Structure 53C1657 · Los Angeles County, CA

Thousand Oaks BLVD over Las Virgenes Crk

Carries Thousand Oaks BLVD over Las Virgenes Crk, 200ft E/o Las Virgenes RD.

Overall conditionGood

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

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT33 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 33 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.

Built1974rebuilt 1979
Length33.1 ft10.1 m
Daily traffic4,998counted 2014
Last inspectedAugust 2024every 48 months

Location

StateCalifornia
CountyLos Angeles
Location200ft E/o Las Virgenes RD
CarriesThousand Oaks BLVD
CrossesLas Virgenes Crk
Coordinates34.16033, -118.70119

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length33.1 ft (10.1 m)
Max Span16.4 ft (5 m)
Deck Width82.3 ft (25.1 m)
Deck Area253.5 sq m
Main Spans2
Year Built1974 (reconstructed 1979)

Traffic

Avg Daily Traffic4,998 (2014)
Truck Traffic1%
Lanes On Bridge4

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number53C1657

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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