Mitch,
I think a lot of this comes down to local requirements and company policies/practices. I was talking to an older engineer the other day about the circumvention of proper review channels at a previous firm: engineers planning to be out of the office with an upcoming deadline would sign the: "performed by" line on calculations, leave the "checked by" blank, and also sign for "approved by", before the calc had been reviewed. This gave the reviewer a blank check, and actually discouraged them from finding mistakes.
The standard of care and managing liability are powerful forces to keep engineers dotting i's and crossing t's, but clearly given that disaster-causing mistakes are still made, these incentives are not a complete solution. I think we need to examine these failures with more of an eye towards cultural and process factors that lead to technical mistakes. Owners don't know they're taking on risk of loss of life when they pursue aggressive schedules, bid projects fast-track, and reward consultants who "get it done" on whatever timeline, and with whatever constraints, but engineers should.
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Christian Parker P.E., M.ASCE
Structural Project Engineer
Chicago IL
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