US Bridges

EB Trabuco Road over Aliso Creek

Fair

Orange County, California · 0.35 Mi. E/O El Toro Road · Structure no. 55C0216R

Built
1975
50 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
204 ft
2 main spans
Daily traffic
16,500
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

EB Trabuco Road over Aliso Creek is a concrete continuous box beam or girders - multiple carrying EB Trabuco Road over Aliso Creek in Orange County, California. It was built in 1975, so it is 50 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 6 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 16,500 vehicles a day, roughly 2% of them trucks, projected to reach 25,652 by 2041. The structure is 204 ft (62.2 m) long and 42 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesEB Trabuco Road
CrossesAliso Creek
Location0.35 Mi. E/O El Toro Road
RouteCity Street 0
CountyOrange County
StateCalifornia
Coordinates33.63291, -117.6766
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length204 ft (62.2 m)
Longest span100 ft (30.5 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,500 (2017)
Projected traffic25,652 by 2041
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 EB Trabuco Road over Aliso Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is EB Trabuco Road over Aliso Creek 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 2024.

How much traffic does EB Trabuco Road over Aliso Creek carry?

About 16,500 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is EB Trabuco Road over Aliso Creek?

The structure is 204 ft (62.2 m) long with a longest span of 100 ft (30.5 m) and a deck 42 ft wide.

Who owns EB Trabuco Road over Aliso Creek?

It is owned by the City or Municipal Highway Agency.