Structure 53C1827 · Los Angeles County, CA

Grand AVE over Transit Tunnel

Carries Grand AVE over Transit Tunnel, Betw. 3rd ST & 4th ST.

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
CAR · 15 FT31 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

31 ft end to end. Lengths and the car 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.

Built198244 years old
Length30.8 ft9.4 m
Daily traffic8,212counted 2018
Last inspectedAugust 2022every 48 months

Location

StateCalifornia
CountyLos Angeles
LocationBetw. 3rd ST & 4th ST
CarriesGrand AVE
CrossesTransit Tunnel
Coordinates34.05142, -118.25254

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length30.8 ft (9.4 m)
Max Span27.9 ft (8.5 m)
Deck Width84.0 ft (25.6 m)
Deck Area240.6 sq m
Main Spans1
Year Built1982

Traffic

Avg Daily Traffic8,212 (2018)
Truck Traffic2%
Lanes On Bridge4

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number53C1827

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.

Nearby Bridges