Structure 57 0776L · San Diego County, CA

Interstate 805 SB over San Ysidro BLVD

Carries Interstate 805 SB over San Ysidro BLVD, 11-sd-805-0.65-sd.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT168 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 7/9

168 ft end to end: about 2 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
Length168.0 ft51.2 m
Daily traffic26,000counted 2022
Last inspectedMay 2024every 24 months

Location

StateCalifornia
CountySan Diego
Location11-sd-805-0.65-sd
CarriesInterstate 805 SB
CrossesSan Ysidro BLVD
Coordinates32.55200, -117.04128

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length168.0 ft (51.2 m)
Max Span165.0 ft (50.3 m)
Deck Width68.2 ft (20.8 m)
Deck Area1065.0 sq m
Main Spans1
Year Built1975

Traffic

Avg Daily Traffic26,000 (2022)
Truck Traffic4%
Lanes On Bridge4
Lanes Under Bridge6

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number57 0776L

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.

Nearby Bridges