US Bridges

FAS 304 over Branch

Fair

Roane County, Tennessee · 2 MI SW JCT SR58 & SR304 · Structure no. 73SR3040001

Built
1950
75 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
2,030
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 304 over Branch is a concrete continuous culvert carrying FAS 304 over Branch in Roane 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 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 2,030 vehicles a day, roughly 5% of them trucks, projected to reach 3,346 by 2041. The structure is 23 ft (7 m) long and 29 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesFAS 304
CrossesBranch
Location2 MI SW JCT SR58 & SR304
RouteState Highway 304
CountyRoane County
StateTennessee
Coordinates35.82225, -84.57757
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span9 ft (2.7 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,030 (2021)
Projected traffic3,346 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$127,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 304 over Branch built?

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

What condition is FAS 304 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 May 2023.

How much traffic does FAS 304 over Branch carry?

About 2,030 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAS 304 over Branch?

The structure is 23 ft (7 m) long with a longest span of 9 ft (2.7 m) and a deck 29 ft wide.

Who owns FAS 304 over Branch?

It is owned by the State Highway Agency.