Structure 53 1802E · Los Angeles County, CA

W138-n5 & S5-e138 over Zenobia Road

Carries W138-n5 & S5-e138 over Zenobia Road, 07-la-138-0.14l.

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
SEMI-TRUCK · 72 FT147 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

147 ft end to end, longest span 79 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.

Built196759 years old
Length147.0 ft44.8 m
Daily traffic2,225counted 2019
Last inspectedOctober 2024every 48 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-138-0.14l
CarriesW138-n5 & S5-e138
CrossesZenobia Road
Coordinates34.76603, -118.79740

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length147.0 ft (44.8 m)
Max Span79.1 ft (24.1 m)
Deck Width91.9 ft (28 m)
Deck Area1254.4 sq m
Main Spans3
Year Built1967

Traffic

Avg Daily Traffic2,225 (2019)
Truck Traffic2%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number53 1802E

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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