Structure 53C1772 · Los Angeles County, CA

Mission RD over Metrolink

Carries Mission RD over Metrolink, 1/4 Mi NE Cesar Chavez Av.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT47 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

47 ft end to end. Lengths and the car 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 slab bridge.

Built193096 years old
Length46.9 ft14.3 m
Daily traffic22,500counted 2016
Last inspectedMarch 2023every 24 months

Location

StateCalifornia
CountyLos Angeles
Location1/4 Mi NE Cesar Chavez Av
CarriesMission RD
CrossesMetrolink
Coordinates34.05577, -118.22223

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length46.9 ft (14.3 m)
Max Span46.9 ft (14.3 m)
Deck Width106.0 ft (32.3 m)
Deck Area461.9 sq m
Main Spans1
Year Built1930

Traffic

Avg Daily Traffic22,500 (2016)
Truck Traffic2%
Lanes On Bridge4

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number53C1772

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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