US Bridges

Nfa A072 over West Branch

Fair

Smith County, Tennessee · 4.0 MI E JCT SR85&SR263 · Structure no. 800A0720001

Built
1970
55 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
120
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A072 over West Branch is a concrete culvert carrying Nfa A072 over West Branch in Smith County, Tennessee. It was built in 1970, so it is 55 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.

It carries about 120 vehicles a day, roughly 3% of them trucks, projected to reach 192 by 2041. The structure is 34 ft (10.4 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A072
CrossesWest Branch
Location4.0 MI E JCT SR85&SR263
RouteCounty Highway 72
CountySmith County
StateTennessee
Coordinates36.3185, -85.87141
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating82.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2020)
Projected traffic192 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$104,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A072 over West Branch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa A072 over West 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 June 2023.

How much traffic does Nfa A072 over West Branch carry?

About 120 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Nfa A072 over West Branch?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns Nfa A072 over West Branch?

It is owned by the County Highway Agency.