US Bridges

Causeway Blvd over I-75 (SR-93A)

Good

Hillsborough County, Florida · 1.3MI South of SR-60 · Structure no. 100497

Built
1985
40 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
738 ft
5 main spans
Daily traffic
26,000
2023 count
Owner
State
State Highway Agency

About this bridge

Causeway Blvd over I-75 (SR-93A) is a steel continuous box beam or girders - single or spread carrying Causeway Blvd over I-75 (SR-93A) in Hillsborough County, Florida. It was built in 1985, so it is 40 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 26,000 vehicles a day, roughly 9% of them trucks, projected to reach 45,110 by 2042. The structure is 738 ft (224.8 m) long and 118 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCauseway Blvd
CrossesI-75 (SR-93A)
Location1.3MI South of SR-60
RouteCounty Highway 676
CountyHillsborough County
StateFlorida
Coordinates27.92301, -82.33292
Functional classUrban Collector

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 inspectionOctober 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 alignment8: Equal to present desirable criteria
Operating rating80.7 US tons
Inventory rating39 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length738 ft (224.8 m)
Longest span188 ft (57.3 m)
Deck width118 ft (36 m)
Roadway width115 ft (35.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,000 (2023)
Projected traffic45,110 by 2042
Trucks9%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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 Causeway Blvd over I-75 (SR-93A) built?

It was built in 1985, making it 40 years old in 2025.

What condition is Causeway Blvd over I-75 (SR-93A) 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 October 2023.

How much traffic does Causeway Blvd over I-75 (SR-93A) carry?

About 26,000 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Causeway Blvd over I-75 (SR-93A)?

The structure is 738 ft (224.8 m) long with a longest span of 188 ft (57.3 m) and a deck 118 ft wide.

Who owns Causeway Blvd over I-75 (SR-93A)?

It is owned by the State Highway Agency.