Structure 53C1166 · Los Angeles County, CA

First ST over L A Riv Up Bnsf Myers

Carries First ST over L A Riv Up Bnsf Myers, 0.5 Mi W/o FWY 101.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,327 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

1,327 ft end to end, longest span 148 ft: about 3.7 football fields. 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 deck arch.

Built1929rebuilt 2011
Length1327.1 ft404.5 m
Daily traffic24,550counted 2018
Last inspectedAugust 2024every 24 months

Location

StateCalifornia
CountyLos Angeles
Location0.5 Mi W/o FWY 101
CarriesFirst ST
CrossesL A Riv Up Bnsf Myers
Coordinates34.04818, -118.23275

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length1327.1 ft (404.5 m)
Max Span148.0 ft (45.1 m)
Deck Width98.4 ft (30 m)
Deck Area12,135 sq m
Main Spans2
Year Built1929 (reconstructed 2011)

Traffic

Avg Daily Traffic24,550 (2018)
Truck Traffic3%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number53C1166

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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