US Bridges

County Road 525 over Bear Slu Hickory C

Good

Audrain County, Missouri · S 32 T 52 N R 6 W · Structure no. 37098

Built
2023
2 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
25
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 525 over Bear Slu Hickory C is a concrete culvert carrying County Road 525 over Bear Slu Hickory C in Audrain County, Missouri. It was built in 2023, so it is 2 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 9 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 10% of them trucks, projected to reach 31 by 2043. The structure is 23 ft (7 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Road 525
CrossesBear Slu Hickory C
LocationS 32 T 52 N R 6 W
RouteCounty Highway 585
CountyAudrain County
StateMissouri
Coordinates39.25008, -91.59122
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
Channel and channel protection9 ExcellentNo problems noted.
Culvert9 ExcellentNo problems noted.
Last inspectionDecember 2023
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 alignment8: Equal to present desirable criteria
Operating rating78.4 US tons
Inventory rating46.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width37 ft (11.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic31 by 2043
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 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 Road 525 over Bear Slu Hickory C built?

It was built in 2023, making it 2 years old in 2025.

What condition is County Road 525 over Bear Slu Hickory C 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 2023.

How much traffic does County Road 525 over Bear Slu Hickory C carry?

About 25 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County Road 525 over Bear Slu Hickory C?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 37 ft wide.

Who owns County Road 525 over Bear Slu Hickory C?

It is owned by the County Highway Agency.