US Bridges

County RD 431 over Br of Prairie Fk

Good

Howard County, Missouri · S 19 T 49 N R 14 W · Structure no. 33811

Built
2011
14 years old
Condition
Good
inspected February 2024
Type
Channel Beam
Concrete
Length
48 ft
1 main span
Daily traffic
25
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 431 over Br of Prairie Fk is a concrete channel beam carrying County RD 431 over Br of Prairie Fk in Howard 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 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 25 vehicles a day, roughly 5% of them trucks, projected to reach 28 by 2044. The structure is 48 ft (14.6 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCounty RD 431
CrossesBr of Prairie Fk
LocationS 19 T 49 N R 14 W
RouteCounty Highway 88
CountyHoward County
StateMissouri
Coordinates39.03083, -92.54833
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span46 ft (14 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic28 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 431 over Br of Prairie Fk built?

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

What condition is County RD 431 over Br of Prairie Fk 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 431 over Br of Prairie Fk carry?

About 25 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is County RD 431 over Br of Prairie Fk?

The structure is 48 ft (14.6 m) long with a longest span of 46 ft (14 m) and a deck 26 ft wide.

Who owns County RD 431 over Br of Prairie Fk?

It is owned by the County Highway Agency.