US Bridges

FAP 35 over Knob Creek

Fair

Sevier County, Tennessee · 4.5 Mi.W.Of Sevierville · Structure no. 78SR0350007

Built
1931
94 years old, rebuilt 2006
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete
Length
53 ft
2 main spans
Daily traffic
18,846
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 35 over Knob Creek is a concrete tee beam carrying FAP 35 over Knob Creek in Sevier County, Tennessee. It was built in 1931 and reconstructed in 2006, so it is 94 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 18,846 vehicles a day, roughly 5% of them trucks, projected to reach 27,437 by 2041. The structure is 53 ft (16.2 m) long and 62 ft wide. If it were closed, the detour would be 54.7 mi (88 km).

Location

Open in Google Maps
CarriesFAP 35
CrossesKnob Creek
Location4.5 Mi.W.Of Sevierville
RouteU.S. Route 411
CountySevier County
StateTennessee
Coordinates35.86417, -83.6638
Functional classRural Minor Arterial

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 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.8 US tons
Inventory rating29.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span27 ft (8.1 m)
Deck width62 ft (19 m)
Roadway width60 ft (18.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,846 (2021)
Projected traffic27,437 by 2041
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed54.7 mi (88 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$707,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 35 over Knob Creek built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 2006.

What condition is FAP 35 over Knob 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 FAP 35 over Knob Creek carry?

About 18,846 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAP 35 over Knob Creek?

The structure is 53 ft (16.2 m) long with a longest span of 27 ft (8.1 m) and a deck 62 ft wide.

Who owns FAP 35 over Knob Creek?

It is owned by the State Highway Agency.