US Bridges

Mo 364 W over Dardenne CR Bike Path

Fair

St. Charles County, Missouri · S 15 T 46 N R 3 E · Structure no. 34600

Built
2014
11 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
216 ft
2 main spans
Daily traffic
22,855
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 364 W over Dardenne CR Bike Path is a prestressed concrete continuous stringer/multi-beam or girder carrying Mo 364 W over Dardenne CR Bike Path in St. Charles County, Missouri. It was built in 2014, so it is 11 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 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 22,855 vehicles a day, roughly 5% of them trucks, projected to reach 38,854 by 2044. The structure is 216 ft (65.8 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMo 364 W
CrossesDardenne CR Bike Path
LocationS 15 T 46 N R 3 E
RouteState Highway 364
CountySt. Charles County
StateMissouri
Coordinates38.74556, -90.6775
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure9 ExcellentNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating85.3 US tons
Inventory rating51.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length216 ft (65.8 m)
Longest span106 ft (32.3 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,855 (2024)
Projected traffic38,854 by 2044
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Mo 364 W over Dardenne CR Bike Path built?

It was built in 2014, making it 11 years old in 2025.

What condition is Mo 364 W over Dardenne CR Bike Path 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 September 2023.

How much traffic does Mo 364 W over Dardenne CR Bike Path carry?

About 22,855 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Mo 364 W over Dardenne CR Bike Path?

The structure is 216 ft (65.8 m) long with a longest span of 106 ft (32.3 m) and a deck 35 ft wide.

Who owns Mo 364 W over Dardenne CR Bike Path?

It is owned by the State Highway Agency.