Record Details
page 1-55
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page 1-55 Final environmental impact statement on the Provo River Restoration Project, page 1-55 |
| Coverage | Electronic reproduction; |
| Format | 1-55 text/PDF |
| Rights | Brigham Young University; http://lib.byu.edu/about/copyright/generic.php Public Domain Public |
| Language | English; eng; en |
| Relation | Central Utah Project; Western Waters Digital Library; reach 4 is a unique section because there are no existing dikes in this section the existing channel would be stabilized in some areas to promote a single thread channel floodplain Flood plain flows would be unrestricted in reach 4 within the existing flood easement A 65 foot wide channel section would be essential to maintain sediment transport conditions consistent with upstream and downstream reaches A fixed channel alignment would be developed under this alternative the fee title acquisition under baseline conditions would be more than adequate to contain all channel improvements needed under this alternative within reach 4 the baseline floodplain flood plain and fee title corridor width would range from 600 to 1000 feet and be contained entirely within the existing federal government flood easements channel design in reach 4 would utilize the existing active channel features as much as possible changes in proposed alignment and profile would be necessary during final design to maximize utilization of active channel features because the channel is expected to continue to shift in the future as it adjusts to changed upstream conditions under this alternative it would not be adequate to just allow reach 4 to adjust itself as with the proposed action because of the higher stream flow velocities and sediment loads under this alternative and the narrower floodplain flood plain width that would be acquired reach 9 typically would incorporate a wider channel cross section 80 foot top width in rif fles 100 foot top width in pools to reduce the scour potential of the sediment free or hungry water releases from jordanelle Jor danelle reservoir 16.2 162 162 floodplain Flood plain features where a rapid pool channel cannot be constructed within the confines of the existing dikes the dikes either would be removed and sub excavated to develop the required 100 year flood capacity or low relief setback dikes would be constructed setback dikes would have a typical height of 2 to 4 feet and a top width of 15 to 30 feet as shown in figure 16 1 6 in section 1.5 15 15 wider top widths would not be used for this alternative because the setback dikes would be located near the river channel rather than in pastures or other agricultural lands every effort would be made to minimize disturbance of significant riparian habitat where existing dikes would be removed and setback dikes would be constructed 1 in limited locations where dikes would be relocated outward from the channel as part of the existing channel modification alternative the existing under baseline conditions public access corridor would be expanded so it would incorporate the new dike this would occur in reaches 2 and 3 the core area corridor would serve as a major portion of the construction easement during construction of the existing channel modification alternative features the core area would be fenced upon completion as described in section 14.2 142 142 under baseline conditions minor construction easements would be required in addition to the core area existing federal flood and construction easements along the river channel would be converted to fee title acquisition under baseline where the channel is immediately adjacent to a steep hillside eg the lower portion of reach 7 the construction easement would consist of 100 feet on the valley side of the channel fencing requirements for newly acquired public lands would be the same as described in section 152.6 1526 1526 map A 4 in the map pocket at the back of the EIS shows proposed acquisition areas for the existing channel modification alternative 16.3 163 163 changes in ownership and land use 163.1 1631 land ownership this alternative would require fee title acquisition of 7.6 76 76 acres in addition to baseline construction easements would be required on 14.1 141 141 acres of private property 1 1632 632 63.2 632 633 land use construction vehicles and equipment would use temporary access roads to move from existing public roads to construction areas throughout the project area the majority of these roads would be situated along the existing and proposed channel alignments or along the existing dikes and would become part of the area acquired for the core area land uses of all types would be temporarily restricted on access roads during construction less than one acre of existing lands outside the core area would be needed for construction access roads existing and planned land uses could resume after construction on access roads not in the acquired core area the project area would be fenced to exclude livestock from natural resource areas and to protect |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/7966 |
