Maine State Route 100

State Route 100 marker
State Route 100
Map
Route of SR 100 highlighted in red, SR 100A in blue
Route information
Maintained by MaineDOT
Length139.93 mi[1] (225.20 km)
Existed1925, 1934 (current routing)[2]–present
Major junctions
South endForest Avenue / Cumberland Avenue in Portland
Major intersections
North end US 2 in Bangor
Location
CountryUnited States
StateMaine
CountiesCumberland, Androscoggin, Kennebec, Waldo, Somerset, Penobscot
Highway system
SR 99 SR 101

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

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 (as Forest Avenue) 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.[3]

  1. ^ "Maine DOT Map Viewer". Maine Office of GIS. Retrieved September 16, 2017.
  2. ^ "Bangor-Portland Will Be Linked By Route 100". The Bangor Daily News. July 20, 1934. p. 25. Retrieved July 10, 2024 – via Newspapers.com. Open access icon
  3. ^ "Maine State Route 100" (Map). Google Maps. Retrieved September 17, 2017.