map 5 map 4 map 3 randy l & gretchen a jacobsen thomas p & joanne h a carlson richard a...

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Map 5 Map 4 Map 3 Map 2 Map 1 Left Hand Creek Restoration at 63rd Street Extension ¯ Sources: FEMA; USGS EarthExplorer Orthoimagery (2014); Boulder County Public Meeting | September 29, 2017 Boulder County parcel channel realignment bank grading stabilized toe channel structure fill low cut high cut 1 inch = 375 feet 0 375 750 Feet Map Index LEGEND

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Page 1: Map 5 Map 4 Map 3 randy l & gretchen a jacobsen thomas p & joanne h a carlson richard a & susan m winslow joseph h & engrid e left hand ditch co northern colorado water

Map 5

Map 4

Map 3Map 2Map 1

Left Hand Creek Restoration at 63rd Street Extension

¯Sources: FEMA; USGS EarthExplorer Orthoimagery (2014); Boulder County

Public Meeting | September 29, 2017Boulder County parcelchannel realignmentbank grading

stabilized toechannel structurefill

low cuthigh cut

1 inch = 375 feet

0 375 750FeetMap Index LE

GEND

Page 2: Map 5 Map 4 Map 3 randy l & gretchen a jacobsen thomas p & joanne h a carlson richard a & susan m winslow joseph h & engrid e left hand ditch co northern colorado water

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JOHNSON RANDYL & GRETCHEN A

JACOBSENTHOMAS P &JOANNE H A

CARLSONRICHARD A &

SUSAN M

WINSLOWJOSEPH H &

ENGRID E

LEFT HANDDITCH CO

NORTHERNCOLORADO WATER

CONSERVANCY DISTJOHNSON DAVID

L & WILLIAMA CARLTON

CARLSONRICHARD A &

SUSAN MLARSON

REALTY INC

HAYSTACKLIVINGTRUST

lower point bar totake stress offoutside bank

------------plant coyote willowson back of point bar

Left Hand Creek Restoration at 63rd Street Extension

¯Sources: FEMA; USGS EarthExplorer Orthoimagery (2014); Boulder County

Public Meeting | September 29, 2017 Boulder County parcellow cut1 inch = 75 feet

0 75 150FeetMap 1 LE

GEND

Page 3: Map 5 Map 4 Map 3 randy l & gretchen a jacobsen thomas p & joanne h a carlson richard a & susan m winslow joseph h & engrid e left hand ditch co northern colorado water

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HAYSTACKLIVINGTRUST

move channelaway from

cut bank------------

fill to create bankfullbench and stabilize

with boulder toe------------

plant coyote willowbehind boulder toe and

cottonwoods and nativeshrubs on back of bench

fill to create bankfull benchand stabilize with wood toe

------------plant coyote

willow behind wood toe andcottonwoods and native

shrubs on back of bench

move channel awayfrom cut bank

------------

fill to create bankfull benchand stabilize with wood toe

------------plant coyote

willow behind wood toe andcottonwoods and native

shrubs on back of bench

move channelaway from

cut bank------------

Left Hand Creek Restoration at 63rd Street Extension

¯Sources: FEMA; USGS EarthExplorer Orthoimagery (2014); Boulder County

Public Meeting | September 29, 2017 Boulder County parcelchannel realignment

fill

1 inch = 75 feet

0 75 150FeetMap 2 LE

GEND

Page 4: Map 5 Map 4 Map 3 randy l & gretchen a jacobsen thomas p & joanne h a carlson richard a & susan m winslow joseph h & engrid e left hand ditch co northern colorado water

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BACON DUANED & RUTH H

SIMPSONRAYMOND R &

KAREN K

MAGILL KIM A

AMESROSEMARY A

BRANDMIER DOUGLAS P& BARBARA G HARDING

ANDERSON CARLR & CAROL L

HENDRICKSBARD M &CHERYL D

MARLIN JAMESW & MARLENESEIFFERT ROBERT L

& ELISE C HERSEYHAYSTACKLIVINGTRUST

BRIG

ADOO

N DR

install fishhabitat; type of

structure tobe determined

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keep existingroot wad forfish habitat------------

realign channel to stop erosionon both banks; preserve

planter boxes------------

plant willow clumps along creekedge and blend native

forbs with landscaping; providecreek access

install existing boulderson south bank to helpprotect bank------------plant willow clumps alongcreek edge and nativeshrubs on bank

