US Bridges

Katy Track RD over Trib Robinson Br

Fair

Vernon County, Missouri · S 18 T 36 N R 29 W · Structure no. 21653

Built
1930
95 years old, rebuilt 1993
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

Katy Track RD over Trib Robinson Br is a steel stringer/multi-beam or girder carrying Katy Track RD over Trib Robinson Br in Vernon County, Missouri. It was built in 1930 and reconstructed in 1993, so it is 95 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 5 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 26 by 2044. The structure is 41 ft (12.5 m) long and 19 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesKaty Track RD
CrossesTrib Robinson Br
LocationS 18 T 36 N R 29 W
RouteCounty Highway 317
CountyVernon County
StateMissouri
Coordinates37.88891, -94.1664
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.2 US tons
Inventory rating67.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length41 ft (12.5 m)
Longest span38 ft (11.6 m)
Deck width19 ft (5.9 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic26 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Katy Track RD over Trib Robinson Br built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1993.

What condition is Katy Track RD over Trib Robinson Br 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 Katy Track RD over Trib Robinson Br carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Katy Track RD over Trib Robinson Br?

The structure is 41 ft (12.5 m) long with a longest span of 38 ft (11.6 m) and a deck 19 ft wide.

Who owns Katy Track RD over Trib Robinson Br?

It is owned by the County Highway Agency.