Structure 53 1471 · Los Angeles County, CA

State Route 47 over San Pedro Terminal Isl

Carries State Route 47 over San Pedro Terminal Isl, 07-la-047-0.86.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
6,062 FT OVERALL1,000 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 7/9Substructure 7/9

6,062 ft end to end, longest span 1,500 ft: about 17 football fields, or 1.1 miles. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 suspension bridge.

Built196363 years old
Length6062.3 ft1847.8 m
Daily traffic58,000counted 2020
Last inspectedOctober 2023every 24 months

Location

StateCalifornia
CountyLos Angeles
Location07-la-047-0.86
CarriesState Route 47
CrossesSan Pedro Terminal Isl
Coordinates33.74945, -118.28123

Physical Characteristics

MaterialSteel
DesignSuspension
Total Length6062.3 ft (1847.8 m)
Max Span1500.0 ft (457.2 m)
Deck Width58.1 ft (17.7 m)
Deck Area32706.1 sq m
Main Spans3
Year Built1963

Traffic

Avg Daily Traffic58,000 (2020)
Truck Traffic11%
Lanes On Bridge4
Lanes Under Bridge8

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number53 1471

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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