US Bridges

Santiago Canyon RD over State Route 241

Fair

Orange County, California · 12-ORA-241-32.37-RSM · Structure no. 55 0802

Built
1997
28 years old
Condition
Fair
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
611 ft
4 main spans
Daily traffic
20,000
2014 count
Owner
State
State Highway Agency

About this bridge

Santiago Canyon RD over State Route 241 is a prestressed concrete continuous box beam or girders - multiple carrying Santiago Canyon RD over State Route 241 in Orange County, California. It was built in 1997, so it is 28 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 5 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 20,000 vehicles a day, roughly 3% of them trucks, projected to reach 25,639 by 2047. The structure is 611 ft (186.2 m) long and 64 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSantiago Canyon RD
CrossesState Route 241
Location12-ORA-241-32.37-RSM
RouteCounty Highway 0
CountyOrange County
StateCalifornia
Coordinates33.78104, -117.74849
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length611 ft (186.2 m)
Longest span200 ft (61 m)
Deck width64 ft (19.4 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (2014)
Projected traffic25,639 by 2047
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a toll 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Santiago Canyon RD over State Route 241 built?

It was built in 1997, making it 28 years old in 2025.

What condition is Santiago Canyon RD over State Route 241 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 February 2025.

How much traffic does Santiago Canyon RD over State Route 241 carry?

About 20,000 vehicles per day (2014 count), of which roughly 3% are trucks.

How long is Santiago Canyon RD over State Route 241?

The structure is 611 ft (186.2 m) long with a longest span of 200 ft (61 m) and a deck 64 ft wide.

Who owns Santiago Canyon RD over State Route 241?

It is owned by the State Highway Agency.