County of Los Angeles Storm Drainage Channels | City of Industry, California | Projects

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City of Industry, California

County of Los Angeles Storm Drainage Channels
Develop Condition Assessment Protocol

In order to properly maintain its extensive inventory of reinforced concrete drainage channel walls, the County of Los Angeles needed to develop a practical approach for evaluating wall conditions.

CLIENT
County of Los Angeles, Department of Public Works

STRUCTURE
Hundreds of miles of reinforced concrete storm drainage channels traverse Los Angeles County. These open channels have reinforced concrete side walls that are typically 10 to 15 feet tall. Many of these structures are decades old and are exhibiting various forms of deterioration.

SOLUTION
WJE evaluated the effectiveness of an array of nondestructive testing techniques, including impact echo, ground penetrating radar, and half-cell potential measurement, by performing extensive on-site testing. Selected excavating and coring was done to verify test findings and to obtain material samples for petrographic, chemical, and strength evaluations in our laboratory. Based on our field and laboratory efforts, we were able to develop a reliable, cost-effective procedure for future wall evaluations.

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RELATED PROJECTS

STRUCTURE

Civil Structure

SERVICE
Materials Evaluation and Research
Testing and Instrumentation