Faced with costs, officials scale back Gila diversion plans — New Mexico Political Report

Gila River watershed. Graphic credit: Wikimedia

This is Laura Paskus’ final article for The New Mexico Political Report:

Plans for the Gila River diversion have changed. Again.

At a meeting in Silver City on July 2, members of the New Mexico Central Arizona Project Entity voted to scale back development plans on the Gila River and one of its tributaries in southwestern New Mexico.

The vote took place following completion of a preliminary draft environmental impact statement (PDEIS) about the group’s plans in the Cliff-Gila Valley, on the San Francisco River and in Virden, a town in Hidalgo County near the Arizona border.

As proposed by the CAP Entity, the waters of the Gila River would be diverted, about three-and-a-half miles downstream from where the river runs out of the Gila Wilderness, via a 155-foot concrete weir wall. The project would also replace and repair existing ditches in the Cliff-Gila Valley, build storage ponds in the valley and in Winn Canyon, and create facilities for aquifer storage and recovery.

The proposal also called for storage ponds in Virden. And on the San Francisco River, the CAP Entity planned to replace existing diversions with a new weir and build an earthen embankment dam and reservoir in Weedy Canyon, west of Highway 180 between Reserve and Alma.

Altogether, along with improvements to existing ditches, the project would have cost more than $120 million to build.

Now, many of those components are off the table.

According to Jeff Riley, manager of the engineering division at the Phoenix area office of the U.S. Bureau of Reclamation, the CAP Entity’s attorney, Pete Domenici, Jr. worked up a modified alternative to fit within the budget of the federal construction subsidy, which is about $56 million.

Riley explained that the modified proposal still includes a Gila River diversion and some of the storage ponds, but will leave out Winn Canyon storage and the aquifer storage and recovery components. It also excludes the Weedy Canyon dam and storage on the San Francisco. The earlier plans for Virden remain.

“What this accomplished, was a project where all three areas”—the Cliff-Gila Valley, Virden and the San Francisco River—“still had pieces intact, but the cost would fall to about $50 million in today’s dollars,” said Riley…

To read all of our coverage of the Gila River diversion: http://nmpoliticalreport.com/tag/gila-river/.

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