US Bridges

6th ST over Small Crk

FairPosted for load

Clay County, Missouri · S 9 T 50 N R 32 W · Structure no. 37406

Built
2024
1 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
10
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

6th ST over Small Crk is a prestressed concrete box beam or girders - multiple carrying 6th ST over Small Crk in Clay County, Missouri. It was built in 2024, so it is 1 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, roughly 10% of them trucks, projected to reach 16 by 2044. The structure is 50 ft (15.2 m) long and 14 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
Carries6th ST
CrossesSmall Crk
LocationS 9 T 50 N R 32 W
RouteCity Street 0
CountyClay County
StateMissouri
Coordinates39.15778, -94.49639
Functional classUrban 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.
Superstructure9 ExcellentNo problems noted.
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating61.5 US tons
Inventory rating36.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length50 ft (15.2 m)
Longest span49 ft (14.9 m)
Deck width14 ft (4.4 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic16 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 6th ST over Small Crk built?

It was built in 2024, making it 1 years old in 2025.

What condition is 6th ST over Small Crk 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 October 2024.

How much traffic does 6th ST over Small Crk carry?

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

How long is 6th ST over Small Crk?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.9 m) and a deck 14 ft wide.

Who owns 6th ST over Small Crk?

It is owned by the Town or Township Highway Agency.