US Bridges

Nfa A424 over Shiloh Branch

Good

Hardin County, Tennessee · Shiloh Br South SR 142 · Structure no. 360A4240001

Built
1991
34 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
120
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A424 over Shiloh Branch is a concrete continuous culvert carrying Nfa A424 over Shiloh Branch in Hardin County, Tennessee. It was built in 1991, so it is 34 years old, younger 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 120 vehicles a day, roughly 2% of them trucks, projected to reach 192 by 2040. The structure is 32 ft (9.9 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNfa A424
CrossesShiloh Branch
LocationShiloh Br South SR 142
RouteCounty Highway 424
Coordinates35.13831, -88.36839
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length32 ft (9.9 m)
Longest span10 ft (3 m)
Deck width31 ft (9.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2020)
Projected traffic192 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 A424 over Shiloh Branch built?

It was built in 1991, making it 34 years old in 2025.

What condition is Nfa A424 over Shiloh Branch 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 April 2024.

How much traffic does Nfa A424 over Shiloh Branch carry?

About 120 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A424 over Shiloh Branch?

The structure is 32 ft (9.9 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns Nfa A424 over Shiloh Branch?

It is owned by the County Highway Agency.