Structure 57 0332L · San Diego County, CA

State Route 75 over Silver Strand State Pk U

Carries State Route 75 over Silver Strand State Pk U, 11-sd-075-13.97-cord.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT113 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

113 ft end to end, longest span 52 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.

Built198937 years old
Length112.9 ft34.4 m
Daily traffic23,400counted 2021
Last inspectedSeptember 2024every 48 months

Location

StateCalifornia
CountySan Diego
Location11-sd-075-13.97-cord
CarriesState Route 75
CrossesSilver Strand State Pk U
Coordinates32.62492, -117.13800

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignSlab
Total Length112.9 ft (34.4 m)
Max Span51.8 ft (15.8 m)
Deck Width42.0 ft (12.8 m)
Deck Area440.3 sq m
Main Spans3
Year Built1989

Traffic

Avg Daily Traffic23,400 (2021)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number57 0332L

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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