Structure 54C0208 · San Bernardino County, CA

Mission BLVD over West Cucamonga Wash

Carries Mission BLVD over West Cucamonga Wash, 0.6 Mi W Of Vineyard.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT38 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

38 ft end to end, longest span 10 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.

Built1914rebuilt 1947
Length38.1 ft11.6 m
Daily traffic30,172counted 2019
Last inspectedOctober 2024every 24 months

Location

StateCalifornia
CountySan Bernardino
Location0.6 Mi W Of Vineyard
CarriesMission BLVD
CrossesWest Cucamonga Wash
Coordinates34.05272, -117.61994

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length38.1 ft (11.6 m)
Max Span9.8 ft (3 m)
Deck Width114.2 ft (34.8 m)
Deck Area403.7 sq m
Main Spans3
Year Built1914 (reconstructed 1947)

Traffic

Avg Daily Traffic30,172 (2019)
Truck Traffic6%
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number54C0208

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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