US Bridges

SR 241 SB over Santiago Creek

Fair

Orange County, California · 12-ORA-241-33.70-RSM · Structure no. 55 0823L

Built
1998
27 years old
Condition
Fair
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
1,270 ft
6 main spans
Daily traffic
22,500
2014 count
Owner
State
State Highway Agency

About this bridge

SR 241 SB over Santiago Creek is a prestressed concrete continuous box beam or girders - multiple carrying SR 241 SB over Santiago Creek in Orange County, California. It was built in 1998, so it is 27 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 22,500 vehicles a day, projected to reach 49,765 by 2047. The structure is 1,270 ft (387.1 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 241 SB
CrossesSantiago Creek
Location12-ORA-241-33.70-RSM
RouteState Highway 241
Coordinates33.79411, -117.73332
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length1,270 ft (387.1 m)
Longest span230 ft (70.1 m)
Deck width59 ft (18.1 m)
Roadway width56 ft (17 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,500 (2014)
Projected traffic49,765 by 2047
Trucks0%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 241 SB over Santiago Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is SR 241 SB over Santiago 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 February 2025.

How much traffic does SR 241 SB over Santiago Creek carry?

About 22,500 vehicles per day (2014 count).

How long is SR 241 SB over Santiago Creek?

The structure is 1,270 ft (387.1 m) long with a longest span of 230 ft (70.1 m) and a deck 59 ft wide.

Who owns SR 241 SB over Santiago Creek?

It is owned by the State Highway Agency.