US Bridges

I-75 SB over CR-672 & Old Big Bend RD

Fair

Hillsborough County, Florida · 2 MI East of US-41 · Structure no. 100363

Built
1981
44 years old, rebuilt 2004
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
315 ft
5 main spans
Daily traffic
10,700
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 SB over CR-672 & Old Big Bend RD is a prestressed concrete stringer/multi-beam or girder carrying I-75 SB over CR-672 & Old Big Bend RD in Hillsborough County, Florida. It was built in 1981 and reconstructed in 2004, so it is 44 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 10,700 vehicles a day, roughly 15% of them trucks, projected to reach 92,822 by 2042. The structure is 315 ft (96.1 m) long and 67 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-75 SB
CrossesCR-672 & Old Big Bend RD
Location2 MI East of US-41
RouteInterstate 75
CountyHillsborough County
StateFlorida
Coordinates27.79187, -82.35684
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating37.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length315 ft (96.1 m)
Longest span78 ft (23.9 m)
Deck width67 ft (20.5 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,700 (2023)
Projected traffic92,822 by 2042
Trucks15%
Lanes on structure4
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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-75 SB over CR-672 & Old Big Bend RD built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2004.

What condition is I-75 SB over CR-672 & Old Big Bend RD 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-75 SB over CR-672 & Old Big Bend RD carry?

About 10,700 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is I-75 SB over CR-672 & Old Big Bend RD?

The structure is 315 ft (96.1 m) long with a longest span of 78 ft (23.9 m) and a deck 67 ft wide.

Who owns I-75 SB over CR-672 & Old Big Bend RD?

It is owned by the State Highway Agency.