Record Details

page 1-9

Digital Collections at BYU

Field Value
Title page 1-9 Final Environmental Assessment for the Diamond Fork System Proposed Action Modifications, page 1-9
Coverage Electronic reproduction;
Format 1-9 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; permanent access roads would be crowned with 2 percent slopes to either side to disperse drainage additional rock riprap would be incorporated as necessary into the ditches to control erosion A 1 1150 150 foot section of the diamond fork road adjacent to a steep hillside and the natural spring area would be reconstructed over the top of the diamond fork pipeline extension see insets 6 and 7 map al A l 1 it would incorporate special drainage features including a reinforced earth segmental concrete retaining wall constructed of tinted and textured concrete to blend with surrounding landscape the creek a riparian vegetation band and a small wetland are adjacent to the existing road the road surface would be raised up to 13 feet to keep the pipeline above the springs and the wetland all applicable conditions of the nationwide permit 14 would be followed A drainage collection system including a french drain would be installed under the roadfill road fill to collect and convey the spring water under the pipeline and road to the wetland and riparian areas the retaining wall would keep the elevated roadfill road fill from encroaching on the wetland and riparian area cottonwood trees would be planted in a scattered pattern at the base of the retaining wall to enhance the riparian buffer and screen the retaining wall diamond fork road would be relocated and realigned to follow the pipeline alignment for about 800 feet in the area north of where red hollow joins diamond fork creek see inset 6 map al A l 1 the new diamond fork road alignment would replace about 1400 feet of old road which would be ripped up topsoiled top soiled and re vegetated the relocated road would be upgraded to 24 feet wide with a paved surface the crossing area of the pipeline extension with the red hollow road would become the new intersection of the red hollow monks hollow and diamond fork roads see inset 6 map al A l 1 A portion of the existing red hollow road south of its intersection the relocated diamond fork road would become the monks hollow road extension the district would reconstruct a 30 foot long segment of the monks hollow road extension to include a 16 foot wide road with a ramp at no more than 2 percent slope from the intersection to provide for vehicle egress and ingress the ramp would be constructed at a right angle to the centerline of the relocated diamond fork road and the monks hollow road extension would be paved from the new intersection down to the monks hollow bridge the red hollow road intersection would be slightly cut re graded and aligned realigned re at a right angle to the centerline of the relocated diamond fork road across from the monks hollow road intersection A short pavement apron would extend onto the aligned realigned re red hollow road upon completion of the waste disposal area the portion of diamond fork road covered by the waste disposal area would be reconstructed to the same standards as the road that was reconstructed when diamond fork pipeline was completed ie 24 feet wide with a paved surface the surface and grade of diamond fork road would be reconstructed from the end of the existing diamond fork pipeline to the east end of the waste disposal area see map al A l 1 and meet the same standards as the road improvements made during construction of the diamond fork pipeline diamond fork road would be temporarily closed to the public from the red ledges area downstream from monks hollow to just downstream of three forks during the 312 31 year yea construction period see map al A l 1 the temporary closure would eliminate the public safety risk from heavy two way construction traffic along this narrow section of road and would be coordinated by the contractor the red ledges turnaround turn around would be either graveled or hardened to facilitate a safe and all weather turnaround turn around for the public access to the sixth water features would be the same as described in chapter 1 section 13.6 136 136 page 132 1 32 of the FSFEIS FS FEIS CUWCD 1999a access to all the other features would be via the recently improved section of diamond fork road from highway 6 19 1 9 diamond fork propos proposed ed action modifications EA
Identifier http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/6597

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