Summary of Geologic and Hydrologic Information Pertinent to Tunneling in Selected Urban Areas,

摘要

A summary of the available geologic and hydrologic information pertinent to tunneling technology and underground construction for 34 U.S. urban areas is presented. Each summary includes a map showing the area of coverage,the geologic and ground water situation to a depth of 200feet,special features related to tunneling,and a list of sources. Selected urban areas surveyed were:Atlanta,Baltimore,Boston,Providence,Buffalo,Chicago,Cincinnati,Cleveland,Columbus,Dallas,Denver,Detroit,Fort Lauderdale,Fort Worth,Houston,Indianapolis,Kansas City,Los Angeles,Louisville,Memphis,Miami,Milwaukee,Minneapolis,St. Paul,New Orleans,New York City,Philadelphia,Trenton,Phoenix,Pittsburgh,Portland,St. Louis,San Antonio,San Diego,San Francisco,Seattle,Washington, D.C.