Structure 23C0172 · Solano County, CA

Paddon Road over Putah South Canal

Carries Paddon Road over Putah South Canal, 0.3 Mi N Robinson 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 overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT58 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

58 ft end to end, longest span 28 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.

Built195571 years old
Length58.1 ft17.7 m
Daily traffic241counted 2011
Last inspectedOctober 2024every 48 months

Location

StateCalifornia
CountySolano
Location0.3 Mi N Robinson Road
CarriesPaddon Road
CrossesPutah South Canal
Coordinates38.42633, -121.95329

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length58.1 ft (17.7 m)
Max Span27.9 ft (8.5 m)
Deck Width24.0 ft (7.3 m)
Deck Area129.2 sq m
Main Spans2
Year Built1955

Traffic

Avg Daily Traffic241 (2011)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 48 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number23C0172

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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