Not surprisingly, problems occurred with the early use of structures and continued to persist in latter applications. DESIGNS AND CITED PROBLEMS OF COMMONLY USED INSTREAM STRUCTURES Over the past 70 years, three basic categories of ... restoration began in the late 1960s as the environmental movement gained momentum (Thompson and Stull, 2002). ... Dams in this last group also are called Hewitt dams in honor of Edward Hewitt, the influential advocate of instreamanbsp;...
|Title||:||Humans as Geologic Agents|
|Author||:||Judy Ehlen, William C. Haneberg, Robert A. Larson|
|Publisher||:||Geological Society of America - 2005-01-01|