Structure 53 1873G · Los Angeles County, CA

E60-n57 Connector over Prospectors Road

Carries E60-n57 Connector over Prospectors Road, 07-la-060-r25.36-dmbr.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT154 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

154 ft end to end, longest span 80 ft: about 2 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
Length153.9 ft46.9 m
Daily traffic71,400counted 2015
Last inspectedJanuary 2025every 24 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-060-r25.36-dmbr
CarriesE60-n57 Connector
CrossesProspectors Road
Coordinates34.02042, -117.81402

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length153.9 ft (46.9 m)
Max Span80.1 ft (24.4 m)
Deck Width52.2 ft (15.9 m)
Deck Area745.7 sq m
Main Spans3
Year Built1970

Traffic

Avg Daily Traffic71,400 (2015)
Truck Traffic10%
Lanes On Bridge3
Lanes Under Bridge2

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 1873G

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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