US Bridges

County RD 187 over Bridge CR

Good

Knox County, Missouri · S 10 T 62 N R 10 W · Structure no. 33006

Built
2011
14 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
119 ft
3 main spans
Daily traffic
45
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 187 over Bridge CR is a prestressed concrete continuous stringer/multi-beam or girder carrying County RD 187 over Bridge CR in Knox County, Missouri. It was built in 2011, so it is 14 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 45 vehicles a day, roughly 10% of them trucks, projected to reach 56 by 2044. The structure is 119 ft (36.2 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty RD 187
CrossesBridge CR
LocationS 10 T 62 N R 10 W
RouteCounty Highway 187
CountyKnox County
StateMissouri
Coordinates40.18467, -91.98672
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length119 ft (36.2 m)
Longest span48 ft (14.6 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2024)
Projected traffic56 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County RD 187 over Bridge CR built?

It was built in 2011, making it 14 years old in 2025.

What condition is County RD 187 over Bridge 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 August 2023.

How much traffic does County RD 187 over Bridge CR carry?

About 45 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 187 over Bridge CR?

The structure is 119 ft (36.2 m) long with a longest span of 48 ft (14.6 m) and a deck 25 ft wide.

Who owns County RD 187 over Bridge CR?

It is owned by the County Highway Agency.