US Bridges

County RD 237 over Doxies CR

Good

Howard County, Missouri · S 6 T 51 N R 16 W · Structure no. 18808

Built
1978
47 years old
Condition
Good
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
105 ft
3 main spans
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 237 over Doxies CR is a prestressed concrete tee beam carrying County RD 237 over Doxies CR in Howard County, Missouri. It was built in 1978, so it is 47 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 39 by 2044. The structure is 105 ft (32 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesCounty RD 237
CrossesDoxies CR
LocationS 6 T 51 N R 16 W
RouteCounty Highway 200
Coordinates39.25614, -92.76415
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length105 ft (32 m)
Longest span35 ft (10.7 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic39 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byOther Local 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 237 over Doxies CR built?

It was built in 1978, making it 47 years old in 2025.

What condition is County RD 237 over Doxies CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does County RD 237 over Doxies CR carry?

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

How long is County RD 237 over Doxies CR?

The structure is 105 ft (32 m) long with a longest span of 35 ft (10.7 m) and a deck 27 ft wide.

Who owns County RD 237 over Doxies CR?

It is owned by the County Highway Agency and maintained by the Other Local Agency.