US Bridges

FAS 297 over Douglas Branch

Fair

Campbell County, Tennessee · .7 M FR Southern RR · Structure no. 07S23450005

Built
1958
67 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
1,149
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 297 over Douglas Branch is a concrete continuous culvert carrying FAS 297 over Douglas Branch in Campbell County, Tennessee. It was built in 1958, so it is 67 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 1,149 vehicles a day, roughly 5% of them trucks, projected to reach 1,838 by 2042. The structure is 23 ft (7 m) long and 29 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

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CarriesFAS 297
CrossesDouglas Branch
Location.7 M FR Southern RR
RouteState Highway 297
CountyCampbell County
StateTennessee
Coordinates36.4563, -84.29393
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 alignment6: Equal to present minimum criteria
Operating rating39.7 US tons
Inventory rating21.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,149 (2021)
Projected traffic1,838 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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$91,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 297 over Douglas Branch built?

It was built in 1958, making it 67 years old in 2025.

What condition is FAS 297 over Douglas 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 April 2023.

How much traffic does FAS 297 over Douglas Branch carry?

About 1,149 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAS 297 over Douglas Branch?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m) and a deck 29 ft wide.

Who owns FAS 297 over Douglas Branch?

It is owned by the State Highway Agency.