Slowing Water & Saving Water in the Borderlands Development and - - PowerPoint PPT Presentation

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Nov 24, 2022 25 likes •216 views

Slowing Water & Saving Water in the Borderlands Development and Testing of Rock Structures on Rangeland Richard Winkler The Malpai Borderlands Group Our goal is to restore and maintain the natural processes that create and protect

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Slowing Water & Saving Water in the Borderlands

Development and Testing of Rock Structures on Rangeland Richard Winkler

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The Malpai Borderlands Group

“Our goal is to restore and maintain the natural processes that create

and protect a healthy, unfragmented landscape to support a diverse, flourishing community of human, plant and animal life in our Borderlands region. Together, we will accomplish this by working to encourage profitable ranching and other traditional livelihood which will sustain the open space nature of our land for generations to come.”

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Where we live and work

1 million acres

59% Private
23% NM/AZ State
11% National Forest
7% BLM

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Watershed

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C.C.C. Rock Structures 1930’s

Gradual Slope Flat Rock Design

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Goals and Designing Rock Structures

Slow water and increase infiltration rates of ephemeral streams
Slow rates of erosion along streambeds and catch sediment
Create areas for perennial grasses to begin growing
Slow water in areas after a fire
Identify areas where structures are most effective
Monitor sites to measure effectiveness

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Rock Structure Work

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Assessing Possible Locations for Rock Structures

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Managing Erosional Effects of Fire

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Peterson Ranch, Hay Hollow 3 26 04 3 25 05

Rock rundowns and wicker weirs with a cobble splash apron controlled the headcut and triggered the vegetation. The splash apron was partially scoured away.

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A cobble channel liner stopped a head cut from drying out this swale of grass.

McDonald Ranch, Thomas Tank 3 26 04 3 25 05

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Glenn Ranch, Red Windmill Draw 3 27 04 3 25 05

The first “Media Luna.”

Flow direction

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Lessons Learned

*Rock Structures can be a management tool to enhance rangeland *Rock Structures can be used in conjunction with fire *Infiltration rates are increased and erosion rates are decreased as a result of properly constructed structures *The use of available materials is important when considering design features and locations *Labor costs are the largest and obstacle when building structures

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