US Bridges

I-75 SB (SR-93A) over Ramp I-75 NB to SR-582WB

Good

Hillsborough County, Florida · I-75&SR-582 Interchange · Structure no. 100407

Built
1985
40 years old, rebuilt 2012
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
152 ft
3 main spans
Daily traffic
64,500
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 SB (SR-93A) over Ramp I-75 NB to SR-582WB is a prestressed concrete stringer/multi-beam or girder carrying I-75 SB (SR-93A) over Ramp I-75 NB to SR-582WB in Hillsborough County, Florida. It was built in 1985 and reconstructed in 2012, so it is 40 years old, younger 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 64,500 vehicles a day, roughly 15% of them trucks, projected to reach 111,908 by 2042. The structure is 152 ft (46.3 m) long and 71 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-75 SB (SR-93A)
CrossesRamp I-75 NB to SR-582WB
LocationI-75&SR-582 Interchange
RouteInterstate 75
CountyHillsborough County
StateFlorida
Coordinates28.05583, -82.35401
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 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 rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length152 ft (46.3 m)
Longest span79 ft (24.2 m)
Deck width71 ft (21.6 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic64,500 (2023)
Projected traffic111,908 by 2042
Trucks15%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 SB (SR-93A) over Ramp I-75 NB to SR-582WB built?

It was built in 1985, making it 40 years old in 2025. It was reconstructed in 2012.

What condition is I-75 SB (SR-93A) over Ramp I-75 NB to SR-582WB 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 November 2023.

How much traffic does I-75 SB (SR-93A) over Ramp I-75 NB to SR-582WB carry?

About 64,500 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is I-75 SB (SR-93A) over Ramp I-75 NB to SR-582WB?

The structure is 152 ft (46.3 m) long with a longest span of 79 ft (24.2 m) and a deck 71 ft wide.

Who owns I-75 SB (SR-93A) over Ramp I-75 NB to SR-582WB?

It is owned by the State Highway Agency.