Structure 53 1941 · Los Angeles County, CA

State Route 57 over Sunset Crossing RD

Carries State Route 57 over Sunset Crossing RD, 07-la-057-4.98-dmbr.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT151 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

151 ft end to end: about 2 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a box-beam bridge.

Built197056 years old
Length150.9 ft46 m
Daily traffic145,000counted 2017
Last inspectedAugust 2024every 24 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-057-4.98-dmbr
CarriesState Route 57
CrossesSunset Crossing RD
Coordinates34.02857, -117.81122

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length150.9 ft (46 m)
Max Span149.0 ft (45.4 m)
Deck Width160.1 ft (48.8 m)
Deck Area2244.8 sq m
Main Spans1
Year Built1970

Traffic

Avg Daily Traffic145,000 (2017)
Lanes On Bridge10
Lanes Under Bridge5

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number53 1941

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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