Structure 23 0237 · Solano County, CA

State Route 29 over Chabot Creek

Carries State Route 29 over Chabot Creek, 04-sol-029-4.90-val.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT25 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 25 ft across with 3 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.

Built1960rebuilt 1970
Length25.3 ft7.7 m
Daily traffic25,150counted 2009
Last inspectedJanuary 2022every 48 months

Location

StateCalifornia
CountySolano
Location04-sol-029-4.90-val
CarriesState Route 29
CrossesChabot Creek
Coordinates38.14064, -122.25578

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length25.3 ft (7.7 m)
Max Span8.5 ft (2.6 m)
Deck Width131.2 ft (40 m)
Deck Area308 sq m
Main Spans3
Year Built1960 (reconstructed 1970)

Traffic

Avg Daily Traffic25,150 (2009)
Truck Traffic8%
Lanes On Bridge5

Inspection & Ownership

Last InspectionJanuary 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number23 0237

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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