US Bridges

Nfa K300 over Workhouse Bayou

Fair

Shelby County, Tennessee · Guernsey Ave - Memphis · Structure no. 790B6380001

Built
1940
85 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
470
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa K300 over Workhouse Bayou is a concrete continuous culvert carrying Nfa K300 over Workhouse Bayou in Shelby County, Tennessee. It was built in 1940, so it is 85 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 470 vehicles a day, roughly 2% of them trucks, projected to reach 752 by 2041. The structure is 26 ft (7.9 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNfa K300
CrossesWorkhouse Bayou
LocationGuernsey Ave - Memphis
RouteCity Street 300
CountyShelby County
StateTennessee
Coordinates35.15853, -89.9452
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating32.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width69 ft (21 m)
Roadway width68 ft (20.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic470 (2020)
Projected traffic752 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 K300 over Workhouse Bayou built?

It was built in 1940, making it 85 years old in 2025.

What condition is Nfa K300 over Workhouse Bayou in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does Nfa K300 over Workhouse Bayou carry?

About 470 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa K300 over Workhouse Bayou?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 69 ft wide.

Who owns Nfa K300 over Workhouse Bayou?

It is owned by the City or Municipal Highway Agency.