US Bridges

Is 55 N over Cst Lasalle Ave

Fair

Cape Girardeau County, Missouri · S 791 T 31 N R 13 E · Structure no. 31625

Built
2006
19 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
215 ft
3 main spans
Daily traffic
20,236
2024 count
Owner
State
State Highway Agency

About this bridge

Is 55 N over Cst Lasalle Ave is a prestressed concrete continuous stringer/multi-beam or girder carrying Is 55 N over Cst Lasalle Ave in Cape Girardeau County, Missouri. It was built in 2006, so it is 19 years old, younger than the Missouri average of 45.1 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 20,236 vehicles a day, roughly 22% of them trucks, projected to reach 39,460 by 2044. The structure is 215 ft (65.6 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIs 55 N
CrossesCst Lasalle Ave
LocationS 791 T 31 N R 13 E
RouteInterstate 55
Coordinates37.38218, -89.61736
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.3 US tons
Inventory rating51.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length215 ft (65.6 m)
Longest span82 ft (25 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,236 (2024)
Projected traffic39,460 by 2044
Trucks22%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 Is 55 N over Cst Lasalle Ave built?

It was built in 2006, making it 19 years old in 2025.

What condition is Is 55 N over Cst Lasalle Ave 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 November 2023.

How much traffic does Is 55 N over Cst Lasalle Ave carry?

About 20,236 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is Is 55 N over Cst Lasalle Ave?

The structure is 215 ft (65.6 m) long with a longest span of 82 ft (25 m) and a deck 41 ft wide.

Who owns Is 55 N over Cst Lasalle Ave?

It is owned by the State Highway Agency.