US Bridges

State Route 133 NB over Laguna Canyon Creek

Good

Orange County, California · 12-ORA-133-M4.31 · Structure no. 55 1059R

Built
2008
17 years old
Condition
Good
inspected November 2022
Type
Slab
Concrete
Length
65 ft
1 main span
Daily traffic
28,500
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 133 NB over Laguna Canyon Creek is a concrete slab carrying State Route 133 NB over Laguna Canyon Creek in Orange County, California. It was built in 2008, so it is 17 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 28,500 vehicles a day, roughly 2% of them trucks, projected to reach 40,500 by 2040. The structure is 65 ft (19.7 m) long and 40 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesState Route 133 NB
CrossesLaguna Canyon Creek
Location12-ORA-133-M4.31
RouteState Highway 133
CountyOrange County
StateCalifornia
Coordinates33.59555, -117.76049
Functional classUrban Other Principal Arterial

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 protection9 ExcellentNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length65 ft (19.7 m)
Longest span65 ft (19.7 m)
Deck width40 ft (12.2 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,500 (2020)
Projected traffic40,500 by 2040
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 133 NB over Laguna Canyon Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is State Route 133 NB over Laguna Canyon Creek 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 November 2022.

How much traffic does State Route 133 NB over Laguna Canyon Creek carry?

About 28,500 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is State Route 133 NB over Laguna Canyon Creek?

The structure is 65 ft (19.7 m) long with a longest span of 65 ft (19.7 m) and a deck 40 ft wide.

Who owns State Route 133 NB over Laguna Canyon Creek?

It is owned by the State Highway Agency.