Structure 57C0718 · San Diego County, CA

Dairy Mart Road over Tijuana River

Carries Dairy Mart Road over Tijuana River, 0.7mi S/o Route I-5.

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
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,001 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

1,001 ft end to end, longest span 217 ft: about 2.8 football fields. 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.

Built199729 years old
Length1000.7 ft305 m
Daily traffic2,130counted 2024
Last inspectedJune 2024every 24 months

Location

StateCalifornia
CountySan Diego
Location0.7mi S/o Route I-5
CarriesDairy Mart Road
CrossesTijuana River
Coordinates32.54646, -117.06617

Physical Characteristics

MaterialConcrete
DesignBox Beam - Multiple
Total Length1000.7 ft (305 m)
Max Span216.5 ft (66 m)
Deck Width47.9 ft (14.6 m)
Deck Area4,453 sq m
Main Spans5
Year Built1997

Traffic

Avg Daily Traffic2,130 (2024)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number57C0718

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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