WSP11214

• File Number: 8200.776
• Description: Uncompahgre River General
• State: CO
• Basin: Gunnison
• Water Division: 4
• Date: 1/1/1983
• Author: West Slope Hydro Par
• Title: Before the United States of America Federal Energy Regulatory Commission - Application for License for Major Project - Uncompahgre Valley Hydroelectric Project Number 2
• Water Supply Pro - Doc Type: Report/Study

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OJ:102

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and wild rose,

occur along river bottom lands,

irrigation

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ditches, and drains, or in areas where irrigation water col-

lects.

Tree-dominated wetlands consist primarilY of cotton-

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wood groves located along waterways accompanied by an under-

story of shurbs, Corbs, and grasses.

Narrow-leafed emergent

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wetlands

include salt grass,

juncus,

and carex found in

association with irrigation canals and laterals

and seep

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areas.

Broad-leafed emergent wetlands include

cattails,

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bulrush, and phragmites and are associated with standing
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water from river systems or from irrigation practices.

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A wetlands inventory conducted for the Lower Gunn~son Basin

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Unit investigation identified about 22,000 acres of wetlands

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within

the study area ranging in size from less than 1 acre

to 860

acres.

Tree-dominated wetlands are most common fol-

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lowed

by narrow-leafed emergent,

shrub-dominated, and then

broad-leafed emergent wetlands.

Wetlands in the study area

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result from natural water sources,
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management practices.

canals,

and irrigation

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Natural wetlands are primarily supported by the Gunnison and

Uncompahgre Rivers and their tributaries in the study area.

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Irrigation management wetlands are supported by,water from

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primary laterals,

on-farm ditches,

field runoff,

and open

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E-16

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