US Bridges

Nfa A747 over Turkey Creek

Fair

Hamblen County, Tennessee · 2MI North of SR32 · Structure no. 320A7470001

Built
1900
125 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
560
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A747 over Turkey Creek is a concrete culvert carrying Nfa A747 over Turkey Creek in Hamblen County, Tennessee. It was built in 1900, so it is 125 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 560 vehicles a day, roughly 2% of them trucks, projected to reach 896 by 2039. The structure is 20 ft (6.2 m) long and 19 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNfa A747
CrossesTurkey Creek
Location2MI North of SR32
RouteCity Street 747
CountyHamblen County
StateTennessee
Coordinates36.23775, -83.29718
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.5 US tons
Inventory rating30.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length20 ft (6.2 m)
Longest span20 ft (6.2 m)
Deck width19 ft (5.9 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2020)
Projected traffic896 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$116,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A747 over Turkey Creek built?

It was built in 1900, making it 125 years old in 2025.

What condition is Nfa A747 over Turkey 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 September 2023.

How much traffic does Nfa A747 over Turkey Creek carry?

About 560 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A747 over Turkey Creek?

The structure is 20 ft (6.2 m) long with a longest span of 20 ft (6.2 m) and a deck 19 ft wide.

Who owns Nfa A747 over Turkey Creek?

It is owned by the City or Municipal Highway Agency.