US Bridges

Nfa 946 (sa 4107) over Branch

Fair

Hickman County, Tennessee · .5 M NE of Only · Structure no. 41S61730007

Built
1960
65 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
56 ft
3 main spans
Daily traffic
155
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 946 (sa 4107) over Branch is a concrete continuous culvert carrying Nfa 946 (sa 4107) over Branch in Hickman 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 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 155 vehicles a day, roughly 3% of them trucks, projected to reach 227 by 2042. The structure is 56 ft (17.1 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNfa 946 (sa 4107)
CrossesBranch
Location.5 M NE of Only
RouteCounty Highway 946
CountyHickman County
StateTennessee
Coordinates35.86732, -87.67957
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length56 ft (17.1 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic155 (2021)
Projected traffic227 by 2042
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 946 (sa 4107) over Branch built?

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

What condition is Nfa 946 (sa 4107) 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 November 2023.

How much traffic does Nfa 946 (sa 4107) over Branch carry?

About 155 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 946 (sa 4107) over Branch?

The structure is 56 ft (17.1 m) long with a longest span of 15 ft (4.6 m).

Who owns Nfa 946 (sa 4107) over Branch?

It is owned by the County Highway Agency.