WICKHAM George Wickham, the former principal of San Francisco tunnel and geotechnical engineer Jacobs Associates Inc. who was known for his cost-estimating expertise, died on Oct. 25 in Lake Wildwood, Calif. He was 89. Wickham joined the firm in 1957 after 10 years of work for a contractor. He co-authored a 1974 research paper that introduced rock-structure rating methodology to tunnel design, according to Jacobs. The approach quantifies and predicts the support required for a tunnel based on key geologic parameters. Says the company, “Others have built on this work to produce rock-mass classification systems” that are widely used in
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.