There is no current State Route 45 in the U.S. state of Alabama. Alabama Route 45 may refer to:
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U.S. Route 45 in Alabama
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Alabama State Route 143
State Route 143 (SR 143) is a north–south state highway in the central part of the U.S. state of Alabama, extending north from Interstate 65 (I-65) and U.S. Route 82 (US 82) northwest of Montgomery to US 31 n ...
, numbered State Route 45 prior to 1957, renumbered to avoid confusion with U.S. Route 45
{{Road disambiguation