professional engineering and technical services directed to the needs of the specialized heavy lifting and transportation industry. Following are brief descriptions of the firm's areas... of service. Lift Planning and Engineering - Mobile Cranes Planning, design, and analysis of special lifts using mobile cranes, including cranes with heavy lift attachments (Ringers...-mounted cranes in a wide variety of construction and industrial conditions. Third-party review of lift plans, engineering, and operations procedures to verify compliance with safety...

Associates, Inc. He entered the specialized heavy rigging and transportation industry in 1974 in the employ of Hoffman International, Inc. and has since worked for VSL Corporation... in America and Who's Who in Science and Engineering. Mr. Duerr has published numerous papers on heavy lift engineering and transportation engineering in industry magazines... of lifting and transportation projects in industries as diverse as power generation, manufacturing, petrochemicals, medicine, the space program, and high-energy physics research. Mr...

provides engineering services with respect to alternative lifting methods. Telescopic Hydraulic Gantries 2DM Associates has been engaged in the planning and engineering of heavy lifts... using telescopic hydraulic gantries since the firm's founding in 1986. 2DM Associates president David Duerr, P.E. serves on the ASME B30.1 Subcommittee (Jacks, Industrial Rollers... of hydraulic gantries. Strand Jack Lifting Systems 2DM Associates has provided engineering services for the design of strand jack-based lifting systems and the planning of numerous heavy...

lectures regularly on gantry lift planning and engineering at construction industry conferences around the United States. Six guides and standards that address heavy lifting... Duerr, P.E. has been planning and performing heavy lifts with hydraulic gantry systems since 1977 and has been involved in the design of gantries since 1987. As a result... for Hydraulic Jacking Systems was the first formal industry guide in this field. It was published in 1996, but is no longer available, having been replaced by the following update. SC...

president David Duerr, P.E. conducts lectures and training sessions on various aspects of heavy lifting and rigging. Past lectures have covered below-the-hook rigging, lifting... a client's needs. Talks have been given for industry groups, individual companies, and for civil engineering students. David Duerr will be speaking at the SC&RA Crane & Rigging Workshop..., Mr. Duerr gave a presentation at the Industrial Crane & Hoist Conference in Houston titled "Telescopic Hydraulic Gantries - Regulations and Standards" and a presentation...