US Bridges

Nfa A376 over North Indian Creek

Fair

Unicoi County, Tennessee · In Unicoi · Structure no. 860A3760001

Built
1985
40 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
650
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A376 over North Indian Creek is a prestressed concrete box beam or girders - multiple carrying Nfa A376 over North Indian Creek in Unicoi County, Tennessee. It was built in 1985, so it is 40 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 5 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 650 vehicles a day, roughly 6% of them trucks, projected to reach 1,040 by 2040. The structure is 34 ft (10.5 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A376
CrossesNorth Indian Creek
LocationIn Unicoi
RouteCity Street 376
Coordinates36.18773, -82.33912
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length34 ft (10.5 m)
Longest span32 ft (9.8 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2020)
Projected traffic1,040 by 2040
Trucks6%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$275,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A376 over North Indian Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Nfa A376 over North 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 July 2024.

How much traffic does Nfa A376 over North Indian Creek carry?

About 650 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Nfa A376 over North Indian Creek?

The structure is 34 ft (10.5 m) long with a longest span of 32 ft (9.8 m) and a deck 28 ft wide.

Who owns Nfa A376 over North Indian Creek?

It is owned by the City or Municipal Highway Agency.