US Bridges

Nfa A180 over Duck River

PoorPosted for load

Coffee County, Tennessee · 2.1 MI from SR 53 · Structure no. 160A1800005

Built
1969
56 years old
Condition
Poor
inspected March 2024
Type
Culvert
Concrete Continuous
Length
59 ft
3 main spans
Daily traffic
420
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 1969, so it is 56 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 420 vehicles a day, roughly 2% of them trucks, projected to reach 672 by 2042. The structure is 59 ft (17.9 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A180
CrossesDuck River
Location2.1 MI from SR 53
RouteCounty Highway 180
CountyCoffee County
StateTennessee
Coordinates35.5922, -86.0887
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length59 ft (17.9 m)
Longest span19 ft (5.7 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic420 (2020)
Projected traffic672 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$191,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A180 over Duck River built?

It was built in 1969, making it 56 years old in 2025.

What condition is Nfa A180 over Duck River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Nfa A180 over Duck River carry?

About 420 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A180 over Duck River?

The structure is 59 ft (17.9 m) long with a longest span of 19 ft (5.7 m) and a deck 24 ft wide.

Who owns Nfa A180 over Duck River?

It is owned by the County Highway Agency.