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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />OIH1853. <br /> <br /> <br />wildlife species and shall have such measures as bird and small rodent escape <br />ladders to prevent drowning of these animals in the water structures, <br />(5) Access by the public to the uplands mitigation area will be limited to non- <br />motorized traffic onl y. <br />ii) Wetlands - The 134 acres of wetland/riparian habitat that will be lost at Ridges <br />Basin Dam and Reservoir and lower Basin Creek will be mitigated by protection, <br />enhancement and restoration of (approximately) 200+ acres of wetland/riparian <br />habitat which is located within the La Plata River drainage, A detailed description <br />of the wetland/riparian mitigation and monitoring plan including the reporting <br />requirements are provided in Attachment B. <br />(1) La Plata River Mitigation Area: <br />(a) Protection of riparian reaches currently bordered by riparian vegetation <br />dominated by tree and shrub communities that support diverse fish and <br />wildlife habitat will entail the preservation of existing habitat values. In <br />comparison, restoration and enhancement areas will require much greater <br />management in order to achieve the habitat values presently supported by the <br />preservation reaches. , <br />(b) Enhancement mitigation actions will occur along river reaches where the <br />stream channel and floodplain will not require reconstruction. Typically, these <br />reaches have stream channels and wetland/riparian vegetation that have been <br />degraded by various land management practices, but have the potential to be <br />rehabilitated without the need of extensive earthmoving, Enhancement <br />measures in this areas will consist of: <br />(i) The removal of livestock grazing from the wetland/riparian habitat along <br />the La Plata River. <br />(ii) The control and management of noxious weeds. <br />(iii)The introduction of desirable vegetation by replanting native and desirable <br />woody and herbaceous species in both restoration and weed control areas, <br />(iv)The control of erosion of denuded streambanks, which will serve to restore <br />riparian functions related to stream energy dissipation, sediment <br />deposition and water quality, <br />(c) Restoration will entail a holistic ecosystem approach to rehabilitate river <br />reaches that are in a straightened or braided condition. Typically, the river <br />channels within these disturbed reaches have very little streambank vegetation <br />and are predominantly riffles with few pools. This restoration will require <br />floodplain and stream channel reconstruction within the river's <br />zone-of-influence at a specific reach, <br />(i) Reconstructed stream channels will have the proper profile, dimension, <br />and pattern to fit the geomorphology of a given section of river valley, <br />(ii) Typically, channel reconstruction will entail the re-establishment of a <br />meandering, self-sustaining stream channel that supports an improved <br />ratio of pools and riffles. <br />(iii)The channel will be integrated into a floodplain that will be naturally <br />flooded on a relatively frequent basis (approximately every 1.5 years), <br /> <br />14 <br />