US Bridges

Airport Road over Conasauga River

Good

Murray County, Georgia · Murray-Whitfield CO Line · Structure no. 000000021300380

Built
1975
50 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
420 ft
6 main spans
Daily traffic
3,730
2024 count
Owner
County
County Highway Agency

About this bridge

Airport Road over Conasauga River is a prestressed concrete stringer/multi-beam or girder carrying Airport Road over Conasauga River in Murray County, Georgia. It was built in 1975, so it is 50 years old, older 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 3,730 vehicles a day, roughly 1% of them trucks, projected to reach 3,945 by 2032. The structure is 420 ft (128 m) long and 43 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesAirport Road
CrossesConasauga River
LocationMurray-Whitfield CO Line
RouteCounty Highway 556
CountyMurray County
StateGeorgia
Coordinates34.70866, -84.86397
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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length420 ft (128 m)
Longest span70 ft (21.3 m)
Deck width43 ft (13 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,730 (2024)
Projected traffic3,945 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$2.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Airport Road over Conasauga River built?

It was built in 1975, making it 50 years old in 2025.

What condition is Airport Road over Conasauga 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 February 2024.

How much traffic does Airport Road over Conasauga River carry?

About 3,730 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Airport Road over Conasauga River?

The structure is 420 ft (128 m) long with a longest span of 70 ft (21.3 m) and a deck 43 ft wide.

Who owns Airport Road over Conasauga River?

It is owned by the County Highway Agency.