US Bridges

I-10 WB (SR-8) over I-75 (SR-93)

Good

Columbia County, Florida · I-10 WB over I-75 · Structure no. 290065

Built
1962
63 years old, rebuilt 1989
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
294 ft
4 main spans
Daily traffic
13,000
2022 count
Owner
State
State Highway Agency

About this bridge

I-10 WB (SR-8) over I-75 (SR-93) is a prestressed concrete stringer/multi-beam or girder carrying I-10 WB (SR-8) over I-75 (SR-93) in Columbia County, Florida. It was built in 1962 and reconstructed in 1989, so it is 63 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 13,000 vehicles a day, roughly 28% of them trucks, projected to reach 22,555 by 2044. The structure is 294 ft (89.6 m) long and 55 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-10 WB (SR-8)
CrossesI-75 (SR-93)
LocationI-10 WB over I-75
RouteInterstate 10
CountyColumbia County
StateFlorida
Coordinates30.26774, -82.75492
Functional classRural 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 inspectionNovember 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 rating80.5 US tons
Inventory rating48.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length294 ft (89.6 m)
Longest span102 ft (31.1 m)
Deck width55 ft (16.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2022)
Projected traffic22,555 by 2044
Trucks28%
Lanes on structure3
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-10 WB (SR-8) over I-75 (SR-93) built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1989.

What condition is I-10 WB (SR-8) over I-75 (SR-93) 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 November 2023.

How much traffic does I-10 WB (SR-8) over I-75 (SR-93) carry?

About 13,000 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is I-10 WB (SR-8) over I-75 (SR-93)?

The structure is 294 ft (89.6 m) long with a longest span of 102 ft (31.1 m) and a deck 55 ft wide.

Who owns I-10 WB (SR-8) over I-75 (SR-93)?

It is owned by the State Highway Agency.