US Bridges

County Road 409 over Youngs CR

Good

Callaway County, Missouri · S 34 T 47 N R 9 W · Structure no. 37421

Built
2025
0 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
94 ft
1 main span
Daily traffic
35
2025 count
Owner
County
County Highway Agency

About this bridge

County Road 409 over Youngs CR is a steel stringer/multi-beam or girder carrying County Road 409 over Youngs CR in Callaway County, Missouri. It was built in 2025, so it is 0 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 53 by 2045. The structure is 94 ft (28.7 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCounty Road 409
CrossesYoungs CR
LocationS 34 T 47 N R 9 W
RouteCounty Highway 308
CountyCallaway County
StateMissouri
Coordinates38.81026, -91.92173
Functional classRural Local

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.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusNew structure not yet open to traffic
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.4 US tons
Inventory rating41.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length94 ft (28.7 m)
Longest span92 ft (27.9 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2025)
Projected traffic53 by 2045
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty 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 County Road 409 over Youngs CR built?

It was built in 2025, making it 0 years old in 2025.

What condition is County Road 409 over Youngs CR 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 January 2025.

How much traffic does County Road 409 over Youngs CR carry?

About 35 vehicles per day (2025 count), of which roughly 10% are trucks.

How long is County Road 409 over Youngs CR?

The structure is 94 ft (28.7 m) long with a longest span of 92 ft (27.9 m) and a deck 25 ft wide.

Who owns County Road 409 over Youngs CR?

It is owned by the County Highway Agency.