US Bridges

Nfa A579 over Long Creek

PoorPosted for load

Jefferson County, Tennessee · 1.3 M S of SR341-I81 Jct. · Structure no. 450A5790001

Built
1952
73 years old
Condition
Poor
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
27 ft
1 main span
Daily traffic
130
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A579 over Long Creek is a steel stringer/multi-beam or girder carrying Nfa A579 over Long Creek in Jefferson County, Tennessee. It was built in 1952, so it is 73 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 130 vehicles a day, roughly 2% of them trucks, projected to reach 208 by 2042. The structure is 27 ft (8.2 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A579
CrossesLong Creek
Location1.3 M S of SR341-I81 Jct.
RouteCounty Highway 579
CountyJefferson County
StateTennessee
Coordinates36.09207, -83.33331
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating4.3 US tons
Inventory rating3.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width31 ft (9.3 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2020)
Projected traffic208 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$202,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A579 over Long Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is Nfa A579 over Long Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does Nfa A579 over Long Creek carry?

About 130 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A579 over Long Creek?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 31 ft wide.

Who owns Nfa A579 over Long Creek?

It is owned by the County Highway Agency.