US Bridges

FAP 72 731513S over Southern Railway

Good

Loudon County, Tennessee · In Loudon City Limits · Structure no. 53SR0720009

Built
1974
51 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
168 ft
3 main spans
Daily traffic
15,703
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 72 731513S over Southern Railway is a prestressed concrete continuous stringer/multi-beam or girder carrying FAP 72 731513S over Southern Railway in Loudon County, Tennessee. It was built in 1974, so it is 51 years old, older than the Tennessee average of 47.4 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 15,703 vehicles a day, roughly 4% of them trucks, projected to reach 20,158 by 2041. The structure is 168 ft (51.1 m) long and 54 ft wide. If it were closed, the detour would be 41 mi (66 km).

CarriesFAP 72 731513S
CrossesSouthern Railway
LocationIn Loudon City Limits
RouteState Highway 72
Coordinates35.7188, -84.35983
Functional classUrban 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.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.7 US tons
Inventory rating25.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length168 ft (51.1 m)
Longest span58 ft (17.8 m)
Deck width54 ft (16.5 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,703 (2021)
Projected traffic20,158 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed41 mi (66 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.9 million (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAP 72 731513S over Southern Railway built?

It was built in 1974, making it 51 years old in 2025.

What condition is FAP 72 731513S over Southern Railway 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 2025.

How much traffic does FAP 72 731513S over Southern Railway carry?

About 15,703 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAP 72 731513S over Southern Railway?

The structure is 168 ft (51.1 m) long with a longest span of 58 ft (17.8 m) and a deck 54 ft wide.

Who owns FAP 72 731513S over Southern Railway?

It is owned by the State Highway Agency.