Structure 57 1152F · San Diego County, CA

S125-w905 over Otay Mesa RD

Carries S125-w905 over Otay Mesa RD, 11-sd-125-0.80l.

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 FT186 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

186 ft end to end: about 3 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.

Built20224 years old
Length186.4 ft56.8 m
Daily traffic9,000counted 2022
Last inspectedMay 2024every 24 months

Location

StateCalifornia
CountySan Diego
Location11-sd-125-0.80l
CarriesS125-w905
CrossesOtay Mesa RD
Coordinates32.56733, -116.94928

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Single/Spread
Total Length186.4 ft (56.8 m)
Max Span186.4 ft (56.8 m)
Deck Width37.4 ft (11.4 m)
Deck Area647.5 sq m
Main Spans1
Year Built2022

Traffic

Avg Daily Traffic9,000 (2022)
Truck Traffic1%
Lanes On Bridge2
Lanes Under Bridge7

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 1152F

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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