Structure 57 0691R · San Diego County, CA

Interstate 8 EB over Las Bancas RD

Carries Interstate 8 EB over Las Bancas RD, 11-sd-008-r40.84r.

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
CAR · 15 FT73 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

73 ft end to end. Lengths and the car 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.

Built197452 years old
Length73.2 ft22.3 m
Daily traffic9,800counted 2014
Last inspectedJanuary 2024every 24 months

Location

StateCalifornia
CountySan Diego
Location11-sd-008-r40.84r
CarriesInterstate 8 EB
CrossesLas Bancas RD
Coordinates32.81920, -116.57683

Physical Characteristics

MaterialConcrete
DesignBox Beam - Multiple
Total Length73.2 ft (22.3 m)
Max Span73.2 ft (22.3 m)
Deck Width54.1 ft (16.5 m)
Deck Area367.9 sq m
Main Spans1
Year Built1974

Traffic

Avg Daily Traffic9,800 (2014)
Truck Traffic13%
Lanes On Bridge3
Lanes Under Bridge1

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 0691R

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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