US Bridges

James RD over Marmaton Rvr

Fair

Vernon County, Missouri · S 17 T 36 N R 31 W · Structure no. 21337

Built
1994
31 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
238 ft
3 main spans
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

James RD over Marmaton Rvr is a prestressed concrete stringer/multi-beam or girder carrying James RD over Marmaton Rvr in Vernon County, Missouri. It was built in 1994, so it is 31 years old, younger 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 130 by 2043. The structure is 238 ft (72.5 m) long and 27 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesJames RD
CrossesMarmaton Rvr
LocationS 17 T 36 N R 31 W
RouteCounty Highway 301
Coordinates37.90914, -94.37278
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.
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 rating77.4 US tons
Inventory rating46.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length238 ft (72.5 m)
Longest span95 ft (29 m)
Deck width27 ft (8.1 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic130 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 James RD over Marmaton Rvr built?

It was built in 1994, making it 31 years old in 2025.

What condition is James RD over Marmaton 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 December 2023.

How much traffic does James RD over Marmaton Rvr carry?

About 100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is James RD over Marmaton Rvr?

The structure is 238 ft (72.5 m) long with a longest span of 95 ft (29 m) and a deck 27 ft wide.

Who owns James RD over Marmaton Rvr?

It is owned by the County Highway Agency.