US Bridges

County RD 234 over North Rvr

Fair

Marion County, Missouri · S 35 T 58 N R 7 W · Structure no. 17432

Built
1974
51 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
204 ft
3 main spans
Daily traffic
75
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 234 over North Rvr is a steel continuous stringer/multi-beam or girder carrying County RD 234 over North Rvr in Marion County, Missouri. It was built in 1974, so it is 51 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.

It carries about 75 vehicles a day, roughly 10% of them trucks, projected to reach 94 by 2043. The structure is 204 ft (62.2 m) long and 26 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesCounty RD 234
CrossesNorth Rvr
LocationS 35 T 58 N R 7 W
RouteCounty Highway 152
CountyMarion County
StateMissouri
Coordinates39.78689, -91.64989
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating47.6 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length204 ft (62.2 m)
Longest span78 ft (23.8 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic94 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 RD 234 over North Rvr built?

It was built in 1974, making it 51 years old in 2025.

What condition is County RD 234 over North Rvr 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 February 2023.

How much traffic does County RD 234 over North Rvr carry?

About 75 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 234 over North Rvr?

The structure is 204 ft (62.2 m) long with a longest span of 78 ft (23.8 m) and a deck 26 ft wide.

Who owns County RD 234 over North Rvr?

It is owned by the County Highway Agency.