US Bridges

I55 NB over I-55 N.B. / SR-3

Fair

Shelby County, Tennessee · I55 / SR 3 JCT · Structure no. 79I00550029

Built
1960
65 years old, rebuilt 2001
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
225 ft
4 main spans
Daily traffic
131,916
2021 count
Owner
State
State Highway Agency

About this bridge

I55 NB over I-55 N.B. / SR-3 is a concrete continuous box beam or girders - single or spread carrying I55 NB over I-55 N.B. / SR-3 in Shelby County, Tennessee. It was built in 1960 and reconstructed in 2001, so it is 65 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 131,916 vehicles a day, roughly 8% of them trucks, projected to reach 211,066 by 2042. The structure is 225 ft (68.7 m) long and 98 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI55 NB
CrossesI-55 N.B. / SR-3
LocationI55 / SR 3 JCT
RouteInterstate 55
CountyShelby County
StateTennessee
Coordinates35.0635, -90.02275
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length225 ft (68.7 m)
Longest span62 ft (18.9 m)
Deck width98 ft (29.9 m)
Roadway width96 ft (29.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic131,916 (2021)
Projected traffic211,066 by 2042
Trucks8%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I55 NB over I-55 N.B. / SR-3 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2001.

What condition is I55 NB over I-55 N.B. / SR-3 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 NB over I-55 N.B. / SR-3 carry?

About 131,916 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is I55 NB over I-55 N.B. / SR-3?

The structure is 225 ft (68.7 m) long with a longest span of 62 ft (18.9 m) and a deck 98 ft wide.

Who owns I55 NB over I-55 N.B. / SR-3?

It is owned by the State Highway Agency.