US Bridges

Nfa A021 over Branch of Byrd Creek

Good

Stewart County, Tennessee · Lbl Road 206 · Structure no. 810A0100007

Built
1970
55 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
150
2020 count
Owner
Federal
U.S. Forest Service

About this bridge

Nfa A021 over Branch of Byrd Creek is a concrete continuous culvert carrying Nfa A021 over Branch of Byrd Creek in Stewart County, Tennessee. It was built in 1970, so it is 55 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 150 vehicles a day, roughly 5% of them trucks, projected to reach 240 by 2041. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa A021
CrossesBranch of Byrd Creek
LocationLbl Road 206
RouteFederal Lands Road 21
Coordinates36.59443, -87.9907
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2020)
Projected traffic240 by 2041
Trucks5%
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

OwnerU.S. Forest Service
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A021 over Branch of Byrd Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Nfa A021 over Branch of Byrd Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Nfa A021 over Branch of Byrd Creek carry?

About 150 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Nfa A021 over Branch of Byrd Creek?

The structure is 22 ft (6.7 m) long with a longest span of 12 ft (3.7 m).

Who owns Nfa A021 over Branch of Byrd Creek?

It is owned by the U.S. Forest Service and maintained by the State Highway Agency.