grade steep banks andremove large crack willow

------------plant coyote willow along

creek and cottonwoodsand native shrubs on bank

removeabutmentremnants------------

install boulder toe and fillscour area

------------plant coyote willow behind

boulder toe and cottonwoodsand native shrubs on bank

install boulderplunge pool to

dissipate energy------------

install bouldertoe and grade bank

------------plant coyote willow behind

boulder toe and cottonwoodsand native shrubs on bank

realign channel awayfrom south bank and

install boulder toe------------

plant coyote willowbehind boulder toe and

cottonwoods on bank

preserve existingnative vegetation

on left bank------------

Left Hand Creek Restoration at 63rd Street Extension

¯Sources: FEMA; USGS EarthExplorer Orthoimagery (2014); Boulder County

Public Meeting | September 29, 2017Boulder County parcelchannel realignmentstabilized toe

channel structurefill

1 inch = 75 feet

0 75 150FeetMap 3 LE

GEND

Page 5: Map 5 Map 4 Map 3 randy l & gretchen a jacobsen thomas p & joanne h a carlson richard a & susan m winslow joseph h & engrid e left hand ditch co northern colorado water

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BRIGADOON CT

BRIGADOON DR

HEATHER WAY

STRA

TH ST

OPPERMANNCHARLES F III& HILARY M E

SILVER HANNAHF & ROBERT J

DAGEENAKISLINDA ANN &

ANTHONY JOHN

DUNCAN JOHN D

SUTPHIN STEPHENW & ROXANNE K

RICHARDSONALLEN R &NORMA L

BARBER JULIENON-EXEMPT MARITAL

TRUST ET AL

SANDS HERBERTCLARK IV &

ALLYSON LEE

FOSTER TIMOTHYD & KRISTY ANN

MARCUEWILLIAM D

MARCUEWILLIAM D

KADLEC RONALDJ & NANCY B

LAHNANENJAMES H

MOORE PETERJ & ROCHELLE

WIRTH RONALDO & DEBORAH V

install boulder toe and gradebanks------------plant coyote willow alongboulder toe and cottonwoodsand shrubs on bank

grade area to tieinto existinghigh flow bench------------plant native forbs

grade bankfor Left HandDitch access;stabilizewith rock------------

installboulder toe------------

realign channel to createbetter culvert approach;remove N. bank crackwillows -- avoid cottonwoods------------plant coyote willow behindboulder toe and cottonwoodsand shrubs on bank;provide creek access

boulder toe toreplace failing

rock wall------------

install large cobbleto stop erosionon south bank------------

realign channel to stoperosion on north bank------------plant willow clumps onsouth channel and blendnative forbs with lawn

lower bank to create high flowarea and remove large crackwillow------------plant coyote willow along channeland cottonwoods and native shrubson bank; provide creek access

Left Hand Creek Restoration at 63rd Street Extension

¯Sources: FEMA; USGS EarthExplorer Orthoimagery (2014); Boulder County

Public Meeting | September 29, 2017Boulder County parcelchannel realignmentbank grading

stabilized toechannel structurelow cut1 inch = 75 feet

0 75 150FeetMap 4 LE

GEND

Page 6: Map 5 Map 4 Map 3 randy l & gretchen a jacobsen thomas p & joanne h a carlson richard a & susan m winslow joseph h & engrid e left hand ditch co northern colorado water

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SILVER HANNAHF & ROBERT J

MURPHY ELIZABETHC & JESS M MURPHY

SUTPHINSTEPHEN W &ROXANNE K

BARRETTKURRIN K &

GISELA

BRADY LLOYDS & KAREN P

SCHONE RODNEYA & MARGARET A

SCHONE RODNEYA & MARGARET A

SCHONE RODNEYA & MARGARET A

SCHONE RODNEYA & MARGARET A

SCHONE RODNEYA & MARGARET A

DYER SALLY M& PATRICK D

GERSHMANMARK D

GERSHMANMARK D

GUARASCIODEREK ET AL

63RD

ST

lower high bank andremove largecrack willow------------plant cottonwoodsand native shrubs

replace existingboulder structure

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grade bank to repairerosion and adjust

channel as necessary------------

plant willowclumps on bank to allowcreek access and blend

native forbs into lawn

lower bank to createhigh flow bench------------plant coyote willowon bank; plant cottonwoodand native shrubs on bench

grade bank to repairerosion and adjustchannel as necessary------------plant coyote willowand cottonwood on bank

lower high bank andremove largecrack willow

------------plant native shrub clumps

to allow creek access

lower high bankbut do not removecottonwoods------------plant cottonwoodsand native shrubs

lower bank to create highflow bench and remove

large crack willow------------

plant coyote willow onbank and cottonwoods

and shrubs on bench

fill overwide channelnext to boulder

wall to create betterchannel cross section

------------plant coyote willows

Left Hand Creek Restoration at 63rd Street Extension

¯Sources: FEMA; USGS EarthExplorer Orthoimagery (2014); Boulder County

Public Meeting | September 29, 2017Boulder County parcelbank gradingchannel structure

filllow cuthigh cut1 inch = 75 feet

0 75 150FeetMap 5 LE

GEND