Structure 53 1552 · Los Angeles County, CA

Interstate 10 over Motor AVE

Carries Interstate 10 over Motor AVE, 07-la-010-r6.74-la.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT176 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

176 ft end to end, longest span 87 ft: 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.

Built196462 years old
Length176.2 ft53.7 m
Daily traffic284,000counted 2020
Last inspectedJune 2024every 24 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-010-r6.74-la
CarriesInterstate 10
CrossesMotor AVE
Coordinates34.03060, -118.41141

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length176.2 ft (53.7 m)
Max Span86.9 ft (26.5 m)
Deck Width140.7 ft (42.9 m)
Deck Area2303.7 sq m
Main Spans3
Year Built1964

Traffic

Avg Daily Traffic284,000 (2020)
Truck Traffic4%
Lanes On Bridge9
Lanes Under Bridge3

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number53 1552

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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