These are some extra links related to journalism using databases on dams, levees, impoundments, etc.
"Colorado Flood: Dams Break in Larimer And Adams Counties; Overflowing in Boulder," Denver Post, September 12, 2013, by David Olinger and Bruce Finley
See Heather Duncan's feature package of Feb. 2013 in the Macon Telegraph.
"Neglected Dams Are Holding Back Trouble," Macon Telegraph, February 17, 2013, by S. Heather Duncan
"Lakeside Dam Repair Efforts Dragging On," Macon Telegraph, February 18, 2013, by S. Heather Duncan.
"Interactive Map: Middle Georgia Dams," Macon Telegraph, February 16, 2013, by Mike Stucka.
"Scant Funding, Scant Dam Oversight," Macon Telegraph, February 17, 2013, by S. Heather Duncan.
"Videos: How Dams Become Unsafe, Fail," Macon Telegraph, February 16, 2013 (from ASDSO)
"Managing Dams Can Be a Struggle for Homeowner Associations," Macon Telegraph, February 18, 2013
Advertisement 
