US Bridges

Nfa A392 over Gourdneck Cove Branch

Good

Marion County, Tennessee · 5 MI W of I24 · Structure no. 580A3920007

Built
1994
31 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
130
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A392 over Gourdneck Cove Branch is a concrete continuous culvert carrying Nfa A392 over Gourdneck Cove Branch in Marion County, Tennessee. It was built in 1994, so it is 31 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 130 vehicles a day, roughly 1% of them trucks, projected to reach 208 by 2040. The structure is 31 ft (9.4 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A392
CrossesGourdneck Cove Branch
Location5 MI W of I24
RouteCounty Highway 392
Coordinates35.07475, -85.80731
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2020)
Projected traffic208 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$64,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A392 over Gourdneck Cove Branch built?

It was built in 1994, making it 31 years old in 2025.

What condition is Nfa A392 over Gourdneck Cove 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 October 2024.

How much traffic does Nfa A392 over Gourdneck Cove Branch carry?

About 130 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa A392 over Gourdneck Cove Branch?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns Nfa A392 over Gourdneck Cove Branch?

It is owned by the County Highway Agency.