US Bridges

Nfa A030 over Big Indian Creek

Fair

Putnam County, Tennessee · 3MI South of SR24 · Structure no. 710A0300001

Built
1986
39 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
49 ft
3 main spans
Daily traffic
30
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A030 over Big Indian Creek is a concrete continuous culvert carrying Nfa A030 over Big Indian Creek in Putnam County, Tennessee. It was built in 1986, so it is 39 years old, younger 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 30 vehicles a day, roughly 2% of them trucks, projected to reach 48 by 2042. The structure is 49 ft (14.8 m) long and 35 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesNfa A030
CrossesBig Indian Creek
Location3MI South of SR24
RouteCounty Highway 30
Coordinates36.15273, -85.71278
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating95.3 US tons
Inventory rating59.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length49 ft (14.8 m)
Longest span15 ft (4.6 m)
Deck width35 ft (10.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2020)
Projected traffic48 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A030 over Big Indian Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Nfa A030 over Big Indian 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 August 2024.

How much traffic does Nfa A030 over Big Indian Creek carry?

About 30 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A030 over Big Indian Creek?

The structure is 49 ft (14.8 m) long with a longest span of 15 ft (4.6 m) and a deck 35 ft wide.

Who owns Nfa A030 over Big Indian Creek?

It is owned by the County Highway Agency.