US Bridges

Nfa A731 over Branch

Fair

Wilson County, Tennessee · In City of Lebanon · Structure no. 950A7310001

Built
1914
111 years old
Condition
Fair
inspected July 2024
Type
Arch - Deck
Concrete
Length
65 ft
2 main spans
Daily traffic
1,750
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A731 over Branch is a concrete arch - deck carrying Nfa A731 over Branch in Wilson County, Tennessee. It was built in 1914, so it is 111 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 1,750 vehicles a day, roughly 2% of them trucks, projected to reach 2,800 by 2040. The structure is 65 ft (19.8 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNfa A731
CrossesBranch
LocationIn City of Lebanon
RouteCity Street 0A731
CountyWilson County
StateTennessee
Coordinates36.2029, -86.2925
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length65 ft (19.8 m)
Longest span30 ft (9.1 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,750 (2020)
Projected traffic2,800 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$278,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A731 over Branch built?

It was built in 1914, making it 111 years old in 2025.

What condition is Nfa A731 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 July 2024.

How much traffic does Nfa A731 over Branch carry?

About 1,750 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A731 over Branch?

The structure is 65 ft (19.8 m) long with a longest span of 30 ft (9.1 m) and a deck 25 ft wide.

Who owns Nfa A731 over Branch?

It is owned by the City or Municipal Highway Agency.