US Bridges

SR 21 over Sweigoffer Creek

Good

Effingham County, Georgia · 1 MI S of Rincon · Structure no. 000000010300040

Built
1960
65 years old, rebuilt 1990
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
25 ft
4 main spans
Daily traffic
36,200
2024 count
Owner
State
State Highway Agency

About this bridge

SR 21 over Sweigoffer Creek is a concrete culvert carrying SR 21 over Sweigoffer Creek in Effingham County, Georgia. It was built in 1960 and reconstructed in 1990, so it is 65 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 36,200 vehicles a day, roughly 1% of them trucks, projected to reach 47,655 by 2031. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSR 21
CrossesSweigoffer Creek
Location1 MI S of Rincon
RouteState Highway 21
StateGeorgia
Coordinates32.26557, -81.2225
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating26.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length25 ft (7.6 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,200 (2024)
Projected traffic47,655 by 2031
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

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$226,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 21 over Sweigoffer Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1990.

What condition is SR 21 over Sweigoffer 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 March 2024.

How much traffic does SR 21 over Sweigoffer Creek carry?

About 36,200 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 21 over Sweigoffer Creek?

The structure is 25 ft (7.6 m) long with a longest span of 5 ft (1.5 m).

Who owns SR 21 over Sweigoffer Creek?

It is owned by the State Highway Agency.