20 Years of Dam Removal Projects

Dam removal has its benefits, according to the example set by a particularly historic dam removal in the United States, which took place on July 1, 1999.

2 minute read

July 2, 2019, 11:00 AM PDT

By James Brasuell @CasualBrasuell


Kennebec River

The Kennebec River runs free past the city of Augusta, Maine, former location of the Edwards Dam. | Sean Pavone / Shutterstock

The first time the federal government ordered the removal of dam removed happened 20 years ago on the Kennebec River in Maine.

The reason for the removal of the Edwards Dam, according to an article by Amy Souers Kober: the dam's costs outweighed its benefits.

Souers Kober celebrates that historic milestone in water infrastructure and river restoration by cataloguing some of the country's greatest dam removal successes in the ensuing decades—and there were plenty of options to choose from, especially of late.

"According to the dam removal database maintained by American Rivers, 1,605 dams have been removed in the U.S. since 1912," according to the article. "Most of these (1,199) have occurred since the removal of Edwards Dam in 1999. The year with the most dam removals was 2018 (99 dams removed). 2017 was the second most productive year, with 91 dams removed."

For records of success, Souers Kober doesn't have to look beyond that first example: "Our partners at the Natural Resources Council of Maine report that since Edwards Dam was removed on July 1, 1999, tens of millions of alewives, blueback herring, striped bass, shad, and other sea-run fish have traveled up the Kennebec River, past the former Edwards Dam, which blocked upstream passage since 1837.  Abundant osprey, bald eagles, sturgeon and other wildlife have also returned."

But the article doesn't stop with that first example, surveying the nation's regions for more recent examples of design removal success. American Rivers also provides an interactive map of dam removals for more exploring.

Tuesday, July 2, 2019 in American Rivers

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Cover CM Credits, Earn Certificates, Push Your Career Forward

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

June 11, 2025 - Diana Ionescu

Metrorail train pulling into newly opened subterranean station in Washington, D.C. with crowd on platform taking photos.

Congressman Proposes Bill to Rename DC Metro “Trump Train”

The Make Autorail Great Again Act would withhold federal funding to the system until the Washington Metropolitan Area Transit Authority (WMATA), rebrands as the Washington Metropolitan Authority for Greater Access (WMAGA).

June 2, 2025 - The Hill

Large crowd on street in San Francisco, California during Oktoberfest festival.

The Simple Legislative Tool Transforming Vacant Downtowns

In California, Michigan and Georgia, an easy win is bringing dollars — and delight — back to city centers.

June 2, 2025 - Robbie Silver

Color-coded map of labor & delivery departments and losses in United States.

The States Losing Rural Delivery Rooms at an Alarming Pace

In some states, as few as 9% of rural hospitals still deliver babies. As a result, rising pre-term births, no adequate pre-term care and "harrowing" close calls are a growing reality.

6 hours ago - Maine Morning Star

Street scene in Kathmandu, Nepal with yellow minibuses and other traffic.

The Small South Asian Republic Going all in on EVs

Thanks to one simple policy change less than five years ago, 65% of new cars in this Himalayan country are now electric.

June 15 - Fast Company

Bike lane in Washington D.C. protected by low concrete barriers.

DC Backpedals on Bike Lane Protection, Swaps Barriers for Paint

Citing aesthetic concerns, the city is removing the concrete barriers and flexposts that once separated Arizona Avenue cyclists from motor vehicles.

June 15 - The Washington Post