Structure 57 0777H · San Diego County, CA

W905-s805&n805w905 over Interstate 805 & Ramps

Carries W905-s805&n805w905 over Interstate 805 & Ramps, 11-sd-905-5.14-sd.

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 FT325 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

325 ft end to end, longest span 188 ft: about 5 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.

Built197551 years old
Length325.1 ft99.1 m
Daily traffic3,000counted 2020
Last inspectedJanuary 2024every 24 months

Location

StateCalifornia
CountySan Diego
Location11-sd-905-5.14-sd
CarriesW905-s805&n805w905
CrossesInterstate 805 & Ramps
Coordinates32.56847, -117.04096

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length325.1 ft (99.1 m)
Max Span188.0 ft (57.3 m)
Deck Width40.4 ft (12.3 m)
Deck Area1218.9 sq m
Main Spans2
Year Built1975

Traffic

Avg Daily Traffic3,000 (2020)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge11

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number57 0777H

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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