US Bridges

Nfa B272 over Black Bayou

Fair

Shelby County, Tennessee · Dunn RD - Memphis · Structure no. 790B6230001

Built
1955
70 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
67 ft
3 main spans
Daily traffic
1,770
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa B272 over Black Bayou is a concrete tee beam carrying Nfa B272 over Black Bayou in Shelby County, Tennessee. It was built in 1955, so it is 70 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 5 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 1,770 vehicles a day, roughly 2% of them trucks, projected to reach 2,832 by 2041. The structure is 67 ft (20.4 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNfa B272
CrossesBlack Bayou
LocationDunn RD - Memphis
RouteCity Street 272
CountyShelby County
StateTennessee
Coordinates35.09019, -89.93142
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length67 ft (20.4 m)
Longest span23 ft (7 m)
Deck width46 ft (14 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,770 (2020)
Projected traffic2,832 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 B272 over Black Bayou built?

It was built in 1955, making it 70 years old in 2025.

What condition is Nfa B272 over Black 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 B272 over Black Bayou carry?

About 1,770 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa B272 over Black Bayou?

The structure is 67 ft (20.4 m) long with a longest span of 23 ft (7 m) and a deck 46 ft wide.

Who owns Nfa B272 over Black Bayou?

It is owned by the City or Municipal Highway Agency.