US Bridges

County Road 8 over Chowchilla River

Good

Madera County, California · 0.4 MI N/O Avenue 25 · Structure no. 41C0196

Built
1995
30 years old
Condition
Good
inspected January 2022
Type
Slab
Concrete Continuous
Length
71 ft
2 main spans
Daily traffic
275
2020 count
Owner
County
County Highway Agency

About this bridge

County Road 8 over Chowchilla River is a concrete continuous slab carrying County Road 8 over Chowchilla River in Madera County, California. It was built in 1995, so it is 30 years old, younger 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 275 vehicles a day, roughly 5% of them trucks, projected to reach 419 by 2044. The structure is 71 ft (21.5 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Road 8
CrossesChowchilla River
Location0.4 MI N/O Avenue 25
RouteCounty Highway 0
CountyMadera County
StateCalifornia
Coordinates37.11767, -120.40074
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 protection8 Very GoodNo problems noted.
Last inspectionJanuary 2022
Inspection intervalevery 48 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length71 ft (21.5 m)
Longest span34 ft (10.4 m)
Deck width29 ft (8.9 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2020)
Projected traffic419 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 8 over Chowchilla River built?

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

What condition is County Road 8 over Chowchilla River 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 8 over Chowchilla River carry?

About 275 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is County Road 8 over Chowchilla River?

The structure is 71 ft (21.5 m) long with a longest span of 34 ft (10.4 m) and a deck 29 ft wide.

Who owns County Road 8 over Chowchilla River?

It is owned by the County Highway Agency.