US Bridges

China Garden RD over Secret Ravine

Good

Placer County, California · 0.1 MI S of Rocklin RD · Structure no. 19C0273

Built
1996
29 years old
Condition
Good
inspected June 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
193 ft
2 main spans
Daily traffic
1,170
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

China Garden RD over Secret Ravine is a steel continuous stringer/multi-beam or girder carrying China Garden RD over Secret Ravine in Placer County, California. It was built in 1996, so it is 29 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 1,170 vehicles a day, roughly 1% of them trucks, projected to reach 1,535 by 2044. The structure is 193 ft (58.7 m) long and 49 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesChina Garden RD
CrossesSecret Ravine
Location0.1 MI S of Rocklin RD
RouteCity Street 0
CountyPlacer County
StateCalifornia
Coordinates38.78743, -121.22048
Functional classUrban 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 protection7 GoodSome minor problems.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadHS 20
Structure length193 ft (58.7 m)
Longest span90 ft (27.4 m)
Deck width49 ft (14.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,170 (2018)
Projected traffic1,535 by 2044
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 China Garden RD over Secret Ravine built?

It was built in 1996, making it 29 years old in 2025.

What condition is China Garden RD over Secret Ravine 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 June 2022.

How much traffic does China Garden RD over Secret Ravine carry?

About 1,170 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is China Garden RD over Secret Ravine?

The structure is 193 ft (58.7 m) long with a longest span of 90 ft (27.4 m) and a deck 49 ft wide.

Who owns China Garden RD over Secret Ravine?

It is owned by the City or Municipal Highway Agency.