Structure 54 0627R · San Bernardino County, CA

Interstate 15 NB over Ghost Town Road

Carries Interstate 15 NB over Ghost Town Road, 08-sbd-015-r81.83.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT134 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

134 ft end to end, longest span 76 ft. 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.

Built196363 years old
Length133.9 ft40.8 m
Daily traffic28,000counted 2021
Last inspectedSeptember 2023every 24 months

Location

StateCalifornia
CountySan Bernardino
Location08-sbd-015-r81.83
CarriesInterstate 15 NB
CrossesGhost Town Road
Coordinates34.90238, -116.88692

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length133.9 ft (40.8 m)
Max Span76.1 ft (23.2 m)
Deck Width41.7 ft (12.7 m)
Deck Area518.2 sq m
Main Spans3
Year Built1963

Traffic

Avg Daily Traffic28,000 (2021)
Truck Traffic20%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number54 0627R

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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