US Bridges

County RD 184 over Whetstone CR

Good

Callaway County, Missouri · S 11 T 48 N R 8 W · Structure no. 24222

Built
1983
42 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 184 over Whetstone CR is a concrete culvert carrying County RD 184 over Whetstone CR in Callaway County, Missouri. It was built in 1983, so it is 42 years old, younger 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 30 vehicles a day, roughly 5% of them trucks, projected to reach 45 by 2043. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesCounty RD 184
CrossesWhetstone CR
LocationS 11 T 48 N R 8 W
RouteCounty Highway 465
CountyCallaway County
StateMissouri
Coordinates38.948, -91.77958
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 184 over Whetstone CR built?

It was built in 1983, making it 42 years old in 2025.

What condition is County RD 184 over Whetstone 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 October 2024.

How much traffic does County RD 184 over Whetstone CR carry?

About 30 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is County RD 184 over Whetstone CR?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.6 m).

Who owns County RD 184 over Whetstone CR?

It is owned by the County Highway Agency.