US Bridges

Nfa 902 (sa 4020) over Branch

Fair

Henry County, Tennessee · 2 MI South of SR 76 · Structure no. 40E00030003

Built
1960
65 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
513
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 902 (sa 4020) over Branch is a concrete continuous culvert carrying Nfa 902 (sa 4020) over Branch in Henry 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 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 513 vehicles a day, roughly 3% of them trucks, projected to reach 821 by 2042. The structure is 21 ft (6.4 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNfa 902 (sa 4020)
CrossesBranch
Location2 MI South of SR 76
RouteCounty Highway 902
CountyHenry County
StateTennessee
Coordinates36.36314, -88.16889
Functional classRural Minor Collector

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 statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.7 US tons
Inventory rating19 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span9 ft (2.7 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic513 (2021)
Projected traffic821 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$404,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 902 (sa 4020) over Branch built?

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

What condition is Nfa 902 (sa 4020) 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 902 (sa 4020) over Branch carry?

About 513 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 902 (sa 4020) over Branch?

The structure is 21 ft (6.4 m) long with a longest span of 9 ft (2.7 m) and a deck 31 ft wide.

Who owns Nfa 902 (sa 4020) over Branch?

It is owned by the County Highway Agency.