US Bridges

I-75 NB (SR-93A) over US-92 (SR-600)

Good

Hillsborough County, Florida · 0.4MI South of I-4(SR400) · Structure no. 100415

Built
1983
42 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
189 ft
3 main spans
Daily traffic
83,500
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 NB (SR-93A) over US-92 (SR-600) is a prestressed concrete stringer/multi-beam or girder carrying I-75 NB (SR-93A) over US-92 (SR-600) in Hillsborough County, Florida. It was built in 1983, so it is 42 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 83,500 vehicles a day, roughly 11% of them trucks, projected to reach 104,375 by 2042. The structure is 189 ft (57.7 m) long and 68 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-75 NB (SR-93A)
CrossesUS-92 (SR-600)
Location0.4MI South of I-4(SR400)
RouteInterstate 75
CountyHillsborough County
StateFlorida
Coordinates27.99718, -82.32638
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length189 ft (57.7 m)
Longest span106 ft (32.3 m)
Deck width68 ft (20.6 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic83,500 (2023)
Projected traffic104,375 by 2042
Trucks11%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 NB (SR-93A) over US-92 (SR-600) built?

It was built in 1983, making it 42 years old in 2025.

What condition is I-75 NB (SR-93A) over US-92 (SR-600) in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does I-75 NB (SR-93A) over US-92 (SR-600) carry?

About 83,500 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is I-75 NB (SR-93A) over US-92 (SR-600)?

The structure is 189 ft (57.7 m) long with a longest span of 106 ft (32.3 m) and a deck 68 ft wide.

Who owns I-75 NB (SR-93A) over US-92 (SR-600)?

It is owned by the State Highway Agency.