US Bridges

I-275 NB to I-75NB over I-75 (SR-93)

Fair

Hillsborough County, Florida · 2MI S of SR-54 · Structure no. 100411

Built
1982
43 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
448 ft
4 main spans
Daily traffic
66,500
2023 count
Owner
State
State Highway Agency

About this bridge

I-275 NB to I-75NB over I-75 (SR-93) is a steel continuous stringer/multi-beam or girder carrying I-275 NB to I-75NB over I-75 (SR-93) in Hillsborough County, Florida. It was built in 1982, so it is 43 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 66,500 vehicles a day, roughly 7% of them trucks, projected to reach 115,378 by 2042. The structure is 448 ft (136.7 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesI-275 NB to I-75NB
CrossesI-75 (SR-93)
Location2MI S of SR-54
RouteInterstate 275
CountyHillsborough County
StateFlorida
Coordinates28.16633, -82.39506
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 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 rating62.6 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length448 ft (136.7 m)
Longest span150 ft (45.7 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic66,500 (2023)
Projected traffic115,378 by 2042
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 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-275 NB to I-75NB over I-75 (SR-93) built?

It was built in 1982, making it 43 years old in 2025.

What condition is I-275 NB to I-75NB over I-75 (SR-93) in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does I-275 NB to I-75NB over I-75 (SR-93) carry?

About 66,500 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is I-275 NB to I-75NB over I-75 (SR-93)?

The structure is 448 ft (136.7 m) long with a longest span of 150 ft (45.7 m) and a deck 43 ft wide.

Who owns I-275 NB to I-75NB over I-75 (SR-93)?

It is owned by the State Highway Agency.