Structure 53 0104M · Los Angeles County, CA

Interstate 10 over Charter Oak Wash

Carries Interstate 10 over Charter Oak Wash, 07-la-010-37.61-wcov.

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
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT28 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

28 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.

Built1934rebuilt 1975
Length27.9 ft8.5 m
Daily traffic223,000counted 2014
Last inspectedJune 2023every 24 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-010-37.61-wcov
CarriesInterstate 10
CrossesCharter Oak Wash
Coordinates34.07188, -117.88823

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length27.9 ft (8.5 m)
Max Span24.9 ft (7.6 m)
Deck Width256.9 ft (78.3 m)
Deck Area665.5 sq m
Main Spans1
Year Built1934 (reconstructed 1975)

Traffic

Avg Daily Traffic223,000 (2014)
Truck Traffic6%
Lanes On Bridge10

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number53 0104M

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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