Rio Grande still high through Albuquerque, but less so

The sandbars are starting to emerge from the Rio Grande as river managers drop the flow through Albuquerque to match inflow from upstream. One of the things we’re watching as the river recedes is the vegetation on the sandbars. Did it survive the high flows? Over time, we’re seeing a trajectory from sandbar to vegetated …

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What next for Texas v. New Mexico Rio Grande suit?

Dani Prokop had a really helpful story last week explaining what happens next in the Texas v. New Mexico (and technically Colorado, too, right?) lawsuit over the rules for sharing the Rio Grande’s water. To refresh memory, the three states in February announced a proposed settlement. Key bits from Dani’s update: It’s not done yet. …

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After a high-flow spring, Albuquerque’s Rio Grande is about to drop in a hurry

We’ve been having a great year on the Rio Grande through Albuquerque, with overbanking flows to delight the river nerds and mosquitos alike. But this is about to change. Beginning next week (June 26, 2023), the Army Corps of Engineers will begin dropping flows out of Cochiti Reservoir, the main stem dam upstream of town. …

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Schmidt et al: How we got here on the Colorado River Overview

Jack Schmidt, Charles Yackulic, and Eric Kuhn have published an invaluable new overview of how we got into this mess on the Colorado River, and some of the things we need to think about to get out of it. Schmidt, John C., Charles B. Yackulic, and Eric Kuhn. “The Colorado River water crisis: Its origin …

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Deadpool Diaries: Paying to fallow may not save as much water as we think

Given that we’re about to spend a billion dollars to fallow land to reduce water use in the Colorado River Basin, it’s reasonable to ask how we can be sure we know how much water is actually being saved. The answer, according to new work by Katharine Wright and colleagues at Arizona State University, may …

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Deadpool Diaries: The Law of Shipwrecks

That boat is totally fixable. – Inkstain reader Greg This raises a fascinating legal question: whose boat is it? 43 U.S. Code § 2101 The Congress finds that— (a) States have the responsibility for management of a broad range of living and nonliving resources in State waters and submerged lands; and (b) included in the …

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Historical Perspective on the Accounting for Evaporation and System Losses in the Lower Colorado River Basin

Over the past year, the question of how to account for evaporation and system losses in the Lower Colorado River Basin has become a hot political and policy topic. With the recent Lower Basin water use reduction scheme, we seem to have set the question aside for now. But it’s not going away. My Science …

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Deadpool Diaries: June 1 Colorado River system status report

Lake Mead ended May 2023 at elevation 1,054.28 feet above sea level. That’s up five feet in a month, at a time of year when the reservoir is usually dropping, so I guess yay? It’s also up 6 1/2 feet from last year, so I guess yay? But also worth noting: Mead is down 32 …

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Deadpool Diaries: The Case for a Shitty Deal

I’ve had long conversations this week with smart friends grudgingly supporting of the Lower Basin deal to reduce Colorado River water use over the next few years. Their case for it is simple. Yes, it’s an awful deal in so many ways, but it does have the potential to generate some short term water use …

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