Structure 53 2877 · Los Angeles County, CA

Baseline Road over State Route 210

Carries Baseline Road over State Route 210, 07-la-210-r51.85-cla.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT504 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

504 ft end to end, longest span 216 ft: about 7 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
Length503.6 ft153.5 m
Daily traffic78,000counted 2015
Last inspectedJanuary 2025every 24 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-210-r51.85-cla
CarriesBaseline Road
CrossesState Route 210
Coordinates34.12146, -117.69741

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Multiple
Total Length503.6 ft (153.5 m)
Max Span215.9 ft (65.8 m)
Deck Width98.4 ft (30 m)
Deck Area4,605 sq m
Main Spans3
Year Built2001

Traffic

Avg Daily Traffic78,000 (2015)
Truck Traffic2%
Lanes On Bridge6
Lanes Under Bridge10

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number53 2877

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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