US Bridges

Nfa A335 over Dunn Creek

Fair

Sevier County, Tennessee · 1.3 M S of SR339 · Structure no. 780A3350001

Built
2008
17 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
55 ft
3 main spans
Daily traffic
30
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A335 over Dunn Creek is a concrete continuous culvert carrying Nfa A335 over Dunn Creek in Sevier 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 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 30 vehicles a day, roughly 2% of them trucks, projected to reach 48 by 2041. The structure is 55 ft (16.9 m) long and 47 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa A335
CrossesDunn Creek
Location1.3 M S of SR339
RouteCounty Highway 335
CountySevier County
StateTennessee
Coordinates35.82173, -83.35308
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length55 ft (16.9 m)
Longest span18 ft (5.5 m)
Deck width47 ft (14.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2020)
Projected traffic48 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 A335 over Dunn Creek built?

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

What condition is Nfa A335 over Dunn 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 2023.

How much traffic does Nfa A335 over Dunn Creek carry?

About 30 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A335 over Dunn Creek?

The structure is 55 ft (16.9 m) long with a longest span of 18 ft (5.5 m) and a deck 47 ft wide.

Who owns Nfa A335 over Dunn Creek?

It is owned by the County Highway Agency.