US Bridges

Nfa A868 over Deidlman Creek

Fair

Sullivan County, Tennessee · Piney Rd-E of SR44 · Structure no. 820A8680001

Built
1984
41 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
49 ft
3 main spans
Daily traffic
115
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A868 over Deidlman Creek is a concrete continuous culvert carrying Nfa A868 over Deidlman Creek in Sullivan County, Tennessee. It was built in 1984, so it is 41 years old, younger 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 115 vehicles a day, roughly 2% of them trucks, projected to reach 184 by 2042. The structure is 49 ft (14.9 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNfa A868
CrossesDeidlman Creek
LocationPiney Rd-E of SR44
RouteCounty Highway 868
CountySullivan County
StateTennessee
Coordinates36.51512, -82.12646
Functional classRural 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 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 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 rating50 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length49 ft (14.9 m)
Longest span15 ft (4.6 m)
Deck width29 ft (8.7 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic115 (2020)
Projected traffic184 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$68,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A868 over Deidlman Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Nfa A868 over Deidlman 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 February 2024.

How much traffic does Nfa A868 over Deidlman Creek carry?

About 115 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A868 over Deidlman Creek?

The structure is 49 ft (14.9 m) long with a longest span of 15 ft (4.6 m) and a deck 29 ft wide.

Who owns Nfa A868 over Deidlman Creek?

It is owned by the County Highway Agency.