US Bridges

9002 over Knob CR

Fair

Bates County, Missouri · S 16 T 41 N R 32 W · Structure no. 20441

Built
1996
29 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
75 ft
1 main span
Daily traffic
65
2023 count
Owner
County
County Highway Agency

About this bridge

9002 over Knob CR is a steel stringer/multi-beam or girder carrying 9002 over Knob CR in Bates County, Missouri. It was built in 1996, so it is 29 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 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 65 vehicles a day, roughly 10% of them trucks, projected to reach 85 by 2043. The structure is 75 ft (22.9 m) long and 18 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries9002
CrossesKnob CR
LocationS 16 T 41 N R 32 W
RouteCounty Highway 260
CountyBates County
StateMissouri
Coordinates38.35339, -94.46673
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 protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.4 US tons
Inventory rating41.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length75 ft (22.9 m)
Longest span73 ft (22.3 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2023)
Projected traffic85 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$385,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 9002 over Knob CR built?

It was built in 1996, making it 29 years old in 2025.

What condition is 9002 over Knob 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 2025.

How much traffic does 9002 over Knob CR carry?

About 65 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 9002 over Knob CR?

The structure is 75 ft (22.9 m) long with a longest span of 73 ft (22.3 m) and a deck 18 ft wide.

Who owns 9002 over Knob CR?

It is owned by the County Highway Agency.