US Bridges

Nfa 952 (sa 4115) over Bristol Cave Branch

Fair

Hickman County, Tennessee · 1 M North of Bon Aqua · Structure no. 41F04750003

Built
1985
40 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
1,445
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 952 (sa 4115) over Bristol Cave Branch is a concrete continuous culvert carrying Nfa 952 (sa 4115) over Bristol Cave Branch in Hickman County, Tennessee. It was built in 1985, so it is 40 years old, younger 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 1,445 vehicles a day, roughly 3% of them trucks, projected to reach 2,522 by 2041. The structure is 37 ft (11.3 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesNfa 952 (sa 4115)
CrossesBristol Cave Branch
Location1 M North of Bon Aqua
RouteCounty Highway 952
CountyHickman County
StateTennessee
Coordinates35.94318, -87.32127
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span12 ft (3.7 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,445 (2021)
Projected traffic2,522 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 952 (sa 4115) over Bristol Cave Branch built?

It was built in 1985, making it 40 years old in 2025.

What condition is Nfa 952 (sa 4115) over Bristol Cave 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 August 2023.

How much traffic does Nfa 952 (sa 4115) over Bristol Cave Branch carry?

About 1,445 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 952 (sa 4115) over Bristol Cave Branch?

The structure is 37 ft (11.3 m) long with a longest span of 12 ft (3.7 m) and a deck 31 ft wide.

Who owns Nfa 952 (sa 4115) over Bristol Cave Branch?

It is owned by the County Highway Agency.