US Bridges

I 275 SB over Central & Henderson Ave

Fair

Hillsborough County, Florida · 0.4MI S I-4/ I-275 Intchg · Structure no. 100139

Built
1963
62 years old, rebuilt 1966
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
298 ft
6 main spans
Daily traffic
118,000
2024 count
Owner
State
State Highway Agency

About this bridge

I 275 SB over Central & Henderson Ave is a prestressed concrete stringer/multi-beam or girder carrying I 275 SB over Central & Henderson Ave in Hillsborough County, Florida. It was built in 1963 and reconstructed in 1966, 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 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 118,000 vehicles a day, roughly 7% of them trucks, projected to reach 204,730 by 2044. The structure is 298 ft (90.8 m) long and 54 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI 275 SB
CrossesCentral & Henderson Ave
Location0.4MI S I-4/ I-275 Intchg
RouteInterstate 275
CountyHillsborough County
StateFlorida
Coordinates27.95923, -82.4552
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.9 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length298 ft (90.8 m)
Longest span67 ft (20.5 m)
Deck width54 ft (16.6 m)
Roadway width50 ft (15.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic118,000 (2024)
Projected traffic204,730 by 2044
Trucks7%
Lanes on structure4
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 SB over Central & Henderson Ave built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1966.

What condition is I 275 SB over Central & Henderson Ave 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 August 2024.

How much traffic does I 275 SB over Central & Henderson Ave carry?

About 118,000 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is I 275 SB over Central & Henderson Ave?

The structure is 298 ft (90.8 m) long with a longest span of 67 ft (20.5 m) and a deck 54 ft wide.

Who owns I 275 SB over Central & Henderson Ave?

It is owned by the State Highway Agency.