US Bridges

Nfa A792 over Grassy Fork Creek

Good

Cocke County, Tennessee · 3.8 M E of Hartford · Structure no. 150A3100001

Built
2017
8 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
10
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A792 over Grassy Fork Creek is a concrete continuous culvert carrying Nfa A792 over Grassy Fork Creek in Cocke County, Tennessee. It was built in 2017, so it is 8 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 10 vehicles a day, roughly 2% of them trucks, projected to reach 16 by 2042. The structure is 26 ft (7.9 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A792
CrossesGrassy Fork Creek
Location3.8 M E of Hartford
RouteCounty Highway 792
Coordinates35.81441, -83.07843
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than 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 Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length26 ft (7.9 m)
Longest span10 ft (3 m)
Deck width22 ft (6.6 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2020)
Projected traffic16 by 2042
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A792 over Grassy Fork Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is Nfa A792 over Grassy Fork 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 November 2024.

How much traffic does Nfa A792 over Grassy Fork Creek carry?

About 10 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A792 over Grassy Fork Creek?

The structure is 26 ft (7.9 m) long with a longest span of 10 ft (3 m) and a deck 22 ft wide.

Who owns Nfa A792 over Grassy Fork Creek?

It is owned by the County Highway Agency.