Large or small - does dam size matter?

IWP&DC asked members of the US dams industry for their thoughts on whether dam size matters, and what are the prospects for future construction across the country? Responses:
1. The future of US dams is dependent on the right dam (large or small), at the right location, at the right time - Michael Rogers, Global Dams Practice Leader for MWH Global.
2. There continues to be sharing of lessons learned on both large and small projects - Daniel Johnson, Principal of Dams and Hydropower at AECOM in Colorado; and Joe Kula, Practice Leader for Dams, Reservoir and Levees at AECOM in Maryland.
3. There will certainly be opportunities for the construction of large dams in the future - Eric B Kollgaard, independent consultant based in California.
4. The impact of a dam varies with the river, the dam’s design, and the projected use - Jack Cassidy, Independent Consultant based in California.
5. In the era of the Clean power Plan hydropower is more important than ever - United States Society on Dams (USSD) – compiled by John Wolfhope, President; Dean Durkee, Vice President; Manoshree Sundaram, Treasurer; Dan Wade, Board member; and Gene Guilford, Executive Director.