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State Route 100 (SR 100) is a state highway in the U.S. state of Maine, running from Portland to Bangor.

State Route 100 marker

State Route 100
Route of SR 100 highlighted in red
Route information
Maintained by MaineDOT
Length139.93 mi[1] (225.20 km)
Existed1925, 1935 (current routing)–present
Major junctions
South endForest Avenue / Cumberland Avenue in Portland
 
North end US 2 in Bangor
Location
CountiesCumberland, Androscoggin, Kennebec, Waldo, Somerset, Penobscot
Highway system
SR 99SR 101

The south end of SR 100 is at the intersection of Forest Avenue and Cumberland Avenue in downtown Portland. Its north end is at the intersection of Hammond Street, Main Street, State Street and Central Street in downtown Bangor; SR 100 runs along Hammond Street with U.S. Route 2 (US 2) which continues across Main Street/Central Street onto State Street.

The majority of SR 100 is concurrent with other routes: US 302 from downtown Portland to northern Portland, SR 26 from northern Portland to Gray, US 202 from Gray to Augusta, US 201 from Augusta to Fairfield, SR 11 from Fairfield to Newport, and US 2 from Newport to downtown Bangor. The only parts of SR 100 that do not run along another route are in Portland, first between its southern terminus and the Interstate 295/US 1 interchange (where US 302 begins) and between US 302 and SR 26 where it is alone on a small piece of Allen Avenue.[2]

Contents

Major junctionsEdit

CountyLocationmi[1]kmDestinationsNotes
CumberlandPortland0.000.00Cumberland Avenue / Forest Avenue
0.39–
0.60
0.63–
0.97
    I‑295 / US 1 / US 302 begins – Falmouth, South PortlandExit 6 (I-295); southern end of US 302 concurrency
1.452.33   SR 9 south (Woodford Street) / Deering AvenueSouthern end of SR 9 concurrency
1.542.48  SR 9 north (Ocean Avenue) / Saunders StreetNorthern end of SR 9 concurrency
2.794.49  US 302 west (Forest Avenue) – WestbrookNorthern end of US 302 concurrency
3.625.83  SR 26 south (Washington Avenue) / Allen Avenue – FalmouthSouthern end of SR 26 concurrency
Falmouth5.95–
6.00
9.58–
9.66
  I‑95 (Maine Turnpike) – Kittery, Boston, Old Orchard Beach, Lewiston, AugustaExit 53 (I-95)
Gray16.74–
16.77
26.94–
26.99
      US 202 west / SR 4 south / SR 115 / SR 26A north (Gray Road / Yarmouth Road) to I‑95 – WindhamSouthern end of US 202 / SR 4 concurrency; southern terminus of SR 26A
16.7927.02  SR 26 north (Shaker Road) – NorwayNorthern end of SR 26 concurrency
New Gloucester24.3639.20  SR 231 south (Intervale Road) / Bald Hill Road – New GloucesterNorthern terminus of SR 231
AndroscogginAuburn27.0143.47  SR 122 west (Poland Spring Road) / Moose Brook Road – PolandEastern terminus of SR 122
27.99–
28.13
45.05–
45.27
  I‑95 (Maine Turnpike) – Portland, Boston, Lewiston, AugustaExit 75 (I-95)
32.08–
32.13
51.63–
51.71
   SR 11 south / SR 121 west (Minot Avenue) – Minot, Mechanic FallsSouthern end of SR 11 concurrency; eastern terminus of SR 121; access from southbound US 202 / SR 4 only
32.7752.74  SR 4 north (Union Street) / Court Street – FarmingtonNorthern end of SR 4 concurrency
33.0453.17  SR 136 south (Mechanics Row) / Turner StreetNorthern terminus of SR 136 (southbound direction of SR 136)
33.1153.29  SR 136 (Main Street) / Great Falls PlazaNorthern terminus of SR 136 (northbound direction of SR 136)
Lewiston33.45–
33.47
53.83–
53.86
   SR 196 south (Canal Street) to I‑95 – Lisbon, BrunswickNorthern terminus of SR 196 (southbound direction of SR 136)
33.4953.90  SR 196 (Lisbon Street) / Chapel Street AlleyNorthern terminus of SR 196 (northbound direction of SR 136)
33.67–
33.70
54.19–
54.23
  SR 126 east (Sabattus Street) – SabattusWestern terminus of SR 126
34.53–
34.61
55.57–
55.70
Russell Street -    To SR 196 / SR 126 – Lisbon, AuburnInterchange
Leeds45.4573.14  SR 106 northSouthern terminus of SR 106
KennebecMonmouth49.5579.74  SR 132 south (Main Street) / Blaisdell Road – MonmouthNorthern terminus of SR 132
Winthrop52.71–
52.98
84.83–
85.26
   SR 41 / SR 133 north (Western Avenue) – Readfield, Downtown Winthrop, WayneInterchange; southern termini of SR 41 / SR 133
55.9690.06  SR 135 north (Stanley Road) – Readfield, Belgrade
56.0890.25  SR 135 south (Winthrop Center Road) – East Monmouth
Manchester59.3195.45  SR 17 west (Readfield Road) / Pond Road – Readfield, LitchfieldSouthern end of SR 17 concurrency
Augusta61.89–
62.14
99.60–
100.00
  I‑95 (Maine Turnpike) – Portland, BangorExit 109 (I-95)
63.62–
63.67
102.39–
102.47
     US 201 south / SR 8 north / SR 11 north / SR 27 (State Street) – Gardiner, BelgradeMemorial Circle; southern end of US 201 concurrency; northern end of SR 11 concurrency; southern terminus of SR 8
Kennebec River63.93–
64.30
102.89–
103.48
Memorial Bridge
KennebecAugusta64.35–
64.44
103.56–
103.71
     SR 9 west / SR 17 east (Stone Street) / SR 105 east to SR 27 (Cony Street) – Downtown AugustaCony Circle; northern end of SR 17 concurrency; southern end of SR 9 concurrency; western terminus of SR 105
65.01–
65.03
104.62–
104.66
   US 202 east (North Belfast Avenue) / SR 9 north – ChinaNorthern end of US 202 / SR 9 concurrency
65.67–
65.69
105.69–
105.72
   SR 3 to I‑95 – Augusta Civic Center Drive, Portland, Belfast
Winslow80.87130.15  SR 137 (Carter Memorial Drive) – Oakland, China
81.81131.66 
  SR 137 Bus. east (China Road) – China
Southern end of SR 137 Bus. Concurrency
81.94131.87  SR 100A north (Halifax Street) – Clinton, BurnhamSouthern terminus of SR 100A
Waterville82.61–
82.67
132.95–
133.04
  
