Structure 53 2006G · Los Angeles County, CA

N57-w10 Connector over Interstate 10 & Conns

Carries N57-w10 Connector over Interstate 10 & Conns, 07-la-057-r7.66-pom.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT606 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

606 ft end to end, longest span 129 ft: about 1.7 football fields. 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.

Built197254 years old
Length606.3 ft184.8 m
Daily traffic11,300counted 2015
Last inspectedSeptember 2024every 24 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-057-r7.66-pom
CarriesN57-w10 Connector
CrossesInterstate 10 & Conns
Coordinates34.06474, -117.80594

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length606.3 ft (184.8 m)
Max Span128.9 ft (39.3 m)
Deck Width34.1 ft (10.4 m)
Deck Area1921.9 sq m
Main Spans6
Year Built1972

Traffic

Avg Daily Traffic11,300 (2015)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge13

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number53 2006G

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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