US Bridges

Nfa 931 (sa 1504) over Pigeon River

Fair

Cocke County, Tennessee · At Hartford · Structure no. 15F00140001

Built
1984
41 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
251 ft
5 main spans
Daily traffic
433
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 931 (sa 1504) over Pigeon River is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa 931 (sa 1504) 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 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 433 vehicles a day, roughly 3% of them trucks, projected to reach 693 by 2042. The structure is 251 ft (76.5 m) long and 26 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesNfa 931 (sa 1504)
CrossesPigeon River
LocationAt Hartford
RouteCounty Highway 931
Coordinates35.81294, -83.062
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating48.6 US tons
Inventory rating27.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length251 ft (76.5 m)
Longest span72 ft (21.9 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic433 (2021)
Projected traffic693 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 931 (sa 1504) over Pigeon River built?

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

What condition is Nfa 931 (sa 1504) 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 931 (sa 1504) over Pigeon River carry?

About 433 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 931 (sa 1504) over Pigeon River?

The structure is 251 ft (76.5 m) long with a longest span of 72 ft (21.9 m) and a deck 26 ft wide.

Who owns Nfa 931 (sa 1504) over Pigeon River?

It is owned by the County Highway Agency.