Interstate 175

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This article is about the current highway in Florida. For the proposed highway in Georgia, see Interstate 175 (Georgia). For the proposed highway in Tennessee and Kentucky, see Interstate 175 (Kentucky–Tennessee).

Interstate 175 marker

Interstate 175
South Bay Drive
Route information
Auxiliary route of I-75
Maintained by FDOT
Length: 1.285 mi[1] (2.068 km)
Existed: 1980 – present
Major junctions
West end: I‑275 in St. Petersburg
East end: SR 594 / SR 687 in St. Petersburg
Counties: Pinellas
Highway system
SR 173 SR 187
SR 592 SR 594 I‑595

Interstate 175 (I-175) in St. Petersburg, Florida, also known as South Bay Drive, is a 1.3-mile-long spur route from Interstate 275 into downtown. It is also designated as the unsigned State Road 594. There is a sibling segment of freeway nearby designated as I-375.

Route description[edit]

The interstate begins at I-275 with Tropicana Field on the northeast side of the interchange, going east into downtown St. Petersburg, passing through eastbound exits with 9th Street South/8th Street South and 6th Street South before the interstate ends at 5th Avenue South next to an at-grade intersection with 4th Street South. Westbound, the interstate begins with a split from southbound 4th Street South just north of the 4th Street South/5th Avenue South intersection, and has no exits until the interchange with I-275. Along with its sister highway I-375, I-175 lacks exit numbers.[2]


The freeway was originally to have been a part of the former Pinellas Belt Expressway, which would have continued from its western terminus at I-275. The Pinellas Belt Expressway was budgeted in 1974 but was cancelled in the late 1970s due to local opposition.[3] I-175 was built between 1977 and 1980 and opened on April 23, 1980 at a cost of $5.5 million ($15.9 million in 2014 dollars).[4]

When I-75 was relocated in the late 1970s/early 1980s, five miles (8 km) of additional interstate became available; thus, the St. Petersburg feeder sections of I-175 and neighboring I-375 were upgraded to interstate status.[citation needed]

Exit list[edit]

The entire route is in St. Petersburg, Pinellas County. All exits are unnumbered.

mi[1] km Destinations Notes
0.000 0.000 I‑275 (SR 93) – Bradenton, Tampa Westbound exit and eastbound entrance; western terminus, I-275 exit 22
0.785 1.263 M.L. King Jr. Street South / 8th Street South Eastbound exit and westbound entrance
1.089 1.753 6th Street South Eastbound exit and westbound entrance
1.285 2.068 4th Street South East end of I-175; SR 594 continues one block (eastbound only)
1.372[5] 2.208 SR 687 north (3rd Street South) – Downtown St. Petersburg
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]


  1. ^ a b "Florida Department of Transportation Interchange Report" (PDF). Florida Department of Transportation. 2010-08-04. pp. 8–10. Retrieved 2010-11-02. 
  2. ^ "Florida's Interstate Exit Numbers". Florida Department of Transportation. Retrieved 2010-11-18. 
  3. ^ "Pinellas County Highways". Retrieved 5 October 2014. 
  4. ^ "I-175 at South-East highways". Retrieved 5 October 2014. 
  5. ^ FDOT straight line diagrams, accessed March 2014

External links[edit]

Route map: Bing