Description: Former consulting engineering practice specializing in cranes, rigging, marine transportation, lifting and rigging equipment design, and construction accident investigation.
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From 1987 to 2019, 2DM Associates, Inc. provided professional engineering services for heavy lifting, rigging, barge transportation, mobile crane installations on land and barges, specialized lifting equipment design, accident investigation, and related technical research. Although no longer providing professional services, David Duerr, P.E. (ret.) continues to serve on ASME and NAMA standard-writing committees.
In the interest of helping contractors, facility owners, and former clients find another qualified consulting engineer, this guide has been prepared: