Structure 54 0621L · San Bernardino County, CA

Interstate 15 SB over Wheaton Wash

Carries Interstate 15 SB over Wheaton Wash, 08-sbd-015-173.84l.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating4/9 · Poor
Channelnot part of overall3/9 · Serious
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT213 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 4/9 · sets the rating

213 ft end to end, longest span 25 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 slab bridge.

Built1963rebuilt 2017
Length212.9 ft64.9 m
Daily traffic18,500counted 2020
Last inspectedMarch 2024every 24 months

Location

StateCalifornia
CountySan Bernardino
Location08-sbd-015-173.84l
CarriesInterstate 15 SB
CrossesWheaton Wash
Coordinates35.46769, -115.48779

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length212.9 ft (64.9 m)
Max Span25.3 ft (7.7 m)
Deck Width59.1 ft (18 m)
Deck Area1168.2 sq m
Main Spans9
Year Built1963 (reconstructed 2017)

Traffic

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

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number54 0621L

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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