US Bridges

Nfa A374 over Little Bigby Creek

Fair

Maury County, Tennessee · 6 M SW Columbia · Structure no. 600B0360001

Built
1970
55 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete Continuous
Length
49 ft
3 main spans
Daily traffic
200
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A374 over Little Bigby Creek is a concrete continuous culvert carrying Nfa A374 over Little Bigby Creek in Maury County, Tennessee. It was built in 1970, so it is 55 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 200 vehicles a day, roughly 2% of them trucks, projected to reach 320 by 2040. The structure is 49 ft (14.9 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa A374
CrossesLittle Bigby Creek
Location6 M SW Columbia
RouteCounty Highway 374
CountyMaury County
StateTennessee
Coordinates35.5382, -87.08971
Functional classRural Local

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 inspectionJune 2024
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 rating98.2 US tons
Inventory rating67.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length49 ft (14.9 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2020)
Projected traffic320 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$338,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A374 over Little Bigby Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa A374 over Little Bigby 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 June 2024.

How much traffic does Nfa A374 over Little Bigby Creek carry?

About 200 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A374 over Little Bigby Creek?

The structure is 49 ft (14.9 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns Nfa A374 over Little Bigby Creek?

It is owned by the County Highway Agency.