Dutch and German backers admit dams would create severe environmental impacts, while critics say highway bridge linking Scotland and Northern Ireland would be technically challenging.
Records of utility, contractors and others are sought in a widening investigation stemming from federal criminal charges filed against the city's public works director.
RFQs, issued Feb. 4, will short-list vendors for projects to replace Manhattan's ubiquitous jail with four $1-billion facilities — and potentially reshape the city's corrections philosophy.