US Bridges

CR 280 over Williams Slough

Fair

Jackson County, Florida · 4.3 Miles East of SR 71 · Structure no. 530084

Built
1960
65 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
1,300
2023 count
Owner
County
County Highway Agency

About this bridge

CR 280 over Williams Slough is a concrete culvert carrying CR 280 over Williams Slough in Jackson County, Florida. It was built in 1960, so it is 65 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 1,300 vehicles a day, roughly 12% of them trucks, projected to reach 1,430 by 2043. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCR 280
CrossesWilliams Slough
Location4.3 Miles East of SR 71
RouteCounty Highway 280
CountyJackson County
StateFlorida
Coordinates30.68325, -85.12419
Functional classRural Minor Collector

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating44 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.3 m)
Longest span10 ft (3.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2023)
Projected traffic1,430 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 CR 280 over Williams Slough built?

It was built in 1960, making it 65 years old in 2025.

What condition is CR 280 over Williams Slough 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 October 2024.

How much traffic does CR 280 over Williams Slough carry?

About 1,300 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is CR 280 over Williams Slough?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3.1 m).

Who owns CR 280 over Williams Slough?

It is owned by the County Highway Agency.