US Bridges

I-275 NB (SR-93) over Jefferson ST Ramps

Good

Hillsborough County, Florida · 0.4 MI E of Hills River · Structure no. 100138

Built
1963
62 years old, rebuilt 2005
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
265 ft
3 main spans
Daily traffic
107,250
2022 count
Owner
State
State Highway Agency

About this bridge

I-275 NB (SR-93) over Jefferson ST Ramps is a prestressed concrete stringer/multi-beam or girder carrying I-275 NB (SR-93) over Jefferson ST Ramps in Hillsborough County, Florida. It was built in 1963 and reconstructed in 2005, so it is 62 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 265 ft (80.8 m) long and 90 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI-275 NB (SR-93)
CrossesJefferson ST Ramps
Location0.4 MI E of Hills River
RouteInterstate 275
CountyHillsborough County
StateFlorida
Coordinates27.95699, -82.45659
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.2 US tons
Inventory rating39.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length265 ft (80.8 m)
Longest span94 ft (28.6 m)
Deck width90 ft (27.3 m)
Roadway width86 ft (26.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic107,250 (2022)
Projected traffic186,079 by 2044
Trucks7%
Lanes on structure5
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 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 Jefferson ST Ramps built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2005.

What condition is I-275 NB (SR-93) over Jefferson ST Ramps 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 Jefferson ST Ramps carry?

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

How long is I-275 NB (SR-93) over Jefferson ST Ramps?

The structure is 265 ft (80.8 m) long with a longest span of 94 ft (28.6 m) and a deck 90 ft wide.

Who owns I-275 NB (SR-93) over Jefferson ST Ramps?

It is owned by the State Highway Agency.