US Bridges

SR 100 over Town Branch Trib

Good

Chattooga County, Georgia · S Summerville @ SR 114 · Structure no. 000000005500480

Built
1954
71 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
21 ft
3 main spans
Daily traffic
3,100
2024 count
Owner
State
State Highway Agency

About this bridge

SR 100 over Town Branch Trib is a concrete culvert carrying SR 100 over Town Branch Trib in Chattooga County, Georgia. It was built in 1954, so it is 71 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 3,100 vehicles a day, roughly 11% of them trucks, projected to reach 5,160 by 2031. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 100
CrossesTown Branch Trib
LocationS Summerville @ SR 114
RouteState Highway 100
StateGeorgia
Coordinates34.4702, -85.35423
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior 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 length21 ft (6.4 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2024)
Projected traffic5,160 by 2031
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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$123,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 100 over Town Branch Trib built?

It was built in 1954, making it 71 years old in 2025.

What condition is SR 100 over Town Branch Trib 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 April 2024.

How much traffic does SR 100 over Town Branch Trib carry?

About 3,100 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is SR 100 over Town Branch Trib?

The structure is 21 ft (6.4 m) long with a longest span of 6 ft (1.8 m).

Who owns SR 100 over Town Branch Trib?

It is owned by the State Highway Agency.