US Bridges

I-275 NB to SR-56 over I-75

Good

Hillsborough County, Florida · 2 Miles South of SR-54 · Structure no. 100833

Built
2010
15 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
468 ft
2 main spans
Daily traffic
12,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-275 NB to SR-56 over I-75 is a steel continuous stringer/multi-beam or girder carrying I-275 NB to SR-56 over I-75 in Hillsborough County, Florida. It was built in 2010, so it is 15 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 12,000 vehicles a day, roughly 13% of them trucks, projected to reach 20,820 by 2042. The structure is 468 ft (142.7 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI-275 NB to SR-56
CrossesI-75
Location2 Miles South of SR-54
RouteInterstate 275
CountyHillsborough County
StateFlorida
Coordinates28.16606, -82.39501
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 alignment7: Better than present minimum criteria
Operating rating52.6 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length468 ft (142.7 m)
Longest span250 ft (76.2 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2023)
Projected traffic20,820 by 2042
Trucks13%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 SR-56 over I-75 built?

It was built in 2010, making it 15 years old in 2025.

What condition is I-275 NB to SR-56 over I-75 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-275 NB to SR-56 over I-75 carry?

About 12,000 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is I-275 NB to SR-56 over I-75?

The structure is 468 ft (142.7 m) long with a longest span of 250 ft (76.2 m) and a deck 30 ft wide.

Who owns I-275 NB to SR-56 over I-75?

It is owned by the State Highway Agency.