<br />~
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<br />~ REVISIONS:
<br />[ REV1
<br />~ REV2
<br />;,< REV3
<br />"
<br />~ REV4
<br />~ REVS
<br />- REV6
<br />~
<br />
<br />'"
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<br />
<br />o
<br />
<br />ORIGINAL SCALE
<br />
<br />00
<br />
<br />200
<br />
<br />=200
<br />.
<br />400
<br />
<br />PROJECT NUNBERS:
<br />COFC2003-
<br />
<br />ACAO FILt:
<br />OXBOW LOMR
<br />
<br />DATE:
<br />04/11/2006
<br />
<br />(NAIN CHANNEL)
<br />HORTHERN EHGIHEERING SERVICES, INC
<br />FORT COWNS, COLORADO
<br />JUNE 2B, 2005
<br />CONTOUR INTERVAL.: I'
<br />SCALE: 1-=40'
<br />
<br />1
<br />
<br />o
<br />
<br />ORAWN BY:
<br />
<br />BAS
<br />
<br />DESIGNED BY:
<br />
<br />BAS
<br />
<br />CHECKED BY:
<br />
<br />CJP
<br />
<br />
<br />ANdERSON CONsulTiNG ENGiNEERS, INC
<br />
<br />Civil ' Water Resources . Environmental
<br />772 Whalers Way, Suite 200, Fort Collins, CO 80525
<br />Phone (970) 226-0120/ Fax (970) 226-0121
<br />
<br />NAPPING DATUNS:
<br />VERTICAL DATUN = NATIONAL GEODETIC VERTICAL DATUN OF
<br />1929 (NGVD 29).
<br />HORIZONTAL DATUN = COLORADO STATE PLANE (NAD B3)
<br />. FLOODPLAIN AND FLOODWAY UNES SHOWN IN
<br />ORDER OF PRECEDENCE
<br />.. CORPORATE UNIT AND PARCEL BOUNDARY INFORNATION
<br />WAS OBTAINED FRON THE CITY OF FORT COWNS GIS
<br />DEPAlRTNENT ON JANUARY 10, 2008.
<br />
<br />!l
<br />
<br />------
<br />
<br />8
<br />228117
<br />
<br />(0
<br />
<br />HYDRAUUC BASEUNE
<br />
<br />CROSS SECTION 10
<br />
<br />NORTHERN ENGINEERING SERVICES, INC
<br />FORT COWNS, COLORADO
<br />JANUARY 20, NAY 20, AND AUGUST 4, 2004
<br />CONTOUR INTERVAL.: I'
<br />SCALE: 1"=50'
<br />
<br />-TOPOGRAPHY
<br />(LEfT OVERBANK)
<br />DOWNLOADEO FRON CITY OF FORT COWNS
<br />GIS NAP /SYSTEN WEBSITE
<br />APRIL 1999
<br />CONTOUR INTERVAL.: 2'
<br />
<br />-AERIAL PHOTOGRAPHY
<br />DOWNLOADED FRON CITY OF FORT COWNS
<br />GIS NAP /SYSTEN WEBSITE
<br />PHOTO DATE: APRIL 1999
<br />
<br />NOTE:
<br />ZONE AH IS THE FLOOD INSURANCE RISK ZONE THAT CORRESPONDS TO
<br />AREAS OF 1-PERCENT-ANNUAL-CHANCE SHALLOW FLOODING (USUALLY
<br />AREAS OF PONDING) WHERE AVERAGE DEPTHS ARE BETWEEN 1.0 AND
<br />3.0 FEET.
<br />
<br />REVISED CONDITION INFORNATION
<br />A.) NAlN CHANNEL CROSS SECTION 228
<br />(LEfT OVERBANK)
<br />-AS-BUILT TOPOGRAPHY
<br />KING SURVEYORS, INC.
<br />JUNE 13, 2005
<br />CONTOUR INTERVAL.: l'
<br />SCALE: 1"=50'
<br />UNC OIVlDED FLOW PATH
<br />
<br />B.)
<br />
<br />-AS-BUILT TOPOGRAPHY
<br />KING SURVEYORS, INC. WINDSOR, COLORADO
<br />JUNE 13, 2005
<br />CONTOUR INTERVAL.: I'
<br />SCALE: 1"=50'
<br />
<br />WINDSOR,
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<br />CROSS SECTIONS
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<br />ANDERSON CONSULTING ENGINEERS, INC.
<br />RESPONSIBILITY LI~ITED TO fLOODPLAIN
<br />HYDRAULICS AND fLOODPLAIN
<br />DEUNEATION. SURVEY AND TOPOGRAPHIC
<br />INfOR~ATION OBTAINED fRO~ OTHERS
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<br />BASE FLOOD ELEVATION
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<br />CONTOURS NAJOR
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<br />D.)
<br />
<br />CROSS SECTIONS 229322-229757
<br />(RENOVAL ACTION LONR, 2005 (REVISED 2008))
<br />
<br />(RIGHT OVERBANK)
<br />ARIX CORPORATION GREELEY,
<br />NAY 19B4
<br />CONTOUR INTERVAL.: 2'
<br />SCALE: '-=100'
<br />
<br />(NAIN CHANNEL)
<br />NORTHERN ENGINEERING SERVICES, INC
<br />FORT COWNS, COLORADO
<br />JANUARY 20, NAY 20, AND AUGUST 4, 2004
<br />CONTOUR INTERVAL.: I'
<br />SCALE: 1"=50'
<br />
<br />-TOPOGRAPHY
<br />(LEfT OVERBANK)
<br />DOWNLOADEO FRON CITY OF FORT COWNS
<br />GIS NAP /SYSTEN WEBSITE
<br />APRIL 1999
<br />CONTOUR INTERVAL.: 2'
<br />
<br />COLORADO
<br />
<br />3.)
