US Bridges

FAU 2978 over Napier Creek

Fair

Obion County, Tennessee · In Union City · Structure no. 66M29780003

Built
1960
65 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
56 ft
3 main spans
Daily traffic
2,688
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 2978 over Napier Creek is a concrete continuous culvert carrying FAU 2978 over Napier Creek in Obion 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 2,688 vehicles a day, roughly 3% of them trucks, projected to reach 3,600 by 2041. The structure is 56 ft (17.1 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAU 2978
CrossesNapier Creek
LocationIn Union City
RouteCity Street 2978
CountyObion County
StateTennessee
Coordinates36.42342, -89.0255
Functional classUrban 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 inspectionMarch 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating28.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span12 ft (3.7 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,688 (2021)
Projected traffic3,600 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 FAU 2978 over Napier Creek built?

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

What condition is FAU 2978 over Napier Creek 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 March 2023.

How much traffic does FAU 2978 over Napier Creek carry?

About 2,688 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is FAU 2978 over Napier Creek?

The structure is 56 ft (17.1 m) long with a longest span of 12 ft (3.7 m) and a deck 42 ft wide.

Who owns FAU 2978 over Napier Creek?

It is owned by the City or Municipal Highway Agency.