Structure 57 1187L · San Diego County, CA

Route 125 SB over Otay Lakes Road

Carries Route 125 SB over Otay Lakes Road, 11-sd-125-4.04.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT229 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

229 ft end to end, longest span 121 ft: 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.

Built200719 years old
Length228.7 ft69.7 m
Daily traffic21,100counted 2022
Last inspectedMay 2024every 24 months

Location

StateCalifornia
CountySan Diego
Location11-sd-125-4.04
CarriesRoute 125 SB
CrossesOtay Lakes Road
Coordinates32.64574, -116.97097

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length228.7 ft (69.7 m)
Max Span121.4 ft (37 m)
Deck Width59.1 ft (18 m)
Deck Area1254.6 sq m
Main Spans2
Year Built2007

Traffic

Avg Daily Traffic21,100 (2022)
Truck Traffic1%
Lanes On Bridge3
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 1187L

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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