US Bridges

County RD 804 over Crooked CR

Fair

Bollinger County, Missouri · S 34 T 31 N R 9 E · Structure no. 19417

Built
1923
102 years old, rebuilt 1988
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
52 ft
4 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 804 over Crooked CR is a concrete culvert carrying County RD 804 over Crooked CR in Bollinger County, Missouri. It was built in 1923 and reconstructed in 1988, so it is 102 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 65 by 2044. The structure is 52 ft (15.8 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty RD 804
CrossesCrooked CR
LocationS 34 T 31 N R 9 E
RouteCounty Highway 220
CountyBollinger County
StateMissouri
Coordinates37.32388, -90.0325
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 protection7 GoodSome minor problems.
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 statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadOther
Structure length52 ft (15.8 m)
Longest span12 ft (3.7 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic65 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 804 over Crooked CR built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 1988.

What condition is County RD 804 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 804 over Crooked CR carry?

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 804 over Crooked CR?

The structure is 52 ft (15.8 m) long with a longest span of 12 ft (3.7 m) and a deck 16 ft wide.

Who owns County RD 804 over Crooked CR?

It is owned by the County Highway Agency.