US Bridges

Nfa A601 over Furnace Creek

Good

Johnson County, Tennessee · At High School in Mtn Cty · Structure no. 460A4350001

Built
2018
7 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
37 ft
1 main span
Daily traffic
1,910
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A601 over Furnace Creek is a concrete culvert carrying Nfa A601 over Furnace Creek in Johnson County, Tennessee. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,910 vehicles a day, roughly 2% of them trucks, projected to reach 3,056 by 2042. The structure is 37 ft (11.4 m) long and 90 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A601
CrossesFurnace Creek
LocationAt High School in Mtn Cty
RouteCity Street 122
Coordinates36.47989, -81.79886
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length37 ft (11.4 m)
Longest span37 ft (11.4 m)
Deck width90 ft (27.4 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,910 (2020)
Projected traffic3,056 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A601 over Furnace Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is Nfa A601 over Furnace 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 April 2024.

How much traffic does Nfa A601 over Furnace Creek carry?

About 1,910 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A601 over Furnace Creek?

The structure is 37 ft (11.4 m) long with a longest span of 37 ft (11.4 m) and a deck 90 ft wide.

Who owns Nfa A601 over Furnace Creek?

It is owned by the City or Municipal Highway Agency.