US Bridges

SR 57 over Granny Branch

Good

Long County, Georgia · 8 MI SE of Ludowici · Structure no. 000000018300200

Built
1950
75 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
23 ft
3 main spans
Daily traffic
1,700
2024 count
Owner
State
State Highway Agency

About this bridge

SR 57 over Granny Branch is a concrete culvert carrying SR 57 over Granny Branch in Long County, Georgia. It was built in 1950, so it is 75 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 1,700 vehicles a day, roughly 16% of them trucks, projected to reach 2,445 by 2032. The structure is 23 ft (7 m) long. If it were closed, the detour would be 26.7 mi (43 km).

CarriesSR 57
CrossesGranny Branch
Location8 MI SE of Ludowici
RouteState Highway 57
StateGeorgia
Coordinates31.62664, -81.65421
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 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 spans3
Design loadH 15
Structure length23 ft (7 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2024)
Projected traffic2,445 by 2032
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$135,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 57 over Granny Branch built?

It was built in 1950, making it 75 years old in 2025.

What condition is SR 57 over Granny Branch 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 January 2024.

How much traffic does SR 57 over Granny Branch carry?

About 1,700 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is SR 57 over Granny Branch?

The structure is 23 ft (7 m) long with a longest span of 7 ft (2.1 m).

Who owns SR 57 over Granny Branch?

It is owned by the State Highway Agency.