2DM ASSOCIATES

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.) remains available for participation in training programs and is continuing to serve on ASME and NAMA standard-writing committees... Former consulting engineering practice specializing in cranes, rigging, marine transportation, lifting and rigging equipment design, and construction accident investigation.

Also known as: 2DM Associates, Inc.