Interstate 375 Florida
Interstate 375 (North Bay Drive) is the northern freeway spur connecting I-275 with Downtown St. Petersburg. One-tenth of a mile shorter than its southern counterpart (I-175), I-375 is the shortest designated Interstate within Florida. State Road 592 runs along the entire length of North Bay Drive east to U.S. 19 Alternate and SR 595 (4th Avenue North).
Interstate 375 was built between 1977 and 1979 in two phases. The first completed section opened to traffic on January 17, 1978. The remaining portion of the 1.34-mile long freeway was completed in January 1979.1 The I-375 designation was formally added to the Interstate system in November 1982.2 A ramp stub at the west end alludes to a previously proposed connection with 20th Street North.
- West End –
- East End – 4th Avenue North
- Mileage – 1.34
- Cities – St. Petersburg
Source: December 31, 2017 Interstate Route Log and Finders List
I-375 Annual Average Daily Traffic (AADT)
|Vehicles per day||Location|
|31,000||Between I-275 & MLK Jr. St. N.|
|22,500||Between MLK Jr. St. N. & 8th St. N.|
|9,900||Between 8th St. N. & 4th St. N.|
Source: FDOT Florida Traffic Online (2017)
West End – St. Petersburg
East End / 4th Avenue North – location
Florida’s Interstates: A Half-Century of Progress.Florida Department of Transportation, web site.
- American Association of State Highway and Transportation Officials (AASHTO) Route Numbering Committee Meeting, November 19, 1982 (document).
Page updated August 22, 2014.