   SR 137 Bus. west (Spring Street) to I‑95 south / Water Street – Oakland
Northern end of SR 137 Bus. Concurrency
83.06133.67   SR 11 south / SR 104 (Elm Street / Main Street) – Oakland, SidneySouthern end of SR 11 concurrency; intersection with SR 104 in southbound lanes only
SomersetFairfield86.10–
86.14
138.56–
138.63
    US 201 north / SR 139 west (Upper Main Street) to I‑95 / Lawrence AvenueNorthern end of US 201 concurrency; southern end of SR 139 concurrency
KennebecBenton88.25–
88.28
142.02–
142.07
  SR 100A south (Clinton Avenue) – WinslowNorthern terminus of SR 100A
88.33142.15  SR 139 east (Sebasticook Bridge Road) – Albion, UnityNorthern end of SR 139 concurrency
Waldo
No major junctions
SomersetPittsfield105.54169.85  SR 69 east (Hunnewell Avenue) – DetroitWestern terminus of SR 69
105.61169.96   SR 152 north (Somerset Avenue) to I‑95 – HartlandSouthern terminus of SR 152
Palmyra109.59176.37  SR 220 south (Main Street) – DetroitNorthern terminus of SR 220
111.78–
112.07
179.89–
180.36
  I‑95 – Bangor, WatervilleExit 157 (I-95)
PenobscotNewport112.27–
112.37
180.68–
180.84
    US 2 west (Main Street) / SR 7 north / SR 11 north (Moosehead Trail) – Skowhegan, Sugarloaf, DexterSouthern end of US 2 / SR 7 concurrencies; northern end of SR 11 concurrency
115.86186.46   SR 7 south (Roussin Road) to I‑95 / Stetson Road – Dixmont, PlymouthNorthern end of SR 7 concurrency
Etna121.44195.44  SR 143 (Lakins Road / Dixmont Road) – Stetson, Dixmont
Carmel124.71200.70   SR 69 (Plymouth Road / Hampden Road) to I‑95 – Winterport
Bangor137.19–
137.30
220.79–
220.96
    I‑395 east to I‑95 / SR 15 / Odlin Road – Newport, Orono, Bangor, BrewerWestern terminus of I-395
138.28–
138.43
222.54–
222.78
   I‑95 / SR 15 – Newport, Augusta, Orono, HoultonExit 183 (I-95)
139.62224.70  SR 222 west (Union Street)Eastern terminus of SR 222
139.93225.20  US 2 east (State Street) / Central Street / Main Street
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

    Alternate routeEdit

     

    State Route 100A
    LocationWinslowBenton
    Length5.16 mi[1] (8.30 km)
    Existed1954–present

    State Route 100A (SR 100A) is a 5.2-mile (8.4 km) alternate route of SR 100 running between the towns of Winslow and Benton.[3]

    Route 100A's alignment was formerly part of SR 32, before SR 32 was truncated in 1954[4] to end at SR 137 Business, near its intersection with US 201/SR 100 just south of SR 100A's current terminus. The old alignment, which connected to SR 100 at both ends, was redesignated as SR 100A (as a bypass of SR 100's alignment in Winslow and Benton).

    ReferencesEdit

    1. ^ a b c "Maine DOT Map Viewer". Maine Office of GIS. Retrieved September 16, 2017.
    2. ^ Google (September 17, 2017). "Maine State Route 100" (Map). Google Maps. Google. Retrieved September 17, 2017.
    3. ^ Google (September 17, 2017). "Maine State Route 100A" (Map). Google Maps. Google. Retrieved September 17, 2017.
    4. ^ Floodgap Roadgap's RoadsAroundME: Maine State Route 100A Archived 2012-03-12 at Archive.today[self-published source?]

    External linksEdit