Structure 57 1121G · San Diego County, CA

E52-n67 Connector over Magnolia AVE

Carries E52-n67 Connector over Magnolia AVE, 11-sd-052-17.27.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,724 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

1,724 ft end to end, longest span 187 ft: about 4.8 football fields. 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
Length1724.1 ft525.5 m
Daily traffic14,300counted 2019
Last inspectedApril 2023every 24 months

Location

StateCalifornia
CountySan Diego
Location11-sd-052-17.27
CarriesE52-n67 Connector
CrossesMagnolia AVE
Coordinates32.83260, -116.96346

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length1724.1 ft (525.5 m)
Max Span187.0 ft (57 m)
Deck Width41.3 ft (12.6 m)
Deck Area6621.3 sq m
Main Spans10
Year Built2011

Traffic

Avg Daily Traffic14,300 (2019)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge7

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number57 1121G

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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