US Bridges

Shady Canyon Road over Bommer Cyn Channel

Good

Orange County, California · 1.2 MI E Culver DR · Structure no. 55C0482

Built
1970
55 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
32 ft
2 main spans
Daily traffic
8,100
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Shady Canyon Road over Bommer Cyn Channel is a concrete culvert carrying Shady Canyon Road over Bommer Cyn Channel in Orange County, California. It was built in 1970, so it is 55 years old, older 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 8,100 vehicles a day, roughly 3% of them trucks, projected to reach 8,671 by 2046. The structure is 32 ft (9.7 m) long and 85 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesShady Canyon Road
CrossesBommer Cyn Channel
Location1.2 MI E Culver DR
RouteCity Street 0
Coordinates33.63126, -117.80621
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length32 ft (9.7 m)
Longest span15 ft (4.6 m)
Deck width85 ft (25.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,100 (2018)
Projected traffic8,671 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Shady Canyon Road over Bommer Cyn Channel built?

It was built in 1970, making it 55 years old in 2025.

What condition is Shady Canyon Road over Bommer Cyn Channel 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 February 2024.

How much traffic does Shady Canyon Road over Bommer Cyn Channel carry?

About 8,100 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is Shady Canyon Road over Bommer Cyn Channel?

The structure is 32 ft (9.7 m) long with a longest span of 15 ft (4.6 m) and a deck 85 ft wide.

Who owns Shady Canyon Road over Bommer Cyn Channel?

It is owned by the City or Municipal Highway Agency.