US Bridges

FAU 3714 731492B over Southern Railway

Fair

Loudon County, Tennessee · 1.5 M E Halls Ferry RD · Structure no. 53S25290001

Built
1950
75 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
111 ft
3 main spans
Daily traffic
1,862
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 3714 731492B over Southern Railway is a concrete tee beam carrying FAU 3714 731492B over Southern Railway in Loudon County, Tennessee. It was built in 1950, so it is 75 years old, older than the Tennessee average of 47.4 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 1,862 vehicles a day, roughly 1% of them trucks, projected to reach 2,979 by 2042. The structure is 111 ft (33.9 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFAU 3714 731492B
CrossesSouthern Railway
Location1.5 M E Halls Ferry RD
RouteCity Street 3714
CountyLoudon County
StateTennessee
Coordinates35.78115, -84.27973
Functional classUrban Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length111 ft (33.9 m)
Longest span37 ft (11.4 m)
Deck width31 ft (9.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,862 (2021)
Projected traffic2,979 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$265,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAU 3714 731492B over Southern Railway built?

It was built in 1950, making it 75 years old in 2025.

What condition is FAU 3714 731492B over Southern Railway 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 August 2024.

How much traffic does FAU 3714 731492B over Southern Railway carry?

About 1,862 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is FAU 3714 731492B over Southern Railway?

The structure is 111 ft (33.9 m) long with a longest span of 37 ft (11.4 m) and a deck 31 ft wide.

Who owns FAU 3714 731492B over Southern Railway?

It is owned by the City or Municipal Highway Agency.