US Bridges

SR 4 - US 1 (sbl) over Big Satilla Creek

Good

Bacon County, Georgia · 6.5 MI N of Alma · Structure no. 000000000500070

Built
1953
72 years old, rebuilt 2001
Condition
Good
inspected July 2024
Type
Tee Beam
Concrete
Length
600 ft
20 main spans
Daily traffic
3,770
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4 - US 1 (sbl) over Big Satilla Creek is a concrete tee beam carrying SR 4 - US 1 (sbl) over Big Satilla Creek in Bacon County, Georgia. It was built in 1953 and reconstructed in 2001, so it is 72 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 3,770 vehicles a day, roughly 1% of them trucks, projected to reach 3,585 by 2031. The structure is 600 ft (182.9 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 4 - US 1 (sbl)
CrossesBig Satilla Creek
Location6.5 MI N of Alma
RouteU.S. Route 1
StateGeorgia
Coordinates31.65804, -82.43189
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32 US tons
Inventory rating19 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans20
Design loadHS 20
Structure length600 ft (182.9 m)
Longest span30 ft (9.1 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,770 (2024)
Projected traffic3,585 by 2031
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$3.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 4 - US 1 (sbl) over Big Satilla Creek built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 2001.

What condition is SR 4 - US 1 (sbl) over Big Satilla 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 2024.

How much traffic does SR 4 - US 1 (sbl) over Big Satilla Creek carry?

About 3,770 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 4 - US 1 (sbl) over Big Satilla Creek?

The structure is 600 ft (182.9 m) long with a longest span of 30 ft (9.1 m) and a deck 41 ft wide.

Who owns SR 4 - US 1 (sbl) over Big Satilla Creek?

It is owned by the State Highway Agency.