US Bridges

Nfa 1289 (sa 4722) over Little Flat Creek

Fair

Knox County, Tennessee · Washington Pk-S of Corryt · Structure no. 47S24120007

Built
1952
73 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
45 ft
1 main span
Daily traffic
3,456
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1289 (sa 4722) over Little Flat Creek is a concrete tee beam carrying Nfa 1289 (sa 4722) over Little Flat Creek in Knox County, Tennessee. It was built in 1952, so it is 73 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 3,456 vehicles a day, roughly 3% of them trucks, projected to reach 5,968 by 2040. The structure is 45 ft (13.6 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa 1289 (sa 4722)
CrossesLittle Flat Creek
LocationWashington Pk-S of Corryt
RouteCounty Highway 1289
CountyKnox County
StateTennessee
Coordinates36.13061, -83.78487
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating32.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length45 ft (13.6 m)
Longest span38 ft (11.6 m)
Deck width23 ft (7.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,456 (2021)
Projected traffic5,968 by 2040
Trucks3%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$304,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1289 (sa 4722) over Little Flat Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is Nfa 1289 (sa 4722) over Little Flat 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 2024.

How much traffic does Nfa 1289 (sa 4722) over Little Flat Creek carry?

About 3,456 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1289 (sa 4722) over Little Flat Creek?

The structure is 45 ft (13.6 m) long with a longest span of 38 ft (11.6 m) and a deck 23 ft wide.

Who owns Nfa 1289 (sa 4722) over Little Flat Creek?

It is owned by the County Highway Agency.