US Bridges

Wehmeyer RD over Sugar Br

Good

Boone County, Missouri · S 12 T 48 N R 14 W · Structure no. 24316

Built
1981
44 years old
Condition
Good
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

Wehmeyer RD over Sugar Br is a prestressed concrete tee beam carrying Wehmeyer RD over Sugar Br in Boone County, Missouri. It was built in 1981, so it is 44 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 190 by 2043. The structure is 56 ft (17.1 m) long and 23 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesWehmeyer RD
CrossesSugar Br
LocationS 12 T 48 N R 14 W
RouteCounty Highway 476
Coordinates38.96459, -92.44609
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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating59.5 US tons
Inventory rating29.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length56 ft (17.1 m)
Longest span55 ft (16.8 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic190 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Wehmeyer RD over Sugar Br built?

It was built in 1981, making it 44 years old in 2025.

What condition is Wehmeyer RD over Sugar Br 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 December 2024.

How much traffic does Wehmeyer RD over Sugar Br carry?

About 100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Wehmeyer RD over Sugar Br?

The structure is 56 ft (17.1 m) long with a longest span of 55 ft (16.8 m) and a deck 23 ft wide.

Who owns Wehmeyer RD over Sugar Br?

It is owned by the County Highway Agency.