US Bridges

Nfa A451 over Branch

Fair

Sumner County, Tennessee · 3.3 MI SE JCT SR25&SR76 · Structure no. 830A4510001

Built
1960
65 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
160
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A451 over Branch is a concrete continuous culvert carrying Nfa A451 over Branch in Sumner County, Tennessee. It was built in 1960, so it is 65 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 160 vehicles a day, roughly 8% of them trucks, projected to reach 256 by 2041. The structure is 24 ft (7.3 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNfa A451
CrossesBranch
Location3.3 MI SE JCT SR25&SR76
RouteCounty Highway 0A451
CountySumner County
StateTennessee
Coordinates36.45757, -86.55531
Functional classRural 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating42.5 US tons
Inventory rating24.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span9 ft (2.7 m)
Deck width21 ft (6.4 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2020)
Projected traffic256 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$103,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A451 over Branch built?

It was built in 1960, making it 65 years old in 2025.

What condition is Nfa A451 over Branch 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 December 2024.

How much traffic does Nfa A451 over Branch carry?

About 160 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Nfa A451 over Branch?

The structure is 24 ft (7.3 m) long with a longest span of 9 ft (2.7 m) and a deck 21 ft wide.

Who owns Nfa A451 over Branch?

It is owned by the County Highway Agency.