US Bridges

Nfa A381 over Branch

Good

DeKalb County, Tennessee · 1.5 KM N. of US70 · Structure no. 210A3810001

Built
1972
53 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
1,170
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A381 over Branch is a concrete continuous culvert carrying Nfa A381 over Branch in DeKalb County, Tennessee. It was built in 1972, so it is 53 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,170 vehicles a day, roughly 2% of them trucks, projected to reach 1,872 by 2042. The structure is 25 ft (7.6 m) long and 27 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesNfa A381
CrossesBranch
Location1.5 KM N. of US70
RouteCity Street 381
Coordinates36.07682, -86.04072
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span11 ft (3.4 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,170 (2020)
Projected traffic1,872 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 with deck rehabilitation or replacement
Estimated improvement cost$119,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A381 over Branch built?

It was built in 1972, making it 53 years old in 2025.

What condition is Nfa A381 over Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does Nfa A381 over Branch carry?

About 1,170 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A381 over Branch?

The structure is 25 ft (7.6 m) long with a longest span of 11 ft (3.4 m) and a deck 27 ft wide.

Who owns Nfa A381 over Branch?

It is owned by the City or Municipal Highway Agency.