US Bridges

I-10 EB (SR-8) over US-129 (SR-51)

Good

Suwannee County, Florida · I-10 EB/US-129 · Structure no. 370029

Built
1968
57 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
162 ft
2 main spans
Daily traffic
12,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-10 EB (SR-8) over US-129 (SR-51) is a prestressed concrete stringer/multi-beam or girder carrying I-10 EB (SR-8) over US-129 (SR-51) in Suwannee County, Florida. It was built in 1968, so it is 57 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 12,000 vehicles a day, roughly 27% of them trucks, projected to reach 20,820 by 2045. The structure is 162 ft (49.4 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-10 EB (SR-8)
CrossesUS-129 (SR-51)
LocationI-10 EB/US-129
RouteInterstate 10
CountySuwannee County
StateFlorida
Coordinates30.33055, -82.96265
Functional classRural 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 inspectionJuly 2024
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 rating64.2 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length162 ft (49.4 m)
Longest span81 ft (24.7 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2023)
Projected traffic20,820 by 2045
Trucks27%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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-10 EB (SR-8) over US-129 (SR-51) built?

It was built in 1968, making it 57 years old in 2025.

What condition is I-10 EB (SR-8) over US-129 (SR-51) 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 July 2024.

How much traffic does I-10 EB (SR-8) over US-129 (SR-51) carry?

About 12,000 vehicles per day (2023 count), of which roughly 27% are trucks.

How long is I-10 EB (SR-8) over US-129 (SR-51)?

The structure is 162 ft (49.4 m) long with a longest span of 81 ft (24.7 m) and a deck 43 ft wide.

Who owns I-10 EB (SR-8) over US-129 (SR-51)?

It is owned by the State Highway Agency.