Structure 28C0161 · Contra Costa County, CA

Parking Lot Access over Camino Pablo Road

Carries Parking Lot Access over Camino Pablo Road, Btwn SR 24e & SR 24w.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT175 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

175 ft end to end, longest span 93 ft: about 2 semi-trucks nose to tail. Lengths and the semi-truck 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 box-beam bridge.

Built196957 years old
Length174.9 ft53.3 m
Daily traffic3,000counted 2020
Last inspectedDecember 2023every 24 months

Location

StateCalifornia
CountyContra Costa
LocationBtwn SR 24e & SR 24w
CarriesParking Lot Access
CrossesCamino Pablo Road
Coordinates37.87871, -122.18437

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length174.9 ft (53.3 m)
Max Span92.8 ft (28.3 m)
Deck Width34.1 ft (10.4 m)
Deck Area554.3 sq m
Main Spans3
Year Built1969

Traffic

Avg Daily Traffic3,000 (2020)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerOther Local Agencies
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number28C0161

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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