Structure 57 1219 · San Diego County, CA

Carroll Canyon RD over Interstate 15 W/ Hov

Carries Carroll Canyon RD over Interstate 15 W/ Hov, 11-sd-015-m15.00-sd.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT303 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

303 ft end to end, longest span 125 ft: about 4 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.

Built201115 years old
Length303.1 ft92.4 m
Daily traffic2,750counted 2020
Last inspectedJuly 2023every 24 months

Location

StateCalifornia
CountySan Diego
Location11-sd-015-m15.00-sd
CarriesCarroll Canyon RD
CrossesInterstate 15 W/ Hov
Coordinates32.90332, -117.11686

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length303.1 ft (92.4 m)
Max Span125.0 ft (38.1 m)
Deck Width92.5 ft (28.2 m)
Deck Area2605.7 sq m
Main Spans3
Year Built2011

Traffic

Avg Daily Traffic2,750 (2020)
Truck Traffic10%
Lanes On Bridge5
Lanes Under Bridge16

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number57 1219

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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