US Bridges

County RD 349 B over Mckenzie CR

FairPosted for load

Wayne County, Missouri · S 10 T 29 N R 3 E · Structure no. 19071

Built
1940
85 years old, rebuilt 1986
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
6
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 349 B over Mckenzie CR is a steel stringer/multi-beam or girder carrying County RD 349 B over Mckenzie CR in Wayne County, Missouri. It was built in 1940 and reconstructed in 1986, so it is 85 years old, older 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. Its operating status is: posted for load restriction.

It carries about 6 vehicles a day, roughly 10% of them trucks, projected to reach 8 by 2044. The structure is 32 ft (9.8 m) long and 11 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesCounty RD 349 B
CrossesMckenzie CR
LocationS 10 T 29 N R 3 E
RouteCounty Highway 210
CountyWayne County
StateMissouri
Coordinates37.198, -90.70752
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.8 US tons
Inventory rating12.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width11 ft (3.4 m)
Roadway width11 ft (3.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6 (2024)
Projected traffic8 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$311,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 349 B over Mckenzie CR built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1986.

What condition is County RD 349 B over Mckenzie 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 December 2023.

How much traffic does County RD 349 B over Mckenzie CR carry?

About 6 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 349 B over Mckenzie CR?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 11 ft wide.

Who owns County RD 349 B over Mckenzie CR?

It is owned by the County Highway Agency.