US Bridges

Nfa A448 over Pigeon River

Fair

Cocke County, Tennessee · Just NW of I40&FOOTHILLS · Structure no. 150A4480001

Built
1985
40 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
252 ft
3 main spans
Daily traffic
390
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A448 over Pigeon River is a prestressed concrete box beam or girders - single or spread carrying Nfa A448 over Pigeon River in Cocke 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 390 vehicles a day, roughly 2% of them trucks, projected to reach 624 by 2042. The structure is 252 ft (76.8 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A448
CrossesPigeon River
LocationJust NW of I40&FOOTHILLS
RouteCounty Highway 448
CountyCocke County
StateTennessee
Coordinates35.84328, -83.18552
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.4 US tons
Inventory rating38.6 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length252 ft (76.8 m)
Longest span90 ft (27.4 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2020)
Projected traffic624 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$1.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A448 over Pigeon River built?

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

What condition is Nfa A448 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 A448 over Pigeon River carry?

About 390 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A448 over Pigeon River?

The structure is 252 ft (76.8 m) long with a longest span of 90 ft (27.4 m) and a deck 28 ft wide.

Who owns Nfa A448 over Pigeon River?

It is owned by the County Highway Agency.