US Bridges

Nfa A070 over Branch

FairPosted for load

Bradley County, Tennessee · .6MI North of I75 · Structure no. 060A0700001

Built
1940
85 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
1,240
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A070 over Branch is a concrete continuous culvert carrying Nfa A070 over Branch in Bradley 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,240 vehicles a day, roughly 2% of them trucks, projected to reach 1,984 by 2041. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNfa A070
CrossesBranch
Location.6MI North of I75
RouteCounty Highway 70
CountyBradley County
StateTennessee
Coordinates35.1671, -84.9511
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.4 US tons
Inventory rating19 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,240 (2020)
Projected traffic1,984 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A070 over Branch built?

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

What condition is Nfa A070 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 September 2023.

How much traffic does Nfa A070 over Branch carry?

About 1,240 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A070 over Branch?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns Nfa A070 over Branch?

It is owned by the County Highway Agency.