US Bridges

County RD 328 over Bear CR

Good

Adair County, Missouri · S 25 T 61 N R 14 W · Structure no. 36329

Built
2020
5 years old
Condition
Good
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
105 ft
1 main span
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 328 over Bear CR is a prestressed concrete tee beam carrying County RD 328 over Bear CR in Adair County, Missouri. It was built in 2020, so it is 5 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 11 by 2044. The structure is 105 ft (32.1 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty RD 328
CrossesBear CR
LocationS 25 T 61 N R 14 W
RouteCounty Highway 328
Coordinates40.05167, -92.40833
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.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating108.1 US tons
Inventory rating41.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length105 ft (32.1 m)
Longest span101 ft (30.9 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic11 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 328 over Bear CR built?

It was built in 2020, making it 5 years old in 2025.

What condition is County RD 328 over Bear 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 328 over Bear CR carry?

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

How long is County RD 328 over Bear CR?

The structure is 105 ft (32.1 m) long with a longest span of 101 ft (30.9 m) and a deck 25 ft wide.

Who owns County RD 328 over Bear CR?

It is owned by the County Highway Agency.