Florida State Road 45
A major north-south highway extending almost the entire length of the Florida peninsula, State Road 45 is the unsigned Florida Department of Transportation designation of most of the current U.S. [Route 41 (Florida)|U.S. Route 41] in Florida. The southern terminus of SR 45 is an intersection with SR 90 in downtown Naples; the northern terminus is an intersection with U.S. [Route 441 (Florida)|US 441] in High [Springs, Florida|High Springs]. South of Causeway Boulevard near Tampa, SR 45 is also known as Tamiami Trail.
South and east of Naples, US 41 turns eastward as SR 90 as the Tamiami Trail crosses the Everglades on its way to Miami; north of High Springs, US 41 overlaps US 441 until their split in Lake City.
Separations of US 41 and SR 45 between SR 45 termini
SR 45 away from US 41
- Business US 41 - Venice
- Business US 41 - Bradenton to Memphis
- Business US 41 - Rockport to Ybor City
- 60 (Florida)|SR 60] - Tampa to Ybor City
- SR 45 - Tampa
US 41 away from SR 45
- SR 45A - Venice
- U.S. [Route 301 (Florida)|US 301] - Bradenton, concurrent with SR 55
- SR 55 - Bradenton to Memphis
- SR 599 - Rockport to Tampa
- US 92 - Tampa
Additional concurrencies with SR 45
- SR 45-55 - Memphis
- U.S. [Highway 41 (Florida)|US 41]/SR 45-60 - Ybor City
- U.S. [Highway 41 (Florida)|US 41]/SR 45-700 (Florida)|700] - Brooksville
- US 41/State [Road 44 (Florida)|SR 44]-45 - Inverness
- U.S. [Route 27 Alternate (Florida)|Alt US 27]-US 41/SR 45-500 (Florida)|500] - Williston
- US 27-US 41/SR 45 - Williston to High Springs