US Bridges

SR 57 over Big Bay

Good

Long County, Georgia · 13 MI SE of Ludowici · Structure no. 000000018300190

Built
1950
75 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
81 ft
19 main spans
Daily traffic
2,470
2024 count
Owner
State
State Highway Agency

About this bridge

SR 57 over Big Bay is a concrete culvert carrying SR 57 over Big Bay 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 2,470 vehicles a day, roughly 1% of them trucks, projected to reach 2,310 by 2032. The structure is 81 ft (24.7 m) long. If it were closed, the detour would be 26.7 mi (43 km).

CarriesSR 57
CrossesBig Bay
Location13 MI SE of Ludowici
RouteState Highway 57
StateGeorgia
Coordinates31.58597, -81.58045
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 spans19
Design loadH 15
Structure length81 ft (24.7 m)
Longest span3 ft (0.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,470 (2024)
Projected traffic2,310 by 2032
Trucks1%
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$475,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 57 over Big Bay built?

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

What condition is SR 57 over Big Bay 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 Big Bay carry?

About 2,470 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 57 over Big Bay?

The structure is 81 ft (24.7 m) long with a longest span of 3 ft (0.9 m).

Who owns SR 57 over Big Bay?

It is owned by the State Highway Agency.