US Bridges

Is 55 N over Rt M Glaize CR

Good

Jefferson County, Missouri · S 747 T 42 N R 6 E · Structure no. 32902

Built
2010
15 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
317 ft
3 main spans
Daily traffic
43,542
2024 count
Owner
State
State Highway Agency

About this bridge

Is 55 N over Rt M Glaize CR is a steel continuous stringer/multi-beam or girder carrying Is 55 N over Rt M Glaize CR in Jefferson County, Missouri. It was built in 2010, so it is 15 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 43,542 vehicles a day, roughly 17% of them trucks, projected to reach 80,553 by 2044. The structure is 317 ft (96.5 m) long and 67 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIs 55 N
CrossesRt M Glaize CR
LocationS 747 T 42 N R 6 E
RouteInterstate 55
Coordinates38.34829, -90.3956
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating31.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length317 ft (96.5 m)
Longest span133 ft (40.5 m)
Deck width67 ft (20.5 m)
Roadway width65 ft (19.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,542 (2024)
Projected traffic80,553 by 2044
Trucks17%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Is 55 N over Rt M Glaize CR built?

It was built in 2010, making it 15 years old in 2025.

What condition is Is 55 N over Rt M Glaize CR 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 November 2024.

How much traffic does Is 55 N over Rt M Glaize CR carry?

About 43,542 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is Is 55 N over Rt M Glaize CR?

The structure is 317 ft (96.5 m) long with a longest span of 133 ft (40.5 m) and a deck 67 ft wide.

Who owns Is 55 N over Rt M Glaize CR?

It is owned by the State Highway Agency.