US Bridges

SR 91 over Chattahoochee River O/F

Good

Seminole County, Georgia · App 8 Miles South of JCT · Structure no. 000000025300200

Built
1992
33 years old
Condition
Good
inspected July 2024
Type
Tee Beam
Concrete
Length
320 ft
8 main spans
Daily traffic
2,580
2024 count
Owner
State
State Highway Agency

About this bridge

SR 91 over Chattahoochee River O/F is a concrete tee beam carrying SR 91 over Chattahoochee River O/F in Seminole County, Georgia. It was built in 1992, so it is 33 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 2,580 vehicles a day, roughly 27% of them trucks, projected to reach 2,535 by 2031. The structure is 320 ft (97.5 m) long and 45 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesSR 91
CrossesChattahoochee River O/F
LocationApp 8 Miles South of JCT
RouteState Highway 91
StateGeorgia
Coordinates30.97887, -84.99677
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating40.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20 + Mod
Structure length320 ft (97.5 m)
Longest span40 ft (12.2 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,580 (2024)
Projected traffic2,535 by 2031
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed8.1 mi (13 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$1.9 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 91 over Chattahoochee River O/F built?

It was built in 1992, making it 33 years old in 2025.

What condition is SR 91 over Chattahoochee River O/F 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 91 over Chattahoochee River O/F carry?

About 2,580 vehicles per day (2024 count), of which roughly 27% are trucks.

How long is SR 91 over Chattahoochee River O/F?

The structure is 320 ft (97.5 m) long with a longest span of 40 ft (12.2 m) and a deck 45 ft wide.

Who owns SR 91 over Chattahoochee River O/F?

It is owned by the State Highway Agency.