US Bridges

County RD 846 over Crooked CR

FairPosted for load

Bollinger County, Missouri · S 29 T 32 N R 9 E · Structure no. 19977

Built
1922
103 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
36 ft
4 main spans
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 846 over Crooked CR is a concrete culvert carrying County RD 846 over Crooked CR in Bollinger County, Missouri. It was built in 1922, so it is 103 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. Its operating status is: posted for load restriction.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 46 by 2044. The structure is 36 ft (11 m) long and 12 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesCounty RD 846
CrossesCrooked CR
LocationS 29 T 32 N R 9 E
RouteCounty Highway 242
CountyBollinger County
StateMissouri
Coordinates37.42267, -90.08714
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating6 US tons
Inventory rating3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadOther
Structure length36 ft (11 m)
Longest span5 ft (1.5 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic46 by 2044
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$225,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 846 over Crooked CR built?

It was built in 1922, making it 103 years old in 2025.

What condition is County RD 846 over Crooked 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 November 2023.

How much traffic does County RD 846 over Crooked CR carry?

About 35 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 846 over Crooked CR?

The structure is 36 ft (11 m) long with a longest span of 5 ft (1.5 m) and a deck 12 ft wide.

Who owns County RD 846 over Crooked CR?

It is owned by the County Highway Agency.