Structure 53C1758 · Los Angeles County, CA

Hayvenhurst AVE over Granada Channel

Carries Hayvenhurst AVE over Granada Channel, 0.1 Mi S/o Lassen Street.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets 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 FT40 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 40 ft across with 2 openings. 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, so those are drawn as typical for a culvert.

Built195769 years old
Length40.0 ft12.2 m
Daily traffic14,000counted 2020
Last inspectedOctober 2024every 48 months

Location

StateCalifornia
CountyLos Angeles
Location0.1 Mi S/o Lassen Street
CarriesHayvenhurst AVE
CrossesGranada Channel
Coordinates34.24895, -118.49356

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length40.0 ft (12.2 m)
Max Span17.7 ft (5.4 m)
Deck Width82.7 ft (25.2 m)
Deck Area307.4 sq m
Main Spans2
Year Built1957

Traffic

Avg Daily Traffic14,000 (2020)
Truck Traffic1%
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number53C1758

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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