US Bridges

Nfa A660 over Indian Creek

Fair

Jefferson County, Tennessee · 1.5 M SW of US25W at CO L · Structure no. 450A6600001

Built
1943
82 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
100
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A660 over Indian Creek is a concrete continuous culvert carrying Nfa A660 over Indian Creek in Jefferson County, Tennessee. It was built in 1943, so it is 82 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 100 vehicles a day, roughly 2% of them trucks, projected to reach 160 by 2041. The structure is 25 ft (7.5 m) long. If it were closed, the detour would be 8.7 mi (14 km).

CarriesNfa A660
CrossesIndian Creek
Location1.5 M SW of US25W at CO L
RouteCounty Highway 660
Coordinates35.97683, -83.30965
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length25 ft (7.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic160 by 2041
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 A660 over Indian Creek built?

It was built in 1943, making it 82 years old in 2025.

What condition is Nfa A660 over 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 May 2023.

How much traffic does Nfa A660 over Indian Creek carry?

About 100 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A660 over Indian Creek?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m).

Who owns Nfa A660 over Indian Creek?

It is owned by the County Highway Agency.