Stream management planning offers promise, complications — Hannah Holm

Summary of Observed Wet & Dry Surface Water Hydrology via SCW

From The Glenwood Springs Post Independent (Hannah Holm):

On a bright, early fall day in 2017, members of the Colorado Basin Roundtable stood on the banks of the Colorado River watching water slide smoothly over the Bill and Wendy Riffles near Kremmling. Willows glowed gold on the banks, and new sprouts poked up through the cobble at the water’s edge.

Most riffles don’t have names, but then most riffles aren’t constructed as part of a multi-million dollar plan to remake a damaged river. The Bill and Wendy Riffles, named after the resident ranchers, were designed to raise the level of the river back up to where it used to be so that irrigation pumps, left high and dry by a depleted river, could function. Trout habitat and riparian vegetation have also benefited.

Upstream, plans are afoot to reshape Windy Gap reservoir, which currently blocks the free movement of fish, sediment and water. The construction of a new channel around the reservoir is planned to reconnect those reaches of the river and breathe new life into the ecosystem.

These projects in Grand County are part of a multi-pronged effort to compensate for the impacts of drastic flow reductions resulting from diversions from headwaters streams across the Continental Divide to the Front Range. On average, around 300,000 acre feet of water per year crosses the divide from Grand County, dropping average annual flows at Kremmling by more than 60 percent. These numbers will go up further with the completion of a pair of recently approved projects to increase these diversions.

The prospect of increased diversions, while exacerbating the overall problem of less water in the river, also provided the leverage for Grand County to demand the resources to address problems created by decades of previous trans-mountain diversions, as well as the new ones. This involved both negotiating for more water to be left in streams at certain times and the resources to reshape portions of the river’s channel.

Early on, Grand County commissioned a detailed Stream Management Plan to define environmental flow needs. This study then guided its negotiations and project prioritization. Since the completion of the study, projects to improve flows for both irrigators and the environment, such as the Bill and Wendy Riffle project, have drawn funding from numerous sources. These include the Colorado Basin Roundtable and the Colorado Water Conservation Board (CWCB), as well as the federal Natural Resources Conservation Service. Denver Water and Northern Water have also contributed. Local irrigators have played a leading role in developing and guiding projects, as have conservation organizations such as Trout Unlimited.

The Grand County example has demonstrated that water management does not have to be a zero-sum game, with some interests benefiting only at the expense of others. The approach has inspired related efforts across Colorado, a goal in the Colorado Water Plan, and a statewide grant program to promote stream management planning.

Stream management plans exist or are underway currently for the Poudre River, the Crystal River, the Roaring Fork River, the North Fork of the Gunnison, the Upper Gunnison Basin, and the San Miguel River. New planning efforts have been proposed for the Yampa River, the Eagle River, Ouray County, the Upper San Juan River, and the middle section of the Colorado River.

In addition, the Colorado Basin Roundtable has initiated a framework project to provide tools and guidance for such efforts across the basin. The author of this article is coordinating the framework project.

As these initiatives have spread, it has become clear that environmental and agricultural water needs don’t always align as neatly as they do in Grand County, where all local water interests were affected by reduced flows. Each river basin has its own dynamics, both hydrologically and socially, that affect the approaches taken and prospects for success.

The guidance for the CWCB’s Stream Management Planning grant program focuses on assessing environmental and recreational flow needs, which have historically been less well-understood than needs for agricultural, municipal and industrial uses. However, any plan to address environmental water needs will likely require cooperation from other water users, as well. These water users need a reason to come to the table.

A growing recognition of the importance of addressing the interests of all water users from the beginning of the planning process is reflected in the names of several projects funded through the Stream Management Planning grant program. The Colorado Basin Roundtable chose the term “integrated water management plan” rather than “stream management plan” for its framework project, and the Upper Gunnison project is called a “Watershed Management Planning” project.

Inclusive labeling is not enough to bring and keep diverse stakeholders at the table, however. In order to achieve that, agricultural water users and others that rely on stream diversions need to trust that their interests are genuinely being respected. They also need a sense of common cause with their planning partners. Current planning efforts appear to be attempting to respond to these needs.

Trust levels are influenced by who leads the project as well as the stated project goals. On the middle section of the Colorado River, between Glenwood Canyon and De Beque, local conservation districts have decided to take the lead on gathering information on agricultural water needs, in order to ensure that their constituents are adequately represented. The Middle Colorado Watershed Council, which kicked off the planning effort, has welcomed their involvement.

Cultivating a sense of common cause, the Upper Gunnison Watershed Management Planning Group asserts that its mission is “to help protect existing water uses and watershed health in the Upper Gunnison Basin as we face growing pressure from increased water demands and permanent reductions in overall water supply.”

The Crystal River Plan sought to “identify, prioritize and guide management actions that honor local agricultural production, preserve existing water uses, and enhance the ecological integrity of the river.” The completed plan includes a detailed accounting of agricultural water shortages along with information on the ecological state of the river. The project on the North Fork of the Gunnison River has assessed opportunities for diversion structure upgrades that could benefit irrigators and improve safety for boaters.

These are complicated processes, with many opportunities for conflict and failure. However, the potential payoffs of healthier streams and more water security, as well as enhanced mutual understanding across the whole community of water users, could make these projects well worth the effort.

Hannah Holm coordinates the Hutchins Water Center at Colorado Mesa University, which promotes research, education and dialogue to address the water issues facing the Upper Colorado River Basin. Learn more at http://www.coloradomesa.edu/water-center.

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