US Bridges

County Road 9 over Berenda Slough

Good

Madera County, California · 1.35 MI S of Ave 18 1/2 · Structure no. 41C0092

Built
1965
60 years old
Condition
Good
inspected January 2022
Type
Slab
Concrete Continuous
Length
108 ft
4 main spans
Daily traffic
465
2020 count
Owner
County
County Highway Agency

About this bridge

County Road 9 over Berenda Slough is a concrete continuous slab carrying County Road 9 over Berenda Slough in Madera County, California. It was built in 1965, so it is 60 years old, older than the California average of 54.8 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 465 vehicles a day, roughly 12% of them trucks, projected to reach 905 by 2044. The structure is 108 ft (32.9 m) long and 31 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesCounty Road 9
CrossesBerenda Slough
Location1.35 MI S of Ave 18 1/2
RouteCounty Highway 0
Coordinates36.99588, -120.38315
Functional classRural Minor Collector

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 protection7 GoodSome minor problems.
Last inspectionJanuary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.8 US tons
Inventory rating46.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length108 ft (32.9 m)
Longest span30 ft (9.1 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic465 (2020)
Projected traffic905 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 9 over Berenda Slough built?

It was built in 1965, making it 60 years old in 2025.

What condition is County Road 9 over Berenda Slough 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 January 2022.

How much traffic does County Road 9 over Berenda Slough carry?

About 465 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is County Road 9 over Berenda Slough?

The structure is 108 ft (32.9 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.

Who owns County Road 9 over Berenda Slough?

It is owned by the County Highway Agency.