US Bridges

Mission RD over Trib of Fly CR

Fair

Vernon County, Missouri · S 36 T 36 N R 29 W · Structure no. 32439

Built
2006
19 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

Mission RD over Trib of Fly CR is a steel stringer/multi-beam or girder carrying Mission RD over Trib of Fly CR in Vernon County, Missouri. It was built in 2006, so it is 19 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 15 vehicles a day, roughly 10% of them trucks, projected to reach 20 by 2044. The structure is 46 ft (13.9 m) long and 22 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesMission RD
CrossesTrib of Fly CR
LocationS 36 T 36 N R 29 W
RouteCounty Highway 346
Coordinates37.85021, -94.07371
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
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating39.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length46 ft (13.9 m)
Longest span43 ft (13 m)
Deck width22 ft (6.7 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2024)
Projected traffic20 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Mission RD over Trib of Fly CR built?

It was built in 2006, making it 19 years old in 2025.

What condition is Mission RD over Trib of Fly 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 January 2024.

How much traffic does Mission RD over Trib of Fly CR carry?

About 15 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Mission RD over Trib of Fly CR?

The structure is 46 ft (13.9 m) long with a longest span of 43 ft (13 m) and a deck 22 ft wide.

Who owns Mission RD over Trib of Fly CR?

It is owned by the County Highway Agency.