US Bridges

SR91 over Chattahoochee River

Fair

Jackson County, Florida · Ga-Fl State Line · Structure no. 53GA96

Built
1956
69 years old
Condition
Fair
inspected April 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
1,592 ft
3 main spans
Daily traffic
2,020
2012 count
Owner
State
State Highway Agency

About this bridge

SR91 over Chattahoochee River is a steel continuous girder and floorbeam system carrying SR91 over Chattahoochee River in Jackson County, Florida. It was built in 1956, so it is 69 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,020 vehicles a day, roughly 30% of them trucks, projected to reach 3,030 by 2032. The structure is 1,592 ft (485.2 m) long and 34 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

Location

Open in Google Maps
CarriesSR91
CrossesChattahoochee River
LocationGa-Fl State Line
RouteState Highway 91
CountyJackson County
StateFlorida
Coordinates30.97739, -85.00548
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating36.7 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+14 approach)
Design loadHS 20
Structure length1,592 ft (485.2 m)
Longest span154 ft (46.9 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,020 (2012)
Projected traffic3,030 by 2032
Trucks30%
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$9.3 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was SR91 over Chattahoochee River built?

It was built in 1956, making it 69 years old in 2025.

What condition is SR91 over Chattahoochee River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does SR91 over Chattahoochee River carry?

About 2,020 vehicles per day (2012 count), of which roughly 30% are trucks.

How long is SR91 over Chattahoochee River?

The structure is 1,592 ft (485.2 m) long with a longest span of 154 ft (46.9 m) and a deck 34 ft wide.

Who owns SR91 over Chattahoochee River?

It is owned by the State Highway Agency.