Between the Poles: Structurally deficient bridge database in Google Maps

Geoff Zeiss

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November 05, 2011

Structurally deficient bridge database in Google Maps

Transportation for America has put the National Bridge Inventory of 604,474 bridges on line with Google Maps so you can zoom to any area in the U.S. and see which bridges are structurally deficient and the daily traffic on them. In this example I've zoomed to the bridge where U.S. 101 crosses Hoover St in Los Angeles County. This bridge is 62 years old, classified as SD and averages over 273,000 cars per day.

Structurally deficient

Built 1949 National bridge ID 530612

273,200 cars per day (avg.)

Ratings

Deck:4 (POOR CONDITION - advanced corrosion, deterioration, cracking or chipping. Also significant erosion of concrete bridge piers)
Superstructure:7 (GOOD CONDITION - some minor problems)
Substructure:7 (GOOD CONDITION - some minor problems)

Inspections

Inspection frequency: 24 months
Last inspection: February-2008

Posted at 01:15 PM in Aging infrastructure, Road Infrastructure, Transportation infrastructure | Permalink

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Between the Poles

Geoff Zeiss

October 2024

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November 05, 2011

Structurally deficient bridge database in Google Maps

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