US Bridges

SR 156 over Oostanaula River

FairPosted for load

Gordon County, Georgia · 3.5 MI SW of Calhoun · Structure no. 000000012900440

Built
1957
68 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
500 ft
7 main spans
Daily traffic
2,260
2024 count
Owner
State
State Highway Agency

About this bridge

SR 156 over Oostanaula River is a steel continuous stringer/multi-beam or girder carrying SR 156 over Oostanaula River in Gordon County, Georgia. It was built in 1957, so it is 68 years old, older than the Georgia average of 47.5 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. Its operating status is: posted for load restriction.

It carries about 2,260 vehicles a day, roughly 1% of them trucks, projected to reach 3,300 by 2032. The structure is 500 ft (152.4 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSR 156
CrossesOostanaula River
Location3.5 MI SW of Calhoun
RouteState Highway 156
CountyGordon County
StateGeorgia
Coordinates34.49215, -85.01326
Functional classUrban 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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadH 15
Structure length500 ft (152.4 m)
Longest span100 ft (30.5 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,260 (2024)
Projected traffic3,300 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$801,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 156 over Oostanaula River built?

It was built in 1957, making it 68 years old in 2025.

What condition is SR 156 over Oostanaula 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 2023.

How much traffic does SR 156 over Oostanaula River carry?

About 2,260 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is SR 156 over Oostanaula River?

The structure is 500 ft (152.4 m) long with a longest span of 100 ft (30.5 m) and a deck 32 ft wide.

Who owns SR 156 over Oostanaula River?

It is owned by the State Highway Agency.