Structure 28C0095 · Contra Costa County, CA

Monument BLVD over Pine Creek

Carries Monument BLVD over Pine Creek, 0.2 Mi NE Oak Grove RD.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT29 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

29 ft end to end, longest span 13 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 slab bridge.

Built1940rebuilt 1953
Length28.9 ft8.8 m
Daily traffic32,500counted 1979
Last inspectedNovember 2023every 24 months

Location

StateCalifornia
CountyContra Costa
Location0.2 Mi NE Oak Grove RD
CarriesMonument BLVD
CrossesPine Creek
Coordinates37.95849, -122.03569

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length28.9 ft (8.8 m)
Max Span13.5 ft (4.1 m)
Deck Width97.8 ft (29.8 m)
Deck Area262.2 sq m
Main Spans2
Year Built1940 (reconstructed 1953)

Traffic

Avg Daily Traffic32,500 (1979)
Truck Traffic5%
Lanes On Bridge7

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number28C0095

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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