US Bridges

County Road 419 over N Wyaconda Rvr

Good

Scotland County, Missouri · S 26 T 66 N R 10 W · Structure no. 18125

Built
1995
30 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
145 ft
3 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

County Road 419 over N Wyaconda Rvr is a prestressed concrete continuous stringer/multi-beam or girder carrying County Road 419 over N Wyaconda Rvr in Scotland County, Missouri. It was built in 1995, so it is 30 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 63 by 2044. The structure is 145 ft (44.2 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCounty Road 419
CrossesN Wyaconda Rvr
LocationS 26 T 66 N R 10 W
RouteCounty Highway 174
Coordinates40.49703, -91.96969
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.4 US tons
Inventory rating47.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span55 ft (16.8 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic63 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County Road 419 over N Wyaconda Rvr built?

It was built in 1995, making it 30 years old in 2025.

What condition is County Road 419 over N Wyaconda Rvr 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 June 2023.

How much traffic does County Road 419 over N Wyaconda Rvr carry?

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County Road 419 over N Wyaconda Rvr?

The structure is 145 ft (44.2 m) long with a longest span of 55 ft (16.8 m) and a deck 26 ft wide.

Who owns County Road 419 over N Wyaconda Rvr?

It is owned by the County Highway Agency.