US Bridges

Nfa 2356 731507N over Southern Rwy & City ST

Good

Loudon County, Tennessee · High ST in Loudon. · Structure no. 53023560001

Built
1986
39 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
194 ft
5 main spans
Daily traffic
447
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa 2356 731507N over Southern Rwy & City ST is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa 2356 731507N over Southern Rwy & City ST in Loudon County, Tennessee. It was built in 1986, so it is 39 years old, younger 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 447 vehicles a day, roughly 1% of them trucks, projected to reach 715 by 2042. The structure is 194 ft (59 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNfa 2356 731507N
CrossesSouthern Rwy & City ST
LocationHigh ST in Loudon.
RouteCity Street 2356
Coordinates35.73945, -84.34337
Functional classUrban 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.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.5 US tons
Inventory rating34.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length194 ft (59 m)
Longest span52 ft (16 m)
Deck width36 ft (11 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic447 (2021)
Projected traffic715 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa 2356 731507N over Southern Rwy & City ST built?

It was built in 1986, making it 39 years old in 2025.

What condition is Nfa 2356 731507N over Southern Rwy & City ST 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 August 2024.

How much traffic does Nfa 2356 731507N over Southern Rwy & City ST carry?

About 447 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Nfa 2356 731507N over Southern Rwy & City ST?

The structure is 194 ft (59 m) long with a longest span of 52 ft (16 m) and a deck 36 ft wide.

Who owns Nfa 2356 731507N over Southern Rwy & City ST?

It is owned by the City or Municipal Highway Agency.