US Bridges

Road 613 over Chowchilla River

Fair

Madera County, California · 4 MI W of Road 800 · Structure no. 41C0016

Built
1982
43 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
283 ft
4 main spans
Daily traffic
112
2020 count
Owner
County
County Highway Agency

About this bridge

Road 613 over Chowchilla River is a prestressed concrete continuous stringer/multi-beam or girder carrying Road 613 over Chowchilla River in Madera County, California. It was built in 1982, so it is 43 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 112 vehicles a day, roughly 6% of them trucks, projected to reach 191 by 2041. The structure is 283 ft (86.3 m) long and 40 ft wide. If it were closed, the detour would be 42.3 mi (68 km).

Location

Open in Google Maps
CarriesRoad 613
CrossesChowchilla River
Location4 MI W of Road 800
RouteCounty Highway 0
CountyMadera County
StateCalifornia
Coordinates37.2596, -119.94627
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.4 US tons
Inventory rating27.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length283 ft (86.3 m)
Longest span90 ft (27.4 m)
Deck width40 ft (12.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic112 (2020)
Projected traffic191 by 2041
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed42.3 mi (68 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 Road 613 over Chowchilla River built?

It was built in 1982, making it 43 years old in 2025.

What condition is Road 613 over Chowchilla River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Road 613 over Chowchilla River carry?

About 112 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Road 613 over Chowchilla River?

The structure is 283 ft (86.3 m) long with a longest span of 90 ft (27.4 m) and a deck 40 ft wide.

Who owns Road 613 over Chowchilla River?

It is owned by the County Highway Agency.