The south end of State Route 100 is at the intersection of Forest Avenue and Park Avenue in downtown Portland, the same place U.S. Route 302 ends.
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However, signage indicates the end of the route to be at the intersection of Minot Avenue and Washington Street, which carries U.S. Route 202, Route 4, and Route 100.
a new 1.6-mile (2.6 km) bypass, State Route 26A, was completed and put into service to alleviate congestion in the center of Gray Village where U.S. Route 202, SR 4, SR 26, SR 100, and SR 115 intersect.
This includes the Midcoast Bureau (on