Structure 54 0745 · San Bernardino County, CA

Ramona Avenue over State Route 60

Carries Ramona Avenue over State Route 60, 08-sbd-060-r1.37-chn.

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 FT233 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 7/9

233 ft end to end, longest span 118 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 box-beam bridge.

Built197056 years old
Length232.9 ft71 m
Daily traffic16,500counted 2023
Last inspectedSeptember 2023every 24 months

Location

StateCalifornia
CountySan Bernardino
Location08-sbd-060-r1.37-chn
CarriesRamona Avenue
CrossesState Route 60
Coordinates34.03047, -117.70699

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length232.9 ft (71 m)
Max Span118.1 ft (36 m)
Deck Width77.4 ft (23.6 m)
Deck Area1675.6 sq m
Main Spans2
Year Built1970

Traffic

Avg Daily Traffic16,500 (2023)
Truck Traffic2%
Lanes On Bridge5
Lanes Under Bridge10

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 0745

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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