US Bridges

Orange Avenue over Carbon Creek Channel

Good

Orange County, California · 0.1 Mi. E/O Western Ave. · Structure no. 55C0273

Built
1959
66 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
58 ft
1 main span
Daily traffic
14,800
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Orange Avenue over Carbon Creek Channel is a concrete culvert carrying Orange Avenue over Carbon Creek Channel in Orange County, California. It was built in 1959, so it is 66 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 14,800 vehicles a day, roughly 1% of them trucks, projected to reach 28,635 by 2043. The structure is 58 ft (17.6 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesOrange Avenue
CrossesCarbon Creek Channel
Location0.1 Mi. E/O Western Ave.
RouteCity Street 0
Coordinates33.82461, -118.00086
Functional classUrban Minor Arterial

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 inspectionAugust 2023
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 spans1
Design loadHS 20
Structure length58 ft (17.6 m)
Longest span53 ft (16.3 m)
Deck width71 ft (21.6 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,800 (2019)
Projected traffic28,635 by 2043
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Orange Avenue over Carbon Creek Channel built?

It was built in 1959, making it 66 years old in 2025.

What condition is Orange Avenue over Carbon Creek 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 August 2023.

How much traffic does Orange Avenue over Carbon Creek Channel carry?

About 14,800 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Orange Avenue over Carbon Creek Channel?

The structure is 58 ft (17.6 m) long with a longest span of 53 ft (16.3 m) and a deck 71 ft wide.

Who owns Orange Avenue over Carbon Creek Channel?

It is owned by the City or Municipal Highway Agency.