US Bridges

Nfa J118 over Cumby Bayou

Good

Shelby County, Tennessee · Lane Ave - Memphis · Structure no. 790J1180001

Built
1985
40 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
1,230
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa J118 over Cumby Bayou is a concrete culvert carrying Nfa J118 over Cumby Bayou in Shelby County, Tennessee. It was built in 1985, so it is 40 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 1,230 vehicles a day, roughly 2% of them trucks, projected to reach 1,968 by 2041. The structure is 21 ft (6.4 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNfa J118
CrossesCumby Bayou
LocationLane Ave - Memphis
RouteCity Street 118
CountyShelby County
StateTennessee
Coordinates35.15172, -90.03345
Functional classUrban 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.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span20 ft (6.1 m)
Deck width71 ft (21.6 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,230 (2020)
Projected traffic1,968 by 2041
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 J118 over Cumby Bayou built?

It was built in 1985, making it 40 years old in 2025.

What condition is Nfa J118 over Cumby Bayou 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 March 2023.

How much traffic does Nfa J118 over Cumby Bayou carry?

About 1,230 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa J118 over Cumby Bayou?

The structure is 21 ft (6.4 m) long with a longest span of 20 ft (6.1 m) and a deck 71 ft wide.

Who owns Nfa J118 over Cumby Bayou?

It is owned by the City or Municipal Highway Agency.