US Bridges

Is 55 N over Diversion Channel

Good

Cape Girardeau County, Missouri · S 26 T 30 N R 13 E · Structure no. 29332

Built
2002
23 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,472 ft
4 main spans
Daily traffic
22,967
2024 count
Owner
State
State Highway Agency

About this bridge

Is 55 N over Diversion Channel is a steel continuous stringer/multi-beam or girder carrying Is 55 N over Diversion Channel in Cape Girardeau County, Missouri. It was built in 2002, so it is 23 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 22,967 vehicles a day, roughly 22% of them trucks, projected to reach 44,786 by 2044. The structure is 1,472 ft (448.6 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIs 55 N
CrossesDiversion Channel
LocationS 26 T 30 N R 13 E
RouteInterstate 55
Coordinates37.24639, -89.56692
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.3 US tons
Inventory rating47.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+11 approach)
Design loadHS 25 or greater
Structure length1,472 ft (448.6 m)
Longest span158 ft (48.3 m)
Deck width52 ft (15.8 m)
Roadway width49 ft (15 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,967 (2024)
Projected traffic44,786 by 2044
Trucks22%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Is 55 N over Diversion Channel built?

It was built in 2002, making it 23 years old in 2025.

What condition is Is 55 N over Diversion Channel in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does Is 55 N over Diversion Channel carry?

About 22,967 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is Is 55 N over Diversion Channel?

The structure is 1,472 ft (448.6 m) long with a longest span of 158 ft (48.3 m) and a deck 52 ft wide.

Who owns Is 55 N over Diversion Channel?

It is owned by the State Highway Agency.