US Bridges

I-10 (SR-8) over Hixtown Swamp Equalizer

Fair

Madison County, Florida · 2 Mi. E. of US-221 · Structure no. 350941

Built
1973
52 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
20,200
2022 count
Owner
State
State Highway Agency

About this bridge

I-10 (SR-8) over Hixtown Swamp Equalizer is a concrete culvert carrying I-10 (SR-8) over Hixtown Swamp Equalizer in Madison 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 20,200 vehicles a day, roughly 26% of them trucks, projected to reach 35,047 by 2044. The structure is 23 ft (7 m) long. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesI-10 (SR-8)
CrossesHixtown Swamp Equalizer
Location2 Mi. E. of US-221
RouteInterstate 10
CountyMadison County
StateFlorida
Coordinates30.43109, -83.59473
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.7 US tons
Inventory rating52.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,200 (2022)
Projected traffic35,047 by 2044
Trucks26%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 (SR-8) over Hixtown Swamp Equalizer built?

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

What condition is I-10 (SR-8) over Hixtown Swamp Equalizer 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 March 2023.

How much traffic does I-10 (SR-8) over Hixtown Swamp Equalizer carry?

About 20,200 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is I-10 (SR-8) over Hixtown Swamp Equalizer?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m).

Who owns I-10 (SR-8) over Hixtown Swamp Equalizer?

It is owned by the State Highway Agency.