US Bridges

Nfa 1767 (sa 9108) over Couch Branch

Good

Wayne County, Tennessee · 0.8 MI W of Lawrence Co. · Structure no. 91017670017

Built
2015
10 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
94
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1767 (sa 9108) over Couch Branch is a concrete continuous culvert carrying Nfa 1767 (sa 9108) over Couch Branch in Wayne County, Tennessee. It was built in 2015, so it is 10 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 94 vehicles a day, roughly 2% of them trucks, projected to reach 142 by 2042. The structure is 22 ft (6.7 m) long and 19 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNfa 1767 (sa 9108)
CrossesCouch Branch
Location0.8 MI W of Lawrence Co.
RouteCounty Highway 1767
Coordinates35.17429, -87.59269
Functional classRural Minor Collector

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.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum 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 length22 ft (6.7 m)
Longest span10 ft (3.1 m)
Deck width19 ft (5.9 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic94 (2021)
Projected traffic142 by 2042
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 1767 (sa 9108) over Couch Branch built?

It was built in 2015, making it 10 years old in 2025.

What condition is Nfa 1767 (sa 9108) over Couch 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 November 2024.

How much traffic does Nfa 1767 (sa 9108) over Couch Branch carry?

About 94 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Nfa 1767 (sa 9108) over Couch Branch?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3.1 m) and a deck 19 ft wide.

Who owns Nfa 1767 (sa 9108) over Couch Branch?

It is owned by the County Highway Agency.