US Bridges

State Route 57 over Santa Ana River

Fair

Orange County, California · 12-ORA-057-11.96-ORA · Structure no. 55 0400

Built
1976
49 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
913 ft
8 main spans
Daily traffic
229,000
2020 count
Owner
State
State Highway Agency

About this bridge

State Route 57 over Santa Ana River is a concrete continuous box beam or girders - multiple carrying State Route 57 over Santa Ana River in Orange County, California. It was built in 1976, so it is 49 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 229,000 vehicles a day, roughly 8% of them trucks, projected to reach 265,000 by 2041. The structure is 913 ft (278.3 m) long and 172 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesState Route 57
CrossesSanta Ana River
Location12-ORA-057-11.96-ORA
RouteState Highway 57
CountyOrange County
StateCalifornia
Coordinates33.79847, -117.87729
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 spans8
Design loadHS 20
Structure length913 ft (278.3 m)
Longest span125 ft (38.1 m)
Deck width172 ft (52.4 m)
Roadway width168 ft (51.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic229,000 (2020)
Projected traffic265,000 by 2041
Trucks8%
Lanes on structure12
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 57 over Santa Ana River built?

It was built in 1976, making it 49 years old in 2025.

What condition is State Route 57 over Santa Ana River 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 May 2024.

How much traffic does State Route 57 over Santa Ana River carry?

About 229,000 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is State Route 57 over Santa Ana River?

The structure is 913 ft (278.3 m) long with a longest span of 125 ft (38.1 m) and a deck 172 ft wide.

Who owns State Route 57 over Santa Ana River?

It is owned by the State Highway Agency.