US Bridges

Nfa 2456 over Buffalo Creek

Fair

Anderson County, Tennessee · N Off SR 61 at Andersonvi · Structure no. 01S24750001

Built
1940
85 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
513
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2456 over Buffalo Creek is a steel stringer/multi-beam or girder carrying Nfa 2456 over Buffalo Creek in Anderson County, Tennessee. It was built in 1940, so it is 85 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 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 513 vehicles a day, roughly 3% of them trucks, projected to reach 778 by 2041. The structure is 30 ft (9.1 m) long and 18 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 2456
CrossesBuffalo Creek
LocationN Off SR 61 at Andersonvi
RouteCounty Highway 2456
CountyAnderson County
StateTennessee
Coordinates36.20258, -84.04187
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating54.6 US tons
Inventory rating32.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length30 ft (9.1 m)
Longest span25 ft (7.6 m)
Deck width18 ft (5.6 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic513 (2021)
Projected traffic778 by 2041
Trucks3%
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 statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$166,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 2456 over Buffalo Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Nfa 2456 over Buffalo Creek 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 June 2023.

How much traffic does Nfa 2456 over Buffalo Creek carry?

About 513 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2456 over Buffalo Creek?

The structure is 30 ft (9.1 m) long with a longest span of 25 ft (7.6 m) and a deck 18 ft wide.

Who owns Nfa 2456 over Buffalo Creek?

It is owned by the County Highway Agency.