Structure 53C1705 · Los Angeles County, CA

North Broadway over Hillside North Broadway

Carries North Broadway over Hillside North Broadway, 1.0 Mi N Of U.s.-101.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT484 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

484 ft end to end, longest span 15 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 slab bridge.

Built192997 years old
Length483.9 ft147.5 m
Daily traffic23,420counted 2016
Last inspectedMay 2024every 24 months

Location

StateCalifornia
CountyLos Angeles
Location1.0 Mi N Of U.s.-101
CarriesNorth Broadway
CrossesHillside North Broadway
Coordinates34.06882, -118.23317

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length483.9 ft (147.5 m)
Max Span15.1 ft (4.6 m)
Deck Width12.1 ft (3.7 m)
Deck Area545.8 sq m
Main Spans32
Year Built1929

Traffic

Avg Daily Traffic23,420 (2016)
Truck Traffic2%
Lanes On Bridge4

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number53C1705

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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