Structure 54 1112L · San Bernardino County, CA

State Route 58 WB over Bnsf Ry Up Rr & Amtrak

Carries State Route 58 WB over Bnsf Ry Up Rr & Amtrak, 08-sbd-058-r33.41-bsw.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT308 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

308 ft end to end, longest span 161 ft: about 4 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.

Built199729 years old
Length308.4 ft94 m
Daily traffic6,750counted 2019
Last inspectedApril 2023every 24 months

Location

StateCalifornia
CountySan Bernardino
Location08-sbd-058-r33.41-bsw
CarriesState Route 58 WB
CrossesBnsf Ry Up Rr & Amtrak
Coordinates34.88644, -117.09231

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length308.4 ft (94 m)
Max Span160.8 ft (49 m)
Deck Width56.4 ft (17.2 m)
Deck Area1616.8 sq m
Main Spans2
Year Built1997

Traffic

Avg Daily Traffic6,750 (2019)
Truck Traffic50%
Lanes On Bridge3

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number54 1112L

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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