US Bridges

SR 9 over Coosa River

Fair

Cherokee County, Alabama · Cedar Bluff City Limits · Structure no. 007339

Built
1961
64 years old
Condition
Fair
inspected January 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
967 ft
3 main spans
Daily traffic
9,959
2022 count
Owner
State
State Highway Agency

About this bridge

SR 9 over Coosa River is a steel continuous girder and floorbeam system carrying SR 9 over Coosa River in Cherokee County, Alabama. It was built in 1961, so it is 64 years old, older than the Alabama average of 51.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 9,959 vehicles a day, roughly 11% of them trucks, projected to reach 13,943 by 2042. The structure is 967 ft (294.7 m) long and 31 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

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CarriesSR 9
CrossesCoosa River
LocationCedar Bluff City Limits
RouteState Highway 9
CountyCherokee County
StateAlabama
Coordinates34.21407, -85.61183
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.7 US tons
Inventory rating37.6 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+6 approach)
Design loadHS 20
Structure length967 ft (294.7 m)
Longest span180 ft (54.9 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,959 (2022)
Projected traffic13,943 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$6.7 million (2025 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was SR 9 over Coosa River built?

It was built in 1961, making it 64 years old in 2025.

What condition is SR 9 over Coosa 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 January 2024.

How much traffic does SR 9 over Coosa River carry?

About 9,959 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is SR 9 over Coosa River?

The structure is 967 ft (294.7 m) long with a longest span of 180 ft (54.9 m) and a deck 31 ft wide.

Who owns SR 9 over Coosa River?

It is owned by the State Highway Agency.