US Bridges

Nfa A028 over Smith Fork Creek

Fair

DeKalb County, Tennessee · In Liberty · Structure no. 210A0280001

Built
1988
37 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
246 ft
4 main spans
Daily traffic
530
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A028 over Smith Fork Creek is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa A028 over Smith Fork Creek in DeKalb County, Tennessee. It was built in 1988, so it is 37 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 530 vehicles a day, roughly 4% of them trucks, projected to reach 848 by 2042. The structure is 246 ft (75.1 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesNfa A028
CrossesSmith Fork Creek
LocationIn Liberty
RouteCity Street 28
CountyDeKalb County
StateTennessee
Coordinates36.00827, -85.96205
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length246 ft (75.1 m)
Longest span60 ft (18.4 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic530 (2020)
Projected traffic848 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A028 over Smith Fork Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Nfa A028 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 A028 over Smith Fork Creek carry?

About 530 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A028 over Smith Fork Creek?

The structure is 246 ft (75.1 m) long with a longest span of 60 ft (18.4 m) and a deck 30 ft wide.

Who owns Nfa A028 over Smith Fork Creek?

It is owned by the City or Municipal Highway Agency.