US Bridges

N. CR 231 over Swift Creek

Good

Union County, Florida · 3.7 Mi. North of SR 100 · Structure no. 394005

Built
2000
25 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
47 ft
3 main spans
Daily traffic
700
2023 count
Owner
County
County Highway Agency

About this bridge

N. CR 231 over Swift Creek is a concrete culvert carrying N. CR 231 over Swift Creek in Union County, Florida. It was built in 2000, so it is 25 years old, younger 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 700 vehicles a day, roughly 7% of them trucks, projected to reach 1,214 by 2042. The structure is 47 ft (14.3 m) long. If it were closed, the detour would be 4.3 mi (7 km).

Location

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CarriesN. CR 231
CrossesSwift Creek
Location3.7 Mi. North of SR 100
RouteCounty Highway 231
CountyUnion County
StateFlorida
Coordinates30.08219, -82.36072
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82 US tons
Inventory rating49.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length47 ft (14.3 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic700 (2023)
Projected traffic1,214 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed4.3 mi (7 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 N. CR 231 over Swift Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is N. CR 231 over Swift Creek 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 April 2023.

How much traffic does N. CR 231 over Swift Creek carry?

About 700 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is N. CR 231 over Swift Creek?

The structure is 47 ft (14.3 m) long with a longest span of 15 ft (4.6 m).

Who owns N. CR 231 over Swift Creek?

It is owned by the County Highway Agency.