Structure 52C0304 · Ventura County, CA

Flynn Rd. over Somis Drain

Carries Flynn Rd. over Somis Drain, 0.4 Mi N/o I101.

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 FT26 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 26 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.

Built198145 years old
Length26.2 ft8 m
Daily traffic9,000counted 2022
Last inspectedOctober 2022every 48 months

Location

StateCalifornia
CountyVentura
Location0.4 Mi N/o I101
CarriesFlynn Rd.
CrossesSomis Drain
Coordinates34.22278, -119.02267

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length26.2 ft (8 m)
Max Span12.1 ft (3.7 m)
Deck Width68.2 ft (20.8 m)
Deck Area166.4 sq m
Main Spans2
Year Built1981

Traffic

Avg Daily Traffic9,000 (2022)
Truck Traffic1%
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2022
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number52C0304

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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