Structure 53C0031 · Los Angeles County, CA

Alondra BLVD over Los Angeles Riv

Carries Alondra BLVD over Los Angeles Riv, 0.1mi E/o I-710 FWY.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT429 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

429 ft end to end, longest span 78 ft: about 6 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 tee-beam bridge.

Built1958rebuilt 1971
Length428.8 ft130.7 m
Daily traffic27,756counted 2014
Last inspectedAugust 2024every 24 months

Location

StateCalifornia
CountyLos Angeles
Location0.1mi E/o I-710 FWY
CarriesAlondra BLVD
CrossesLos Angeles Riv
Coordinates33.88895, -118.18821

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length428.8 ft (130.7 m)
Max Span78.1 ft (23.8 m)
Deck Width92.2 ft (28.1 m)
Deck Area3672.7 sq m
Main Spans6
Year Built1958 (reconstructed 1971)

Traffic

Avg Daily Traffic27,756 (2014)
Truck Traffic7%
Lanes On Bridge5

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number53C0031

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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