What Is A Dam? A dam is a structure, often quite large, built across a river to retain its flow of water in a reservoir for various purposes, most commonly hydropower. In the U.S. there are over 90,000 dams over 6 feet tall, according to American Rivers. In 2015 half of Earth's major rivers contained … Continue reading Oh, dam!
Every year since 1986, American Rivers has teamed up with river conservationists to release an annual report of America's Most Endangered Rivers. This report highlights a number of threats to our rivers and examines risks to communities and wildlife.Three of these Endangered Rivers are tributaries to two NWNL case-study watersheds: The Columbia River Basin (The … Continue reading Protect America’s Endangered Rivers