Structure 57C0762 · San Diego County, CA

Cannon Road over Agua Hedionda Channel

Carries Cannon Road over Agua Hedionda Channel, 100 Ft S/o El Camino Real.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT134 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 7/9

134 ft end to end, longest span 48 ft. 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 slab bridge.

Built200224 years old
Length133.9 ft40.8 m
Daily traffic11,075counted 2017
Last inspectedAugust 2023every 24 months

Location

StateCalifornia
CountySan Diego
Location100 Ft S/o El Camino Real
CarriesCannon Road
CrossesAgua Hedionda Channel
Coordinates33.14867, -117.29784

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length133.9 ft (40.8 m)
Max Span47.9 ft (14.6 m)
Deck Width95.1 ft (29 m)
Deck Area1183.2 sq m
Main Spans3
Year Built2002

Traffic

Avg Daily Traffic11,075 (2017)
Truck Traffic4%
Lanes On Bridge6

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number57C0762

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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