US Bridges

Nfa M340 over Channel 3 DR / Riverside

Poor

Shelby County, Tennessee · Channel 3 Dr-Memphis · Structure no. 790B5900001

Built
1948
77 years old
Condition
Poor
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
88 ft
2 main spans
Daily traffic
480
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa M340 over Channel 3 DR / Riverside is a steel stringer/multi-beam or girder carrying Nfa M340 over Channel 3 DR / Riverside in Shelby County, Tennessee. It was built in 1948, so it is 77 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 480 vehicles a day, roughly 2% of them trucks, projected to reach 768 by 2040. The structure is 88 ft (26.8 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa M340
CrossesChannel 3 DR / Riverside
LocationChannel 3 Dr-Memphis
RouteCity Street 340
CountyShelby County
StateTennessee
Coordinates35.12703, -90.0668
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadRailroad
Structure length88 ft (26.8 m)
Longest span44 ft (13.4 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic480 (2020)
Projected traffic768 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed123.7 mi (199 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$658,000 (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa M340 over Channel 3 DR / Riverside built?

It was built in 1948, making it 77 years old in 2025.

What condition is Nfa M340 over Channel 3 DR / Riverside in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2025.

How much traffic does Nfa M340 over Channel 3 DR / Riverside carry?

About 480 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa M340 over Channel 3 DR / Riverside?

The structure is 88 ft (26.8 m) long with a longest span of 44 ft (13.4 m) and a deck 34 ft wide.

Who owns Nfa M340 over Channel 3 DR / Riverside?

It is owned by the City or Municipal Highway Agency.