Record Details
page 3-9
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page 3-9 Final Environmental Assessment for the Diamond Fork System Proposed Action Modifications, page 3-9 |
| Coverage | Electronic reproduction; |
| Format | 3-9 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; RESPONSE 3.9 39 39 the area along the creek currently receives the most use as people prefer to camp near the creek As pointed out in the comment once this area becomes becomesfull full the users move up on the slope closer to the road the area along the creek is already currently overused over used in our opinion the use of the area upon completion and establishment of vegetation would continue much as it has in the past tiie theareaalong area along the creek would continue to receive the most use as it has lias in rhe the tliepast past with the use spilling onto the reclaimed area sufficient access to the creekfrom creek arom from the waste disposal area would continue to be available at the ends of oatlie oftlie the disposal area and along the fie tie bottom except at its very center where it would beatitshighest be at its ets liighest the waste disposal area would wouldoccupy occupy only a smallportion small portion odthe area currently used for dispersed camping for these reasons the joint leada lead agencies encies enches do not agree that any dispersed camping opportunities available under baseline conditions would be lost COMMENT 3.10 310 310 diamond fork creek outlet the proposed action calls for construction of an energy enero disipation dissipation disi pation structure and riprapped rip rapped channel at diamond fork creek insert 5 on map AI al also shows a riprap grade control structure to protect these features the grade control structure could potentially create a partial dam impeding upon the diamond fork creek floodplain flood plain this may result in a very undesirable constraint to or blockage of high flows in diamond fork creek and is a serious concern to us and any such constraints on diamond fork creeks flows must be avoided RESPONSE 3.10 310 310 the tiie tite district apologizes apologizesfor for tor any confusion caused by an accidental shift of one color layer on map al A l the rock riprap grade control structure would not extend into diamond fork creek as shown on inset 5 map al A l 1 As described in chapter 1 section 152.6 1526 1526 in the draft EA the grade control structure would be constructed diagonally between the energy dissipation structure and diamond fork creek the tiie grade control would be constructed with its top elevation matching the tiie existingfloodplain existing floodplain flood plain elevation and it would not change anyflow any flow characteristics of oatlie oftlie floodplain thefloodplain flood plain other alian tlian than rhan preventing floodplain flood plain scour and re channelization immediately downstream of oatlie oftlie the grade control during a flood aflood event exceeding the 100 loo yearflood year flood the south end of the grade control would terminate at the tlle tile existing streambank stream bank the purpose of oatlie oftlie the grade control would be to maintain the existingfloodplain existing floodplain flood plain grade which would wouldprotect protect the energy dissipation structure and outlet channel the tiie tie grade control would not create a partial fam dam lam fam blockage or other constraint on diamond fork creekflows creek flows A revised description of ottlie the grade control is included in chapter diopter 1 section 152.6 1526 1526 in the tiie final EA and map al A l 1 has lias been reprinted with all color layers registered to the same points COMMENT 3.11 311 311 monks hollow tunnel portal access road insert 5 on map al A l 1 indicates multiple corridors would be cut through the existingjuniper existing juniper vegetation between the diamond fork road and the portal site the environmental commitments section of the EA describes mitigation for visuals including planting trees and shrubs even with the mitigation identified here the area will never meet the established visual quality objective nevertheless this is part of a sensitive viewshed view shed and therefore it is important we do everything reasonable to mitigate these impacts one measure would be to locate the two pipeline corridors and access road on the same alignment to the maximum extent feasible the width of the corridor could be further reduced by locating the road over the pipelines and end filling the ditch ie thereby eliminating a need for additional clearing for stockpiling trench fill material in addition it may be possible to construct a partial bench road this may require some retaining walls instead of a full bench road in this critical section the road could also be narrowed from two 12 foot lanes with a 2 foot shoulder to two 10 feet lanes with no shoulders the road modifications we are suggesting are similar to what was described for the red hollow road in the final supplement to the FEIS we realize the pipelines will diverge at the diamond fork road if grades on the portal access road would be excessively steep the road could diverge from the pipeline on the lower hillside where it would be 39 3 9 diamond fork proposed action modifications EA |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/3311 |
