Maine State Route 109

State Route 109
Route information
Maintained by MaineDOT
Length	26.24 mi[1] (42.23 km)
Existed	1925–present
Major junctions
South end	US 1 / SR 9 in Wells
Major intersections	I-95 / Maine Turnpike in Wells SR 9 in Wells SR 4 / SR 4A in Sanford US 202 / SR 4A / SR 11 in Sanford SR 11 in Shapleigh
North end	NH 109 at the New Hampshire state line
Location
Country	United States
State	Maine
Counties	York
Highway system
Maine State Highway System Interstate US State Auto trails Lettered highways
← SR 108 → SR 110

State Route 109 (SR 109) is a state highway in the U.S. state of Maine. It is a 26.24-mile (42.23 km) regional route connecting the southern coastal area to inland areas to the north and west. Its southern terminus is at U.S. Route 1 and State Route 9 in Wells and its northern terminus is at the New Hampshire border in Acton, where it connects to New Hampshire Route 109. The highway runs through York County; major towns and cities along the length of SR 109 include Wells and Sanford.