US Bridges

SR 231 over Williamson Swamp Creek

Good

Washington County, Georgia · In Davisboro · Structure no. 000000030300210

Built
1976
49 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Concrete
Length
240 ft
6 main spans
Daily traffic
1,370
2024 count
Owner
State
State Highway Agency

About this bridge

SR 231 over Williamson Swamp Creek is a concrete tee beam carrying SR 231 over Williamson Swamp Creek in Washington County, Georgia. It was built in 1976, so it is 49 years old, older than the Georgia average of 47.5 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 1,370 vehicles a day, roughly 1% of them trucks, projected to reach 1,470 by 2032. The structure is 240 ft (73.2 m) long and 43 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesSR 231
CrossesWilliamson Swamp Creek
LocationIn Davisboro
RouteState Highway 231
StateGeorgia
Coordinates32.97576, -82.60981
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating34 US tons
Inventory rating24.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span40 ft (12.2 m)
Deck width43 ft (13 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,370 (2024)
Projected traffic1,470 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

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$1.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 231 over Williamson Swamp Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is SR 231 over Williamson Swamp 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 July 2023.

How much traffic does SR 231 over Williamson Swamp Creek carry?

About 1,370 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 231 over Williamson Swamp Creek?

The structure is 240 ft (73.2 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.

Who owns SR 231 over Williamson Swamp Creek?

It is owned by the State Highway Agency.