US Bridges

Rt K S over Belleau CR

Fair

St. Charles County, Missouri · S 33 T 47 N R 3 E · Structure no. 3710

Built
1987
38 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
59,104
2024 count
Owner
State
State Highway Agency

About this bridge

Rt K S over Belleau CR is a concrete culvert carrying Rt K S over Belleau CR in St. Charles County, Missouri. It was built in 1987, so it is 38 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 5 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 59,104 vehicles a day, roughly 5% of them trucks, projected to reach 106,387 by 2044. The structure is 33 ft (10 m) long. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesRt K S
CrossesBelleau CR
LocationS 33 T 47 N R 3 E
RouteState Highway 0K
CountySt. Charles County
StateMissouri
Coordinates38.79072, -90.6985
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.2 US tons
Inventory rating57.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59,104 (2024)
Projected traffic106,387 by 2044
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 Rt K S over Belleau CR built?

It was built in 1987, making it 38 years old in 2025.

What condition is Rt K S over Belleau 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 November 2023.

How much traffic does Rt K S over Belleau CR carry?

About 59,104 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Rt K S over Belleau CR?

The structure is 33 ft (10 m) long with a longest span of 10 ft (3 m).

Who owns Rt K S over Belleau CR?

It is owned by the State Highway Agency.