US Bridges

I-75 NB (SR-93) over Santa Fe River

Fair

Columbia County, Florida · I-75 NB / Santa Fe River · Structure no. 290087

Built
1963
62 years old, rebuilt 1996
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
360 ft
9 main spans
Daily traffic
29,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-75 NB (SR-93) over Santa Fe River is a prestressed concrete stringer/multi-beam or girder carrying I-75 NB (SR-93) over Santa Fe River in Columbia County, Florida. It was built in 1963 and reconstructed in 1996, 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 5 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 29,000 vehicles a day, roughly 30% of them trucks, projected to reach 50,315 by 2045. The structure is 360 ft (109.7 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-75 NB (SR-93)
CrossesSanta Fe River
LocationI-75 NB / Santa Fe River
RouteInterstate 75
CountyColumbia County
StateFlorida
Coordinates29.92667, -82.55861
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.7 US tons
Inventory rating38.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20 + Mod
Structure length360 ft (109.7 m)
Longest span40 ft (12.2 m)
Deck width59 ft (18 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,000 (2023)
Projected traffic50,315 by 2045
Trucks30%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-75 NB (SR-93) over Santa Fe River built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1996.

What condition is I-75 NB (SR-93) over Santa Fe River 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 October 2024.

How much traffic does I-75 NB (SR-93) over Santa Fe River carry?

About 29,000 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is I-75 NB (SR-93) over Santa Fe River?

The structure is 360 ft (109.7 m) long with a longest span of 40 ft (12.2 m) and a deck 59 ft wide.

Who owns I-75 NB (SR-93) over Santa Fe River?

It is owned by the State Highway Agency.