US Bridges

Nfa B082 over Cardiff Creek

FairPosted for load

Roane County, Tennessee · Just SW of US29-SR382 JCT · Structure no. 730A1810001

Built
1935
90 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
150
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa B082 over Cardiff Creek is a concrete continuous culvert carrying Nfa B082 over Cardiff Creek in Roane County, Tennessee. It was built in 1935, so it is 90 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. Its operating status is: posted for load restriction.

It carries about 150 vehicles a day, roughly 2% of them trucks, projected to reach 240 by 2042. The structure is 24 ft (7.3 m) long and 24 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesNfa B082
CrossesCardiff Creek
LocationJust SW of US29-SR382 JCT
RouteCounty Highway 82
CountyRoane County
StateTennessee
Coordinates35.88937, -84.61955
Functional classUrban Local

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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating46.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width24 ft (7.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2020)
Projected traffic240 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$85,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa B082 over Cardiff Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is Nfa B082 over Cardiff 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 April 2023.

How much traffic does Nfa B082 over Cardiff Creek carry?

About 150 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa B082 over Cardiff Creek?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m) and a deck 24 ft wide.

Who owns Nfa B082 over Cardiff Creek?

It is owned by the County Highway Agency.