New report: U.S. dams, levees get D grades, need $115 billion in upgrades
The American Society of Civil Engineers (ASCE) gave America’s infrastructure a C- grade in its quadrennial assessment issued March 3. ASCE gave the nation’s flood control infrastructure – dams and levees – a D grade. This is a highly concerning assessment, given that climate change is increasingly stressing dams and levees as increased evaporation from the oceans drives heavier precipitation events.
U.S. dams need $93.6 billion in upgrades
The group’s 2021 report card gave the nation’s 91,000-plus dams a D grade, jus as they had received in each of its assessments since the first one was issued in 1998. Drawing upon the latest data from the Association of State Dam Safety Officials, ASCE estimated the cost of rehabilitating all U.S. dams at $93.6 billion, of which $27.6 billion is needed for federal dams. Over half (56.4%) of U.S. dams are privately owned. The cost to rehabilitate deficient high
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