Structure 11C0094 · Glenn County, CA

Co RD D over No Name Drain

Carries Co RD D over No Name Drain, 0.7 Mi S State HWY 162.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT73 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

73 ft end to end, longest span 24 ft. 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 tee-beam bridge.

Built1925rebuilt 1982
Length73.2 ft22.3 m
Daily traffic397counted 2011
Last inspectedFebruary 2025every 24 months

Location

StateCalifornia
CountyGlenn
Location0.7 Mi S State HWY 162
CarriesCo RD D
CrossesNo Name Drain
Coordinates39.51347, -122.24912

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length73.2 ft (22.3 m)
Max Span24.0 ft (7.3 m)
Deck Width32.8 ft (10 m)
Deck Area223 sq m
Main Spans3
Year Built1925 (reconstructed 1982)

Traffic

Avg Daily Traffic397 (2011)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number11C0094

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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