<br />
<br />7
<br />
<br />-EXISTING SURVEY INFORNATION (SPOT ELEVATIONS)
<br />KING SURVEYORS, INC. WINDSOR, COLORADO
<br />FEBRUARY 2, 2008
<br />
<br />FORT COWNS
<br />
<br />-TOPOGRAPHY
<br />DOWNLOADED FRON CITY OF FORT COWNS
<br />GIS NAP /SYSTEN WEBSITE
<br />APRIL 1999
<br />CONTOUR INTERVAL.: z'
<br />(NOTE: EXISTING OXBOW TOPOGRAPHY INCORPORATED
<br />'NTO PORTIONS OF THE GEONETRY DATA OF CROSS
<br />SECTIONS 10540-11700.)
<br />
<br />UNC DIVIDED FLOW PATH
<br />-AERIAL PHOTOGRAPHY
<br />DOWNLOADED FRON CITY OF
<br />GIS NAP /SYSTEN WEBSITE
<br />PHOTO DATE: APRIL 1999
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<br />F'LOOOWAY*
<br />FLOODPLAIN
<br />FLOODPLAIN
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<br />SHALLOW
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<br />r-m--III- _---l
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<br />- --
<br />
<br />C.)
<br />
<br />GENERAL
<br />
<br />)
<br />
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<br />B.)
<br />
<br />NOTES:
<br />EFfECTIVE CONDITION INFORNATION
<br />A.) CROSS SECTIONS Z22377-Z281
<br />230017, AND 230467-234557
<br />(EFFECTIVE FIS STUDY, 1998)
<br />-AERIAL PHOTOGRAPHY
<br />ARIX CORPORATION GREELEY, COLORADO
<br />PHOTO DATE: NAY 1984
<br />
<br />1- - ----- - - ----- - - -----
<br />
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<br />
<br />-AERIAL PHOTOGRAPHY
<br />DOWNLOADED FRON CITY OF FORT COWNS
<br />GIS NAP /SYSTEN WEBSITE
<br />PHOTO DATE: APRIL 1999
<br />
<br />CROSS SECTIONS 228637 " 2288B7
<br />(RENOVAL ACTION LONR, 2005 (REVISED 2006))
<br />
<br />-TOPOGRAPHY
<br />AERO-NETRIC, INC. FORT COWNS, COLORADO
<br />NOVENBER 8, 1996
<br />CONTOUR INTERVAL.: 2'
<br />SCALE: '-=200'
<br />(NOTE: 1896 TOPOGRAPHY WAS NOT USED TO
<br />UPDATE GEONETRY OF LENAY AVENUE CROSS
<br />SECTIONS, 221637 " 221702, IN HYDRAUUC
<br />NODELS, BUT WAS USED FOR FLOODPLAIN
<br />DEUNEATION.)
<br />
<br />CROSS SECTIONS 21801Z-221702
<br />(TlNBERUNE ROAD LONR, 1999)
<br />
<br />-AERIAL PHOTOGRAPHY
<br />DOWNLOADED FRON CITY OF FORT COWNS
<br />GIS NAP /SYSTEN WEBSITE
<br />PHOTO DATE: APRIL 1999
<br />
<br />-TOPOGRAPHY
<br />ARIX CORPORATION GREELEY,
<br />NAY 1984
<br />CONTOUR INTERVAL.: 2'
<br />SCALE: 1-=100'
<br />
<br />COLORADO
<br />
<br />7.
<br />
<br />229997-
<br />
<br />i
<br />i
<br />
<br />2
<br />
<br />2.)
<br />
<br />B.)
<br />
<br />EXISTING CONDITION INFORNATION
<br />A.) NAlN CHANNEL CROSS SECTIONS 227397-228
<br />(LEfT OVERBANK)
<br />
<br />E.)
<br />
<br />D.)
<br />
<br />CROSS SECTIONS 7680-
<br />
<br />-OXBOW PROJECT AREA TOPOGRAPHY
<br />KING SURVEYORS, INC. WINDSOR. COLORADO
<br />APRIL. 2004
<br />CONTOUR INTERVAL.: l'
<br />SCALE: 1"=50'
<br />
<br />-AER~ PHOTOGRAPHY
<br />DOWNLOADED FRON CITY OF FORT COWNS
<br />GIS NAP /SYSTEN WEBSITE
<br />PHOTO DATE: APRIL 1999
<br />
<br />-AS-BUILT SURVEY DATA
<br />ICON ENGINEERING, INC. ENGLEWOOD, COLORADO
<br />FEBRUARY, 2001
<br />(NOTE: THE AS-BUILT SURVEY INFORNATION WAS
<br />USED TO UPDATE THE HYDRAUUC NODELS, BUT
<br />THE 1984 FIS TOPOGRAPHY WAS USED FOR
<br />FLOODPLAIN DEUNEATION.)
<br />
<br />CROSS SECTIONS 230193 " 230355
<br />(BOAT CHUTE LONR, 2001)
<br />
<br />-AER~ PHOTOGRAPHY
<br />ARIX CORPORATION GREELEY, COLORADO
<br />PHOTO DATE: NAY 1984
<br />
<br />-TOPOGRAPHY (CONTINUED)
<br />(RIGHT OVERBANK)
<br />NORTHERN ENGINEERING SERVICES, INC
<br />FORT COWNS, COLORADO
<br />JANUARY 20, NAY 20, AND AUGUST 4, 2004
<br />CONTOUR INTERVAL.: I'
<br />SCALE: '-:::IlSO'
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