US Bridges

Is 55 S over Cst Mcnutt ST

Good

Jefferson County, Missouri · S 30 T 41 N R 5 E · Structure no. 37408

Built
2024
1 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
143 ft
2 main spans
Daily traffic
39,629
2023 count
Owner
State
State Highway Agency

About this bridge

Is 55 S over Cst Mcnutt ST is a prestressed concrete box beam or girders - single or spread carrying Is 55 S over Cst Mcnutt ST in Jefferson County, Missouri. It was built in 2024, so it is 1 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: new structure not yet open to traffic.

It carries about 39,629 vehicles a day, roughly 15% of them trucks, projected to reach 73,314 by 2043. The structure is 143 ft (43.7 m) long and 121 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIs 55 S
CrossesCst Mcnutt ST
LocationS 30 T 41 N R 5 E
RouteInterstate 55
Coordinates38.25507, -90.40269
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusNew structure not yet open to traffic
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.4 US tons
Inventory rating44.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length143 ft (43.7 m)
Longest span75 ft (22.9 m)
Deck width121 ft (36.8 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,629 (2023)
Projected traffic73,314 by 2043
Trucks15%
Lanes on structure4
Traffic directionTwo-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 S over Cst Mcnutt ST built?

It was built in 2024, making it 1 years old in 2025.

What condition is Is 55 S over Cst Mcnutt ST 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 June 2023.

How much traffic does Is 55 S over Cst Mcnutt ST carry?

About 39,629 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Is 55 S over Cst Mcnutt ST?

The structure is 143 ft (43.7 m) long with a longest span of 75 ft (22.9 m) and a deck 121 ft wide.

Who owns Is 55 S over Cst Mcnutt ST?

It is owned by the State Highway Agency.