US Bridges

I10 SR8 over CR257

Fair

Jefferson County, Florida · 1.5MILES South of Aucilla · Structure no. 540013

Built
1973
52 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
235 ft
4 main spans
Daily traffic
10,250
2022 count
Owner
State
State Highway Agency

About this bridge

I10 SR8 over CR257 is a prestressed concrete stringer/multi-beam or girder carrying I10 SR8 over CR257 in Jefferson County, Florida. It was built in 1973, so it is 52 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 10,250 vehicles a day, roughly 32% of them trucks, projected to reach 17,784 by 2044. The structure is 235 ft (71.7 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesI10 SR8
CrossesCR257
Location1.5MILES South of Aucilla
RouteInterstate 10
CountyJefferson County
StateFlorida
Coordinates30.45547, -83.76263
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.5 US tons
Inventory rating51.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length235 ft (71.7 m)
Longest span68 ft (20.8 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,250 (2022)
Projected traffic17,784 by 2044
Trucks32%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 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 I10 SR8 over CR257 built?

It was built in 1973, making it 52 years old in 2025.

What condition is I10 SR8 over CR257 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 November 2023.

How much traffic does I10 SR8 over CR257 carry?

About 10,250 vehicles per day (2022 count), of which roughly 32% are trucks.

How long is I10 SR8 over CR257?

The structure is 235 ft (71.7 m) long with a longest span of 68 ft (20.8 m) and a deck 43 ft wide.

Who owns I10 SR8 over CR257?

It is owned by the State Highway Agency.