US Bridges

Nfa A180 over Duck River

Good

Coffee County, Tennessee · .4 MI from SR 53 · Structure no. 160A1800001

Built
1960
65 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
140 ft
7 main spans
Daily traffic
530
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A180 over Duck River is a concrete continuous culvert carrying Nfa A180 over Duck River in Coffee 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 530 vehicles a day, roughly 2% of them trucks, projected to reach 848 by 2042. The structure is 140 ft (42.6 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa A180
CrossesDuck River
Location.4 MI from SR 53
RouteCounty Highway 180
Coordinates35.55707, -86.08788
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadUnknown
Structure length140 ft (42.6 m)
Longest span19 ft (5.7 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic530 (2020)
Projected traffic848 by 2042
Trucks2%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$914,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A180 over Duck River built?

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

What condition is Nfa A180 over Duck River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does Nfa A180 over Duck River carry?

About 530 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A180 over Duck River?

The structure is 140 ft (42.6 m) long with a longest span of 19 ft (5.7 m) and a deck 22 ft wide.

Who owns Nfa A180 over Duck River?

It is owned by the County Highway Agency.