US Bridges

Nfa A323 over Smith Fork Creek

Fair

DeKalb County, Tennessee · 01 MI from Wilson CO Li · Structure no. 210A3230001

Built
1985
40 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
300 ft
5 main spans
Daily traffic
100
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A323 over Smith Fork Creek is a prestressed concrete stringer/multi-beam or girder carrying Nfa A323 over Smith Fork Creek in DeKalb County, Tennessee. It was built in 1985, so it is 40 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 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 100 vehicles a day, roughly 2% of them trucks, projected to reach 160 by 2042. The structure is 300 ft (91.4 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A323
CrossesSmith Fork Creek
Location01 MI from Wilson CO Li
RouteCounty Highway 323
Coordinates35.9925, -86.02555
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.5 US tons
Inventory rating34.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length300 ft (91.4 m)
Longest span67 ft (20.4 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic160 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 A323 over Smith Fork Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Nfa A323 over Smith Fork 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 November 2023.

How much traffic does Nfa A323 over Smith Fork Creek carry?

About 100 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A323 over Smith Fork Creek?

The structure is 300 ft (91.4 m) long with a longest span of 67 ft (20.4 m) and a deck 25 ft wide.

Who owns Nfa A323 over Smith Fork Creek?

It is owned by the County Highway Agency.