Thursday, August 27, 2009

USA: Over Two Thousand Dams Near Population Centers Need Repair

August 26, 2009

More than 2,000 dams near population centers are in need of repair, according to statistics released this month by the Association of State Dam Safety Officials. [High hazard potential repairs are needed.]

The National Inventory of Dams (NID), which is maintained by the U.S. Army Corps of Engineers (USACE), shows that the number of dams in the U.S. has increased to more than 85,000, but the federal government owns or regulates only 11% of those dams.

Responsibility for ensuring the safety of the rest of the nation’s dams falls to state dam safety programs. Many state dam safety programs do not have sufficient resources, funding, or staff to conduct dam safety inspections, to take appropriate enforcement actions, or to ensure proper construction by reviewing plans and performing construction inspections. For example, Texas has only 7 engineers and an annual budget of $435,000 to regulate more than 7,400 dams. Alabama does not have a dam safety program despite the fact that there are more than 2,000 dams in the state. And in some states many dams are specifically exempted from inspection by state law. In Missouri there are 740 high hazard potential dams that are exempted because they are less than 35 feet in height. the rest image by gull@ cyberspace

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