US Bridges

Mo 370 W over Cole CR

Fair

St. Charles County, Missouri · S 13 T 47 N R 4 E · Structure no. 4123

Built
1994
31 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
312 ft
5 main spans
Daily traffic
21,656
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 370 W over Cole CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Mo 370 W over Cole CR in St. Charles County, Missouri. It was built in 1994, so it is 31 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 21,656 vehicles a day, roughly 5% of them trucks, projected to reach 36,815 by 2044. The structure is 312 ft (95.1 m) long and 70 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesMo 370 W
CrossesCole CR
LocationS 13 T 47 N R 4 E
RouteState Highway 370
CountySt. Charles County
StateMissouri
Coordinates38.82584, -90.52529
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating105.2 US tons
Inventory rating62.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length312 ft (95.1 m)
Longest span63 ft (19.3 m)
Deck width70 ft (21.2 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,656 (2024)
Projected traffic36,815 by 2044
Trucks5%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 Mo 370 W over Cole CR built?

It was built in 1994, making it 31 years old in 2025.

What condition is Mo 370 W over Cole CR 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 October 2023.

How much traffic does Mo 370 W over Cole CR carry?

About 21,656 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Mo 370 W over Cole CR?

The structure is 312 ft (95.1 m) long with a longest span of 63 ft (19.3 m) and a deck 70 ft wide.

Who owns Mo 370 W over Cole CR?

It is owned by the State Highway Agency.