US Bridges

I-10 EB (SR-8) over Suwannee River Relief

Fair

Madison County, Florida · 0.4 Mi.W.Of Suwannee Riv. · Structure no. 350053

Built
1971
54 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
480 ft
9 main spans
Daily traffic
13,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-10 EB (SR-8) over Suwannee River Relief is a prestressed concrete stringer/multi-beam or girder carrying I-10 EB (SR-8) over Suwannee River Relief in Madison County, Florida. It was built in 1971, so it is 54 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 13,000 vehicles a day, roughly 25% of them trucks, projected to reach 22,555 by 2045. The structure is 480 ft (146.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-10 EB (SR-8)
CrossesSuwannee River Relief
Location0.4 Mi.W.Of Suwannee Riv.
RouteInterstate 10
CountyMadison County
StateFlorida
Coordinates30.35902, -83.20073
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating79.1 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20 + Mod
Structure length480 ft (146.3 m)
Longest span53 ft (16.2 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2023)
Projected traffic22,555 by 2045
Trucks25%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
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-10 EB (SR-8) over Suwannee River Relief built?

It was built in 1971, making it 54 years old in 2025.

What condition is I-10 EB (SR-8) over Suwannee River Relief 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 August 2024.

How much traffic does I-10 EB (SR-8) over Suwannee River Relief carry?

About 13,000 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is I-10 EB (SR-8) over Suwannee River Relief?

The structure is 480 ft (146.3 m) long with a longest span of 53 ft (16.2 m) and a deck 42 ft wide.

Who owns I-10 EB (SR-8) over Suwannee River Relief?

It is owned by the State Highway Agency.