Structure 11C0205 · Glenn County, CA

Co RD 200\newville over Stony Creek Irrg Canal

Carries Co RD 200\newville over Stony Creek Irrg Canal, 0.6 Mi W Of I-5.

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 FT30 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

30 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.

Built1940rebuilt 1960
Length29.9 ft9.1 m
Daily traffic1,448counted 2011
Last inspectedFebruary 2024every 24 months

Location

StateCalifornia
CountyGlenn
Location0.6 Mi W Of I-5
CarriesCo RD 200\newville
CrossesStony Creek Irrg Canal
Coordinates39.75459, -122.21507

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length29.9 ft (9.1 m)
Max Span27.9 ft (8.5 m)
Deck Width41.0 ft (12.5 m)
Deck Area113.8 sq m
Main Spans1
Year Built1940 (reconstructed 1960)

Traffic

Avg Daily Traffic1,448 (2011)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number11C0205

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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