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Save the Colorado et al v. Semonite et al

  1. June 11, 2025

    Denver Appeals Decision Limiting Dam's Expansion

    The City and County of Denver has asked the Tenth Circuit to review a lower court decision that barred its municipal water utility from fully completing a hydroelectric dam expansion project.

  2. May 30, 2025

    Judge Says Stalled Colo. Dam Construction Poses Big Risks

    A Colorado federal judge has reversed course and will no longer bar Denver Water from completing a half-built dam, writing in an order that while the project was approved without a proper environmental review, there could be serious risks to people as well as the environment if the dam remains uncompleted.

  3. May 06, 2025

    Colo. Judge Wary Pausing Dam Construction Can't Be Done

    A Colorado federal judge said at the end of a daylong hearing Tuesday that she still had not heard what she needed to decide if further construction is necessary to ensure a partially constructed dam won't create public safety risks, after she had previously halted the project for further environmental review.

  4. April 04, 2025

    Judge Halts Denver Dam Work For More Enviro Review

    A Colorado federal judge has temporarily halted construction on a Denver dam, pending a hearing on what is "reasonable and necessary" to ensure the dam will be structurally safe while the federal government takes a second look at its dredging permit approval.

  5. October 18, 2024

    Judge Blasts Feds' 'Utter Failure' To Quantify Climate Impact

    A Colorado federal judge has ruled the U.S. Army Corps of Engineers violated the Clean Water Act and other federal guidelines in approving a dredging permit for a Denver dam project, calling out the agency's "utter failure" to study the impacts of climate change and alternatives that would avoid impacting wetlands.

  6. September 07, 2023

    Sierra Club Says Corps Failed To Scrutinize Colo. Dam Project

    The Sierra Club and other conservation groups urged a Colorado federal judge to vacate a permit for a project to expand a reservoir and supply the Denver metropolitan region with additional water, arguing in an opening brief that the U.S. Army Corps of Engineers conducted a "preordained" permitting process to give Denver Water its desired outcome.

  7. March 31, 2021

    Denver Escapes Sierra Club Suit Over $464M Dam Expansion

    A Colorado federal court said Wednesday that it doesn't have jurisdiction to hear the Sierra Club and other groups' challenge to the $464 million expansion of a dam in Denver because the suit is inextricably linked to a Federal Energy Regulatory Commission license for the project. 

  8. August 18, 2020

    Feds Say Circuit Courts Have Sole Power Over Colo. Dam Row

    The government told a Colorado district court it must end a coalition of environmental groups' suit challenging two agencies' authorizations of an expansion project of a dam in Colorado, insisting that only the courts of appeals have jurisdiction in the matter.

  9. December 19, 2018

    Enviros Sue Feds To Halt Colorado Dam Expansion

    Save the Colorado and a coalition of environmental groups sued the U.S. Army Corps of Engineers on Wednesday over its decision to authorize the expansion of a dam in Colorado, arguing the government never seriously considered less harmful alternatives to the project.