[Lt. Washburn]

Everyone always mentions that aside from the cost, this building was supposed to have been constructed with poor concrete making it unsafe and unfinishable. Where is the source for this? From what I can find, this is pure speculation. I can't find anything that points to some authority for the information. Although the same could be said for the idea that they ran out of money/energy/materials/etc. to complete it, at least if those were the reasons, then it could be restarted, whereas the concrete story suggests that nothing can be done for it. Does anyone know whether this information rises above outsider speculation?