Structure 53 3034R · Los Angeles County, CA

NB RT 103 Off-ramp over Open Ground

Carries NB RT 103 Off-ramp over Open Ground, 07-la-103-0.01-lbch.

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 FT442 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

442 ft end to end, longest span 170 ft: about 6 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.

Built201511 years old
Length442.3 ft134.8 m
Daily traffic14,400counted 2021
Last inspectedFebruary 2024every 24 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-103-0.01-lbch
CarriesNB RT 103 Off-ramp
CrossesOpen Ground
Coordinates33.77097, -118.24000

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length442.3 ft (134.8 m)
Max Span169.9 ft (51.8 m)
Deck Width61.7 ft (18.8 m)
Deck Area2534.2 sq m
Main Spans3
Year Built2015

Traffic

Avg Daily Traffic14,400 (2021)
Truck Traffic40%
Lanes On Bridge3

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number53 3034R

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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