Structure 8C0282 · Tehama County, CA

Ottman AVE over Corning Canal

Carries Ottman AVE over Corning Canal, 0.1 Mi East Rawson Road.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT53 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

53 ft end to end, longest span 26 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 slab bridge.

Built195472 years old
Length53.1 ft16.2 m
Daily traffic25counted 2004
Last inspectedDecember 2023every 48 months

Location

StateCalifornia
CountyTehama
Location0.1 Mi East Rawson Road
CarriesOttman AVE
CrossesCorning Canal
Coordinates40.07697, -122.23170

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length53.1 ft (16.2 m)
Max Span25.9 ft (7.9 m)
Deck Width19.4 ft (5.9 m)
Deck Area95.6 sq m
Main Spans2
Year Built1954

Traffic

Avg Daily Traffic25 (2004)
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number08C0282

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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