Structure 54 0288L · San Bernardino County, CA

Interstate 15 SB over Dale Ditch

Carries Interstate 15 SB over Dale Ditch, 08-sbd-015-150.30.

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
CAR · 15 FT49 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

49 ft end to end, longest span 24 ft. 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.

Built1961rebuilt 2004
Length48.6 ft14.8 m
Daily traffic18,500counted 2020
Last inspectedJanuary 2024every 24 months

Location

StateCalifornia
CountySan Bernardino
Location08-sbd-015-150.30
CarriesInterstate 15 SB
CrossesDale Ditch
Coordinates35.37811, -115.87949

Physical Characteristics

MaterialConcrete
DesignBox Beam - Multiple
Total Length48.6 ft (14.8 m)
Max Span24.3 ft (7.4 m)
Deck Width69.9 ft (21.3 m)
Deck Area315.2 sq m
Main Spans2
Year Built1961 (reconstructed 2004)

Traffic

Avg Daily Traffic18,500 (2020)
Truck Traffic20%
Lanes On Bridge3

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number54 0288L

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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