US Bridges

FAS 331 over Branch

Fair

Knox County, Tennessee · 2.7 M S of SR33 · Structure no. 47S25040001

Built
1940
85 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
43 ft
2 main spans
Daily traffic
14,067
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 331 over Branch is a concrete continuous culvert carrying FAS 331 over Branch in Knox County, Tennessee. It was built in 1940, so it is 85 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 14,067 vehicles a day, roughly 4% of them trucks, projected to reach 22,848 by 2040. The structure is 43 ft (13.1 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFAS 331
CrossesBranch
Location2.7 M S of SR33
RouteState Highway 331
CountyKnox County
StateTennessee
Coordinates36.05267, -83.89507
Functional classUrban 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length43 ft (13.1 m)
Longest span15 ft (4.6 m)
Deck width24 ft (7.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,067 (2021)
Projected traffic22,848 by 2040
Trucks4%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$319,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 331 over Branch built?

It was built in 1940, making it 85 years old in 2025.

What condition is FAS 331 over Branch 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 March 2024.

How much traffic does FAS 331 over Branch carry?

About 14,067 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is FAS 331 over Branch?

The structure is 43 ft (13.1 m) long with a longest span of 15 ft (4.6 m) and a deck 24 ft wide.

Who owns FAS 331 over Branch?

It is owned by the State Highway Agency.