US Bridges

County RD 350 over Mckenzie CR

Good

Wayne County, Missouri · S 20 T 29 N R 3 E · Structure no. 36388

Built
2019
6 years old
Condition
Good
inspected December 2023
Type
Slab
Concrete
Length
90 ft
2 main spans
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 350 over Mckenzie CR is a concrete slab carrying County RD 350 over Mckenzie CR in Wayne County, Missouri. It was built in 2019, so it is 6 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 125 by 2044. The structure is 90 ft (27.4 m) long and 14 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCounty RD 350
CrossesMckenzie CR
LocationS 20 T 29 N R 3 E
RouteCounty Highway 159
CountyWayne County
StateMissouri
Coordinates37.16306, -90.68639
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.5 US tons
Inventory rating37.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length90 ft (27.4 m)
Longest span52 ft (15.9 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic125 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 RD 350 over Mckenzie CR built?

It was built in 2019, making it 6 years old in 2025.

What condition is County RD 350 over Mckenzie 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 December 2023.

How much traffic does County RD 350 over Mckenzie CR carry?

About 100 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 350 over Mckenzie CR?

The structure is 90 ft (27.4 m) long with a longest span of 52 ft (15.9 m) and a deck 14 ft wide.

Who owns County RD 350 over Mckenzie CR?

It is owned by the County Highway Agency.