US Bridges

FAU 23 over Walnut Grove RD / I-240

Fair

Shelby County, Tennessee · SR-23 / I-240 · Structure no. 79I02400117

Built
2008
17 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
303 ft
2 main spans
Daily traffic
52,343
2021 count
Owner
State
State Highway Agency

About this bridge

FAU 23 over Walnut Grove RD / I-240 is a steel continuous stringer/multi-beam or girder carrying FAU 23 over Walnut Grove RD / I-240 in Shelby County, Tennessee. It was built in 2008, so it is 17 years old, younger 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 52,343 vehicles a day, roughly 8% of them trucks, projected to reach 57,968 by 2041. The structure is 303 ft (92.4 m) long and 102 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesFAU 23
CrossesWalnut Grove RD / I-240
LocationSR-23 / I-240
RouteState Highway 23
CountyShelby County
StateTennessee
Coordinates35.13089, -89.86814
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length303 ft (92.4 m)
Longest span169 ft (51.5 m)
Deck width102 ft (31.1 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52,343 (2021)
Projected traffic57,968 by 2041
Trucks8%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed7.5 mi (12 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAU 23 over Walnut Grove RD / I-240 built?

It was built in 2008, making it 17 years old in 2025.

What condition is FAU 23 over Walnut Grove RD / I-240 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 FAU 23 over Walnut Grove RD / I-240 carry?

About 52,343 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is FAU 23 over Walnut Grove RD / I-240?

The structure is 303 ft (92.4 m) long with a longest span of 169 ft (51.5 m) and a deck 102 ft wide.

Who owns FAU 23 over Walnut Grove RD / I-240?

It is owned by the State Highway Agency.