US Bridges

Bates RD over Dardenne CR

Fair

St. Charles County, Missouri · S 1669 T 46 N R 3 E · Structure no. 32117

Built
2009
16 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
27 ft
3 main spans
Daily traffic
2,525
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Bates RD over Dardenne CR is a concrete continuous culvert carrying Bates RD over Dardenne CR in St. Charles County, Missouri. It was built in 2009, so it is 16 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 2,525 vehicles a day, roughly 2% of them trucks, projected to reach 3,914 by 2044. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesBates RD
CrossesDardenne CR
LocationS 1669 T 46 N R 3 E
RouteCity Street 0
CountySt. Charles County
StateMissouri
Coordinates38.76332, -90.7357
Functional classUrban Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span9 ft (2.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,525 (2024)
Projected traffic3,914 by 2044
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCounty 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 Bates RD over Dardenne CR built?

It was built in 2009, making it 16 years old in 2025.

What condition is Bates RD over Dardenne 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 January 2024.

How much traffic does Bates RD over Dardenne CR carry?

About 2,525 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Bates RD over Dardenne CR?

The structure is 27 ft (8.2 m) long with a longest span of 9 ft (2.6 m).

Who owns Bates RD over Dardenne CR?

It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.