US Bridges

Nfa A274 over Harmon Creek

Fair

Henderson County, Tennessee · 1 MI S of SR20 · Structure no. 390A2740003

Built
2008
17 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete Continuous
Length
52 ft
3 main spans
Daily traffic
110
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A274 over Harmon Creek is a concrete continuous culvert carrying Nfa A274 over Harmon Creek in Henderson County, Tennessee. It was built in 2008, so it is 17 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 110 vehicles a day, roughly 2% of them trucks, projected to reach 176 by 2040. The structure is 52 ft (15.8 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A274
CrossesHarmon Creek
Location1 MI S of SR20
RouteCounty Highway 274
CountyHenderson County
StateTennessee
Coordinates35.62997, -88.35603
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span17 ft (5.2 m)
Deck width31 ft (9.3 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2020)
Projected traffic176 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A274 over Harmon Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is Nfa A274 over Harmon 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 June 2024.

How much traffic does Nfa A274 over Harmon Creek carry?

About 110 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A274 over Harmon Creek?

The structure is 52 ft (15.8 m) long with a longest span of 17 ft (5.2 m) and a deck 31 ft wide.

Who owns Nfa A274 over Harmon Creek?

It is owned by the County Highway Agency.