerly SR 15
SR 15A SR 15 in Corinth SR 15 in Charleston 01950-01-011950 01960-01-011960 Redesignated SR 15 in 1960

SR 24 Bus.
4.3 6.9 SR 24 in Brunswick SR 24 in Topsham 02014-01-012014 current Newest state highway designation in Maine; formerly SR 24

SR 25 Bus.
2.8 4.5 SR 25 in Westbrook SR 25 in Portland 01977-01-01c. 1977 current Formerly SR 25
SR 26A 1.6 2.6 US 202 / SR 4 / SR 26 / SR 100 / SR 115 in Gray SR 26 in Gray 02006-01-012006 current
SR 35A 4.7 7.6 SR 35 in Standish SR 25 / SR 35 in Standish 01937-01-01c. 1937 02002-01-01c. 2002 Formerly SR 35; now unnumbered Cape Road west of SR 25
SR 43A 11.3 18.2 SR 43 in Industry SR 43 in Anson 01936-01-011936 01946-01-01c. 1946 Renumbered as an extension of SR 148 in 1946-7
SR 100A 5.1 8.2 US 201 / SR 100 / SR 137 in Winslow SR 100 / SR 139 in Benton
SR 102A 6.7 10.8 SR 102 in Tremont SR 102 in Southwest Harbor

SR 137 Bus.
3.01 4.84 SR 137 in Winslow SR 11 / SR 104 / SR 137 in Waterville 01997-01-011997 current Formerly SR 137
SR 161B 3.62 5.83 US 1 / SR 161 in Caribou SR 161 in Caribou 02012-01-012012 current Formerly SR 161, business route designation
SR 166A 3.77 6.07 SR 166 in Castine SR 166 in Castine 01946-01-01c. 1946 current Originally designated SR 166W; renumbered in 1946-7
SR 172A 11.3 18.2 SR 172 in Stonington (now SR 15) SR 172 in Deer Isle (now SR 15) 01940-01-01c. 1940 01963-01-011963 Decommissioned when SR 172 was truncated in 1963; now unnumbered roads
SR 228T 0.60 0.97 SR 164 in Washburn SR 228 in Washburn 01964-01-011964 current Only truck route ever designated in Maine
  •       Former

Routes crossing state borders[edit]

New Hampshire Route 113B and New Hampshire Route 153 enter Maine. NH 153 remains entirely under NHDOT maintenance. NH 113B is a loop of Maine State Route 113. The spans of NH 113B within Maine are considered unnumbered highway by the MDOT. SR 113 enters New Hampshire several times but remains under MDOT maintenance.

New England Interstates

See also[edit]

References[edit]

External links[edit]