US Bridges

Avenue 20 over Berenda Slough

Good

Madera County, California · 0.3 KM W of CR 14 · Structure no. 41C0193

Built
1994
31 years old
Condition
Good
inspected January 2022
Type
Slab
Concrete Continuous
Length
153 ft
5 main spans
Daily traffic
395
2020 count
Owner
County
County Highway Agency

About this bridge

Avenue 20 over Berenda Slough is a concrete continuous slab carrying Avenue 20 over Berenda Slough in Madera County, California. It was built in 1994, so it is 31 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 395 vehicles a day, roughly 5% of them trucks, projected to reach 793 by 2044. The structure is 153 ft (46.6 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesAvenue 20
CrossesBerenda Slough
Location0.3 KM W of CR 14
RouteCounty Highway 0
CountyMadera County
StateCalifornia
Coordinates37.03994, -120.29658
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 spans5
Design loadHS 20 + Mod
Structure length153 ft (46.6 m)
Longest span30 ft (9.1 m)
Deck width29 ft (8.9 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic395 (2020)
Projected traffic793 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Avenue 20 over Berenda Slough built?

It was built in 1994, making it 31 years old in 2025.

What condition is Avenue 20 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 Avenue 20 over Berenda Slough carry?

About 395 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Avenue 20 over Berenda Slough?

The structure is 153 ft (46.6 m) long with a longest span of 30 ft (9.1 m) and a deck 29 ft wide.

Who owns Avenue 20 over Berenda Slough?

It is owned by the County Highway Agency.