US Bridges

Nfa E521 730841F over Southern Railway

Fair

Anderson County, Tennessee · .5 M NE of US25W-SR61 JCT · Structure no. 010A2100001

Built
1990
35 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
238 ft
3 main spans
Daily traffic
2,336
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa E521 730841F over Southern Railway is a steel continuous stringer/multi-beam or girder carrying Nfa E521 730841F over Southern Railway in Anderson County, Tennessee. It was built in 1990, so it is 35 years old, younger 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 6 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 2,336 vehicles a day, roughly 2% of them trucks, projected to reach 3,738 by 2041. The structure is 238 ft (72.5 m) long and 38 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesNfa E521 730841F
CrossesSouthern Railway
Location.5 M NE of US25W-SR61 JCT
RouteCity Street 521
CountyAnderson County
StateTennessee
Coordinates36.09827, -84.12697
Functional classUrban Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating61.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length238 ft (72.5 m)
Longest span117 ft (35.7 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,336 (2020)
Projected traffic3,738 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed123.7 mi (199 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.5 million (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa E521 730841F over Southern Railway built?

It was built in 1990, making it 35 years old in 2025.

What condition is Nfa E521 730841F 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 July 2023.

How much traffic does Nfa E521 730841F over Southern Railway carry?

About 2,336 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa E521 730841F over Southern Railway?

The structure is 238 ft (72.5 m) long with a longest span of 117 ft (35.7 m) and a deck 38 ft wide.

Who owns Nfa E521 730841F over Southern Railway?

It is owned by the City or Municipal Highway Agency.