US Bridges

RD 600 over Crooks Creek

Poor

Madera County, California · 0.05 MI E RD 619 · Structure no. 41C0005

Built
1965
60 years old
Condition
Poor
inspected September 2023
Type
Tee Beam
Concrete
Length
41 ft
1 main span
Daily traffic
560
2020 count
Owner
County
County Highway Agency

About this bridge

RD 600 over Crooks Creek is a concrete tee beam carrying RD 600 over Crooks Creek 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 560 vehicles a day, roughly 7% of them trucks, projected to reach 1,091 by 2041. The structure is 41 ft (12.5 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRD 600
CrossesCrooks Creek
Location0.05 MI E RD 619
RouteCounty Highway 0
CountyMadera County
StateCalifornia
Coordinates37.35124, -119.74387
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating22.8 US tons
Inventory rating15.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span40 ft (12.2 m)
Deck width30 ft (9 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic560 (2020)
Projected traffic1,091 by 2041
Trucks7%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$189,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RD 600 over Crooks Creek built?

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

What condition is RD 600 over Crooks Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

How much traffic does RD 600 over Crooks Creek carry?

About 560 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is RD 600 over Crooks Creek?

The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.2 m) and a deck 30 ft wide.

Who owns RD 600 over Crooks Creek?

It is owned by the County Highway Agency.