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<br />, <br />\ <br /> <br />Reach 4 - Island Ditch Diversion to End of Dikes <br />Reach 5 - End of Dikes to Probst Diversion Dam <br />Reach 6 - Probst Diversion Dam 10 River Road <br />Reach 7 - River Road to Baum Diversion <br />Reach 8 - Baum Diversion to Valeo Diversion <br />Reach 9 - Valeo Diversion to Old US 40 <br /> <br />The current character of the river is primarily the result of man's influences during the past 100 years. These <br />influences are associated with the following activities: <br /> <br />, Transbasin diversions to the Provo River watershed from the Weber River and Duschene River basins (imported <br />water greatly increases the flow and erosion potential in the river during high runoff and flood periods) <br /> <br />, Channelization. dredging and construction of dikes along the majority of the study reach to control flooding and <br />channel migration (the straightened and confined channel has little habitat diversity, and the bottom has <br />downcut significantly due to erosion) <br /> <br />, Construction of hard sills or darns at points of irrigation diversions (these cause the channel to widen upstream <br />and downcut immediately downstream) <br /> <br />, Diversion of channel flows to satisfy irrigation water rights (these diversions completely dewater portions of <br />the channel during pans of the year) <br /> <br />, Clearing and filling of abandoned floodplain areas for agriculture and grazing <br /> <br />The purposes of the PRRP are listed below: <br /> <br />, To return the Provo River to a naturally functioning state, wherein long-term equilibrium and stability would <br />be self-sustaining <br /> <br />, To help mitigate the environmental impacts of Jordanelle Reservoir and the Strawberry Aqueduct and <br />Collection System as identified by the U.S. Bureau of Reclamation (USBR) in the 1979 Bonneville Unit <br />Municipal and Industrial System EIS. the 1987 Supplement to the Final EIS (USBR 1987). and the 1988 <br />Aquatic Mitigation Plan (USBR 1988) <br /> <br />, To help mitigate the effects of the USBR Provo River Project, which channelized and diked extensive reaches <br />of the Provo River and altered the hydrology of the river system, affecting environmental resources of the <br />Provo River Corridor <br /> <br />, To maximize the fish and other aquatic resource habitat potential of the Provo River corridor <br /> <br />. To maximize the diversity of-benefits and full potential of the Provo River corridor, including the enhancement <br />of wetlands and riparian habitat <br /> <br />, To accommodate the needs and concerns oflocal property owners and residents <br /> <br />, To accommodate a growing. state-wide demand for stream-related recreation opportunities <br /> <br />PRRP ALTERNATIVES <br /> <br />Three alternatives were identified for the PRRP: <br /> <br />Instream Structures Alternative - Fish habitat enhancement structures would be installed at selected locations <br />throughout the study area to improve fishery conditions. Habitat enhancement structures include features such as <br />cover logs, rock placements, root wads, depositional structures. "organic riprap" treatments, etc. No changes would <br />be made to existing channel geometry or elevations. <br /> <br />2 <br />