US Bridges

I55-LL 297766D over Icg Railroad

Fair

Shelby County, Tennessee · 1 MI W of I240 JCT · Structure no. 79I00550048

Built
1963
62 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
521 ft
5 main spans
Daily traffic
97,284
2021 count
Owner
State
State Highway Agency

About this bridge

I55-LL 297766D over Icg Railroad is a steel continuous stringer/multi-beam or girder carrying I55-LL 297766D over Icg Railroad in Shelby County, Tennessee. It was built in 1963, so it is 62 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 97,284 vehicles a day, roughly 8% of them trucks, projected to reach 135,360 by 2040. The structure is 521 ft (158.8 m) long and 47 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI55-LL 297766D
CrossesIcg Railroad
Location1 MI W of I240 JCT
RouteInterstate 55
CountyShelby County
StateTennessee
Coordinates35.07639, -90.04442
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length521 ft (158.8 m)
Longest span117 ft (35.7 m)
Deck width47 ft (14.3 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic97,284 (2021)
Projected traffic135,360 by 2040
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.5 million (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I55-LL 297766D over Icg Railroad built?

It was built in 1963, making it 62 years old in 2025.

What condition is I55-LL 297766D over Icg Railroad 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 December 2024.

How much traffic does I55-LL 297766D over Icg Railroad carry?

About 97,284 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is I55-LL 297766D over Icg Railroad?

The structure is 521 ft (158.8 m) long with a longest span of 117 ft (35.7 m) and a deck 47 ft wide.

Who owns I55-LL 297766D over Icg Railroad?

It is owned by the State Highway Agency.