Structure 28C0427 · Contra Costa County, CA

Cowell ST over Galindo Creek

Carries Cowell ST over Galindo Creek, 0.05 Mi S Babel Lane.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT30 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 30 ft across with 2 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.

Built197848 years old
Length29.9 ft9.1 m
Daily traffic9,000counted 2000
Last inspectedNovember 2021every 48 months

Location

StateCalifornia
CountyContra Costa
Location0.05 Mi S Babel Lane
CarriesCowell ST
CrossesGalindo Creek
Coordinates37.96092, -122.00734

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length29.9 ft (9.1 m)
Max Span14.1 ft (4.3 m)
Deck Area106.5 sq m
Main Spans2
Year Built1978

Traffic

Avg Daily Traffic9,000 (2000)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2021
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number28C0427

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.

Nearby Bridges