US Bridges

Nfa A424 over Brager Hollow Branch

Fair

DeKalb County, Tennessee · Curtis ST - 1 M S of SR26 · Structure no. 210A4240001

Built
1980
45 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
33 ft
3 main spans
Daily traffic
40
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A424 over Brager Hollow Branch is a concrete continuous culvert carrying Nfa A424 over Brager Hollow Branch in DeKalb County, Tennessee. It was built in 1980, so it is 45 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 40 vehicles a day, roughly 2% of them trucks, projected to reach 64 by 2042. The structure is 33 ft (10.1 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 A424
CrossesBrager Hollow Branch
LocationCurtis ST - 1 M S of SR26
RouteCity Street 424
CountyDeKalb County
StateTennessee
Coordinates36.01053, -85.94489
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating67.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2020)
Projected traffic64 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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 A424 over Brager Hollow Branch built?

It was built in 1980, making it 45 years old in 2025.

What condition is Nfa A424 over Brager Hollow Branch 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 December 2023.

How much traffic does Nfa A424 over Brager Hollow Branch carry?

About 40 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A424 over Brager Hollow Branch?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns Nfa A424 over Brager Hollow Branch?

It is owned by the City or Municipal Highway Agency.