Structure 28C0321 · Contra Costa County, CA

Vale RD over Wildcat Creek

Carries Vale RD over Wildcat Creek, 0.2 Mi S San Pablo AVE.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

31 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 multi-beam bridge.

Built196066 years old
Length31.2 ft9.5 m
Daily traffic5,000counted 2020
Last inspectedDecember 2024every 24 months

Location

StateCalifornia
CountyContra Costa
Location0.2 Mi S San Pablo AVE
CarriesVale RD
CrossesWildcat Creek
Coordinates37.95319, -122.33833

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length31.2 ft (9.5 m)
Max Span26.6 ft (8.1 m)
Deck Width54.1 ft (16.5 m)
Deck Area156.8 sq m
Main Spans1
Year Built1960

Traffic

Avg Daily Traffic5,000 (2020)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number28C0321

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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