US Bridges

Nfa A009 over Pigeon River

Fair

Cocke County, Tennessee · Btwn I40-SR73 JCT & US25 · Structure no. 150A9000001

Built
1984
41 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
262 ft
3 main spans
Daily traffic
430
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A009 over Pigeon River is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa A009 over Pigeon River in Cocke County, Tennessee. It was built in 1984, so it is 41 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 430 vehicles a day, roughly 2% of them trucks, projected to reach 688 by 2042. The structure is 262 ft (79.9 m) long and 28 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesNfa A009
CrossesPigeon River
LocationBtwn I40-SR73 JCT & US25
RouteCounty Highway 9
Coordinates35.92873, -83.17073
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating25.7 US tons
Inventory rating19.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length262 ft (79.9 m)
Longest span110 ft (33.5 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic430 (2020)
Projected traffic688 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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$2.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A009 over Pigeon River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Nfa A009 over Pigeon River 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 October 2024.

How much traffic does Nfa A009 over Pigeon River carry?

About 430 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A009 over Pigeon River?

The structure is 262 ft (79.9 m) long with a longest span of 110 ft (33.5 m) and a deck 28 ft wide.

Who owns Nfa A009 over Pigeon River?

It is owned by the County Highway Agency.