Structure 54 0650 · San Bernardino County, CA

Sierra Avenue over State Route 210

Carries Sierra Avenue over State Route 210, 08-sbd-210-14.93-fna.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT274 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

274 ft end to end, longest span 139 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.

Built200125 years old
Length274.0 ft83.5 m
Daily traffic9,500counted 2015
Last inspectedFebruary 2025every 24 months

Location

StateCalifornia
CountySan Bernardino
Location08-sbd-210-14.93-fna
CarriesSierra Avenue
CrossesState Route 210
Coordinates34.13673, -117.43625

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length274.0 ft (83.5 m)
Max Span139.4 ft (42.5 m)
Deck Width157.2 ft (47.9 m)
Deck Area3999.7 sq m
Main Spans2
Year Built2001

Traffic

Avg Daily Traffic9,500 (2015)
Truck Traffic7%
Lanes On Bridge7
Lanes Under Bridge10

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number54 0650

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.

Nearby Bridges