Structure 57 0713L · San Diego County, CA

Interstate 5 SB over San Luis Rey River

Carries Interstate 5 SB over San Luis Rey River, 11-sd-005-r54.04-ocn.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT678 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

678 ft end to end, longest span 133 ft: about 1.9 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.

Built197155 years old
Length678.1 ft206.7 m
Daily traffic78,500counted 2020
Last inspectedApril 2024every 24 months

Location

StateCalifornia
CountySan Diego
Location11-sd-005-r54.04-ocn
CarriesInterstate 5 SB
CrossesSan Luis Rey River
Coordinates33.20590, -117.38434

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length678.1 ft (206.7 m)
Max Span132.9 ft (40.5 m)
Deck Width77.1 ft (23.5 m)
Deck Area4857.4 sq m
Main Spans9
Year Built1971

Traffic

Avg Daily Traffic78,500 (2020)
Truck Traffic6%
Lanes On Bridge5

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number57 0713L

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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