US Bridges

County RD 401 over Bonne Femme CR

Good

Howard County, Missouri · S 24 T 50 N R 16 W · Structure no. 19108

Built
1995
30 years old
Condition
Good
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
99 ft
3 main spans
Daily traffic
40
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 401 over Bonne Femme CR is a prestressed concrete tee beam carrying County RD 401 over Bonne Femme CR in Howard County, Missouri. It was built in 1995, so it is 30 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 40 vehicles a day, roughly 10% of them trucks, projected to reach 44 by 2044. The structure is 99 ft (30.2 m) long and 25 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesCounty RD 401
CrossesBonne Femme CR
LocationS 24 T 50 N R 16 W
RouteCounty Highway 211
CountyHoward County
StateMissouri
Coordinates39.12299, -92.67166
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.4 US tons
Inventory rating41.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length99 ft (30.2 m)
Longest span33 ft (10.1 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2024)
Projected traffic44 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 401 over Bonne Femme CR built?

It was built in 1995, making it 30 years old in 2025.

What condition is County RD 401 over Bonne Femme 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 401 over Bonne Femme CR carry?

About 40 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 401 over Bonne Femme CR?

The structure is 99 ft (30.2 m) long with a longest span of 33 ft (10.1 m) and a deck 25 ft wide.

Who owns County RD 401 over Bonne Femme CR?

It is owned by the County Highway Agency.