Dam

Drone photo of dam on upper Otay Lakes Reservoir. It is covered in graffiti.

CA officials have the power to fix the state’s riskiest dams. They’ve never used it

California’s 40 most hazardous dams would endanger up to 1.5 million people if they failed.

October 15, 2026 - Cal Matters

The Leeland Dam, nestled between two buildings with pointed roofs. People watch the water.

Michigan Senate votes to revise 'lax' dam safety laws

A Bridge Michigan investigation found more than 100,000 Michigan residents live in the floodpath of a high or significant-hazard dam.

October 6, 2026 - The Associated Press

Feather River Dam

N.Y.C. Looking at Deal for Canadian Hydroelectricity

The city is considering a contract to purchase hydroelectricity from Quebec and might also provide funding for the energy infrastructure.

November 12, 2019 - Politico

Patapsco River

Dam Removal Complete on Maryland's Patapasco River

The Bloede Dam was the most downstream of a series of three dams on the Patapsco River in the Patapsco Valley State Park in Maryland. Now all three dams have been removed, concluding with the Bloede Dam, and the river runs free.

September 13, 2019 - American Rivers

Yosemite National Park

Editorial See Ulterior Motives in Recent Hetch Hetchy Discussion

There have been multiple movements to remove the Hetch Hetchy Reservoir, but the most recent flirtation with the idea comes from Interior Secretary Ryan Zinke. A Chronicle editorial argues Zinke's interest lacks good faith.

August 3, 2018 - The San Francisco Chronicle

Peace River

Opposition to $6.9 Billion Dam Proposal in British Columbia

A proposal to dam the Peace River, flooding 5,500 hectares (or about 21 square miles), has met resistance from the legal and scientific communities in Canada.

June 12, 2016 - The Georgia Straight

Brazil Approves Controversial Dam

The Brazilian government has approved a new hydroelectric dam in the Amazon. Many locals and environmentalists are fuming.

February 5, 2010 - Guardian

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.