Structure 54 0783G · San Bernardino County, CA

N15 Truck Bypass over I 215 NB & S15-s215

Carries N15 Truck Bypass over I 215 NB & S15-s215, 08-sbd-015-m16.35.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT334 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 7/9

334 ft end to end, longest span 192 ft: about 5 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.

Built196957 years old
Length334.0 ft101.8 m
Daily traffic2,113counted 2018
Last inspectedJanuary 2025every 24 months

Location

StateCalifornia
CountySan Bernardino
Location08-sbd-015-m16.35
CarriesN15 Truck Bypass
CrossesI 215 NB & S15-s215
Coordinates34.22467, -117.40946

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length334.0 ft (101.8 m)
Max Span191.9 ft (58.5 m)
Deck Width53.1 ft (16.2 m)
Deck Area1649.2 sq m
Main Spans2
Year Built1969

Traffic

Avg Daily Traffic2,113 (2018)
Truck Traffic14%
Lanes On Bridge2
Lanes Under Bridge7

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number54 0783G

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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