US Bridges

I-75 SB (SR-93) over Nc RR

Good

Columbia County, Florida · 1.9 Mi. N of US-90 · Structure no. 290062

Built
1962
63 years old, rebuilt 1995
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
177 ft
3 main spans
Daily traffic
24,472
2022 count
Owner
State
State Highway Agency

About this bridge

I-75 SB (SR-93) over Nc RR is a prestressed concrete stringer/multi-beam or girder carrying I-75 SB (SR-93) over Nc RR in Columbia County, Florida. It was built in 1962 and reconstructed in 1995, 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 24,472 vehicles a day, roughly 31% of them trucks, projected to reach 42,459 by 2044. The structure is 177 ft (53.9 m) long and 59 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-75 SB (SR-93)
CrossesNc RR
Location1.9 Mi. N of US-90
RouteInterstate 75
CountyColumbia County
StateFlorida
Coordinates30.20499, -82.70157
Functional classUrban 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 inspectionSeptember 2023
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 rating66.7 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length177 ft (53.9 m)
Longest span59 ft (18 m)
Deck width59 ft (17.9 m)
Roadway width56 ft (17 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,472 (2022)
Projected traffic42,459 by 2044
Trucks31%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 (SR-93) over Nc RR built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1995.

What condition is I-75 SB (SR-93) over Nc RR 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 September 2023.

How much traffic does I-75 SB (SR-93) over Nc RR carry?

About 24,472 vehicles per day (2022 count), of which roughly 31% are trucks.

How long is I-75 SB (SR-93) over Nc RR?

The structure is 177 ft (53.9 m) long with a longest span of 59 ft (18 m) and a deck 59 ft wide.

Who owns I-75 SB (SR-93) over Nc RR?

It is owned by the State Highway Agency.