Looking at an industry-accepted practice, a Freese and Nichols study examined the use of small slotted drainage pipes in dams.

The Association of State Dam Safety Officials recently featured the findings of Marc Miller, PE, left, and Grady Hillhouse, PE, right, in the Journal of Dam Safety.

The Issue

Internal drains are commonly used to relieve pore pressure and control seepage in dams. These drain systems often include slotted...

Freese and Nichols joins several national organizations today to commemorate National Dam Safety Awareness Day.

There are more than 90,000 dams across the United States, many of which are vital to the nation’s infrastructure by providing drinking water, holding back flood waters, storing water to irrigate crops, providing recreation opportunities, and controlling rivers for navigable transportation. In addition, dams provide nearly half of the nation's clean, renewable electricity through hydropower generation.

Yet dams...

Freese and Nichols joins several national organizations today to commemorate the significant role dams play in American life. There are over 87,000 dams in the U.S., which provide nearly half of the nation's clean, renewable electricity as well as water supply, recreation, and agriculture and industrial support.

A joint statement from the U.S. Society on Dams, Association of State Dam Safety Officials, National Hydropower Association, Deep Foundations Institute, and the...