US Bridges

SR 100 over Coosa River

Good

Floyd County, Georgia · 0.3 Miles S of Coosa · Structure no. 000000011551030

Built
2013
12 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
630 ft
5 main spans
Daily traffic
2,440
2024 count
Owner
State
State Highway Agency

About this bridge

SR 100 over Coosa River is a prestressed concrete stringer/multi-beam or girder carrying SR 100 over Coosa River in Floyd County, Georgia. It was built in 2013, so it is 12 years old, younger 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 2,440 vehicles a day, roughly 10% of them trucks, projected to reach 6,825 by 2027. The structure is 630 ft (192 m) long and 47 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesSR 100
CrossesCoosa River
Location0.3 Miles S of Coosa
RouteState Highway 100
StateGeorgia
Coordinates34.2487, -85.3556
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.9 US tons
Inventory rating46 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length630 ft (192 m)
Longest span138 ft (42.1 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,440 (2024)
Projected traffic6,825 by 2027
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed16.2 mi (26 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$83.9 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 100 over Coosa River built?

It was built in 2013, making it 12 years old in 2025.

What condition is SR 100 over Coosa River 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 August 2023.

How much traffic does SR 100 over Coosa River carry?

About 2,440 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SR 100 over Coosa River?

The structure is 630 ft (192 m) long with a longest span of 138 ft (42.1 m) and a deck 47 ft wide.

Who owns SR 100 over Coosa River?

It is owned by the State Highway Agency.