US Bridges

FAS 336 over Nine Mile Creek

Fair

Blount County, Tennessee · 1.2 M NW of Wellsvillie · Structure no. 05S24250001

Built
1950
75 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Concrete
Length
171 ft
6 main spans
Daily traffic
862
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 336 over Nine Mile Creek is a concrete tee beam carrying FAS 336 over Nine Mile Creek in Blount County, Tennessee. It was built in 1950, so it is 75 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 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 862 vehicles a day, roughly 5% of them trucks, projected to reach 1,582 by 2042. The structure is 171 ft (52.1 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFAS 336
CrossesNine Mile Creek
Location1.2 M NW of Wellsvillie
RouteState Highway 336
CountyBlount County
StateTennessee
Coordinates35.60762, -84.08808
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating28.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length171 ft (52.1 m)
Longest span29 ft (8.7 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic862 (2021)
Projected traffic1,582 by 2042
Trucks5%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$227,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 336 over Nine Mile Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is FAS 336 over Nine Mile 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 October 2023.

How much traffic does FAS 336 over Nine Mile Creek carry?

About 862 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAS 336 over Nine Mile Creek?

The structure is 171 ft (52.1 m) long with a longest span of 29 ft (8.7 m) and a deck 29 ft wide.

Who owns FAS 336 over Nine Mile Creek?

It is owned by the State Highway Agency.