US Bridges

I-275 NB (SR-93) over 7th Avenue

Good

Hillsborough County, Florida · 0.5 MI E of US-41 Bus · Structure no. 100142

Built
1964
61 years old, rebuilt 2005
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
165 ft
3 main spans
Daily traffic
107,250
2022 count
Owner
State
State Highway Agency

About this bridge

I-275 NB (SR-93) over 7th Avenue is a prestressed concrete stringer/multi-beam or girder carrying I-275 NB (SR-93) over 7th Avenue in Hillsborough County, Florida. It was built in 1964 and reconstructed in 2005, so it is 61 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 107,250 vehicles a day, roughly 7% of them trucks, projected to reach 186,079 by 2044. The structure is 165 ft (50.2 m) long and 100 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-275 NB (SR-93)
Crosses7th Avenue
Location0.5 MI E of US-41 Bus
RouteInterstate 275
CountyHillsborough County
StateFlorida
Coordinates27.96042, -82.4542
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.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.9 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length165 ft (50.2 m)
Longest span64 ft (19.4 m)
Deck width100 ft (30.5 m)
Roadway width95 ft (29 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic107,250 (2022)
Projected traffic186,079 by 2044
Trucks7%
Lanes on structure7
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-275 NB (SR-93) over 7th Avenue built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2005.

What condition is I-275 NB (SR-93) over 7th Avenue 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 August 2024.

How much traffic does I-275 NB (SR-93) over 7th Avenue carry?

About 107,250 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is I-275 NB (SR-93) over 7th Avenue?

The structure is 165 ft (50.2 m) long with a longest span of 64 ft (19.4 m) and a deck 100 ft wide.

Who owns I-275 NB (SR-93) over 7th Avenue?

It is owned by the State Highway Agency.