In 1987, after retiring from the construction industry, Jim Wiethorn joined Haag Engineering Co. and started a new career in forensic engineering. Jim provided expert consulting services related to crane, rigging and construction accidents.
After meeting Jim Wiethorn on a construction site, Matt and Jim collaborated to form the Crane Group. Matt brought additional depth and expertise for investigating and consulting on a variety of crane, rigging and construction related accidents.
Dave Palo joined Jim Wiethorn and Matt Gardiner in the Crane Group to provide technical services and added depth to their expert services with his CAD and 3D modeling skills.
Ray King joined the Crane Group full-time after first interning with the group. Ray brought technical and consulting depth with his analytical and consulting expertise.
The largest and most extensive research ever conducted in the industry, a total of 501 crane accidents were evaluated over a 30-year period.
Jim’s dissertation, “An Analysis of Critical Factors of Lift Planning to Improve Crane Safety Based on Forensic Causation of Crane Accidents” examined causation and established duties and responsibilities in accordance with ASME B30 national consensus standards.