US Bridges

I-10 EB SR-8 over Aucilla River

Fair

Madison County, Florida · At Jefferson Co. Line · Structure no. 350055

Built
1972
53 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
450 ft
9 main spans
Daily traffic
12,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-10 EB SR-8 over Aucilla River is a prestressed concrete stringer/multi-beam or girder carrying I-10 EB SR-8 over Aucilla River in Madison County, Florida. It was built in 1972, so it is 53 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 12,000 vehicles a day, roughly 26% of them trucks, projected to reach 20,820 by 2045. The structure is 450 ft (137.2 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-10 EB SR-8
CrossesAucilla River
LocationAt Jefferson Co. Line
RouteInterstate 10
CountyMadison County
StateFlorida
Coordinates30.44529, -83.72444
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20 + Mod
Structure length450 ft (137.2 m)
Longest span50 ft (15.2 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2023)
Projected traffic20,820 by 2045
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was I-10 EB SR-8 over Aucilla River built?

It was built in 1972, making it 53 years old in 2025.

What condition is I-10 EB SR-8 over Aucilla 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 January 2025.

How much traffic does I-10 EB SR-8 over Aucilla River carry?

About 12,000 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is I-10 EB SR-8 over Aucilla River?

The structure is 450 ft (137.2 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.

Who owns I-10 EB SR-8 over Aucilla River?

It is owned by the State Highway Agency.