US Bridges

County RD 300 over Trib Marmaton Rvr

Fair

Vernon County, Missouri · S 28 T 36 N R 33 W · Structure no. 28523

Built
2000
25 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 300 over Trib Marmaton Rvr is a steel stringer/multi-beam or girder carrying County RD 300 over Trib Marmaton Rvr in Vernon County, Missouri. It was built in 2000, so it is 25 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 24 ft (7.3 m) long and 30 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesCounty RD 300
CrossesTrib Marmaton Rvr
LocationS 28 T 36 N R 33 W
RouteCounty Highway 196
CountyVernon County
StateMissouri
Coordinates37.87234, -94.58194
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating46.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length24 ft (7.3 m)
Longest span21 ft (6.4 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9 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 closed14.3 mi (23 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 300 over Trib Marmaton Rvr built?

It was built in 2000, making it 25 years old in 2025.

What condition is County RD 300 over Trib 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 County RD 300 over Trib Marmaton Rvr carry?

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

How long is County RD 300 over Trib Marmaton Rvr?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.4 m) and a deck 30 ft wide.

Who owns County RD 300 over Trib Marmaton Rvr?

It is owned by the County Highway Agency.