US Bridges

I-275 NB (SR-93) over Bus 41 (SR-685)

Fair

Hillsborough County, Florida · 0.2 MI E Hillsboro River · Structure no. 100110

Built
1964
61 years old, rebuilt 2006
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,093 ft
15 main spans
Daily traffic
114,000
2022 count
Owner
State
State Highway Agency

About this bridge

I-275 NB (SR-93) over Bus 41 (SR-685) is a prestressed concrete stringer/multi-beam or girder carrying I-275 NB (SR-93) over Bus 41 (SR-685) in Hillsborough County, Florida. It was built in 1964 and reconstructed in 2006, 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 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 114,000 vehicles a day, roughly 7% of them trucks, projected to reach 197,790 by 2044. The structure is 1,093 ft (333.2 m) long and 82 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)
CrossesBus 41 (SR-685)
Location0.2 MI E Hillsboro River
RouteInterstate 275
CountyHillsborough County
StateFlorida
Coordinates27.95648, -82.46093
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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans15
Design loadHS 20 + Mod
Structure length1,093 ft (333.2 m)
Longest span85 ft (25.8 m)
Deck width82 ft (25.1 m)
Roadway width79 ft (24.1 m)
Vertical clearance over deck18 ft (5.4 m)

Traffic and service

Average daily traffic114,000 (2022)
Projected traffic197,790 by 2044
Trucks7%
Lanes on structure5
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 Bus 41 (SR-685) built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2006.

What condition is I-275 NB (SR-93) over Bus 41 (SR-685) 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 July 2024.

How much traffic does I-275 NB (SR-93) over Bus 41 (SR-685) carry?

About 114,000 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is I-275 NB (SR-93) over Bus 41 (SR-685)?

The structure is 1,093 ft (333.2 m) long with a longest span of 85 ft (25.8 m) and a deck 82 ft wide.

Who owns I-275 NB (SR-93) over Bus 41 (SR-685)?

It is owned by the State Highway Agency.