US Bridges

FAP 46 over Willow Branch

Fair

Dickson County, Tennessee · 1.2 Mi.S.E.Of Dickson · Structure no. 22SR0460001

Built
1964
61 years old, rebuilt 1988
Condition
Fair
inspected April 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
25,769
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 46 over Willow Branch is a concrete continuous culvert carrying FAP 46 over Willow Branch in Dickson County, Tennessee. It was built in 1964 and reconstructed in 1988, so it is 61 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 25,769 vehicles a day, roughly 9% of them trucks, projected to reach 39,424 by 2040. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesFAP 46
CrossesWillow Branch
Location1.2 Mi.S.E.Of Dickson
RouteState Highway 46
CountyDickson County
StateTennessee
Coordinates36.05565, -87.3697
Functional classUrban Other Principal Arterial

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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 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 traffic25,769 (2021)
Projected traffic39,424 by 2040
Trucks9%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$418,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 46 over Willow Branch built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1988.

What condition is FAP 46 over Willow 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 April 2024.

How much traffic does FAP 46 over Willow Branch carry?

About 25,769 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is FAP 46 over Willow Branch?

The structure is 26 ft (7.9 m) long with a longest span of 10 ft (3 m).

Who owns FAP 46 over Willow Branch?

It is owned by the State Highway Agency.