Image: corrosioncp.com
A senior corrosion engineer with Corrosion Protection Solutions in Northern California, David Aimal Kashifi designs and tests systems of cathodic protection and corrosion control. David Aimal Kashifi has extensive experience in designing systems that extend the lifespan of critical infrastructure across the country.
Corrosion is a major public safety issue affecting metal infrastructure such as steel-reinforced concrete, bridges, and pipelines. One recent corrosion-related issue in the San Francisco Bay Area involves the Bay Bridge tunnel, which passes through Yerba Buena Island. In January, 2016, a car passing through the 80-year old structure was hit by a chunk of falling concrete.
A subsequent survey of the tunnel revealed a dozen areas where concrete is separating from the tunnel wall. The culprit is corrosion, related to water that leaks from the upper deck through approximately 250 drain openings into the tunnel. In the short term, the Metropolitan Transportation Commission has advised drivers to exercise caution as they drive through the tunnel. In the longer term, it is critical to address these major corrosion and structural design issues.
David Kashifi 