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<br />ELEVATION RE
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<br />ENCE MARKS
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<br />ZONE X
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<br />ZONE X
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<br />City of Grand Junction
<br />AREA NOT INCLUDED
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<br />ZONE X
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<br />ZONE X
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<br />DESCRIPTION OF LOCATION
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<br />REFERENCE ELEVATION
<br />MARK (FT.NGVD)
<br />RM27 4583 .51
<br />RM28 4586.39
<br />RM29 4606.69
<br />RM30 4611.88
<br />RM31 4628.06
<br />RM45 4587.36
<br />RM46 4584.27
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<br />Top of guardrail at northeast corner of 32 Road brid~e over
<br />C<;>lorado River, south of Clifton; U,S, Bureau of Reclamation,
<br />
<br />Section % corner 19 - 20, T, 1 S" R. 1 E, Mesa County brass cap,
<br />Intersection of Roads 29 and C1;2 Road,
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<br />Located 80' north of river edge and 10' west of fence line at end of
<br />29 Road. Pipe cap flush with ground, Section 19, T, 1 N" R. 1 E.
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<br />A O,625-inch rebar set in ground, 10 feet north of c-1;2 Road and
<br />250 feet east of 28 Road, east of Grand Junction; U,S, Bureau of
<br />Reclamation,
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<br />A O,625-inch rebar set in ground, 275 feet south of C-1I2 Road and
<br />10 feet east of 29 Road, east of Grand Junction; U,S, Bureau of
<br />Reclamation,
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<br />A O,625-inch rebar set in ground, 15 feet west of 30 ROad and
<br />2400 feet south of intersection of 30 and D Roads, east of Grand
<br />Junction; U,S, Bureau of Reclamation,
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<br />A O,625-inch rebar, approximately 10 feet from bank of Colorado
<br />River; U,S, Bureau of Reclamation
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<br />LIMIT o~ '
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<br />DENVER & RIO GRANDE WESTERN
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<br />JOINS PANEL 0675
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<br />SPECIAL FLOOD HAZARD AREAS INUNDATED
<br />BY 100-YEAR FLOOD
<br />ZONE A No base flood elevations determined.
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<br />ZONE AE Base flood elevations determined.
<br />
<br />ZONE AH Flood depths of 1 to 3 feet (usually areas of
<br />ponding); base flood elevations determ ined.
<br />
<br />ZONE AO Flood depths of 1 to 3 feet (usually sheet
<br />flow on sloping terrain); average depths
<br />determined. For areas of alluvial fan flood-
<br />ing, velocities also determined.
<br />
<br />ZONE A9S To be protected from 100-year flood by
<br />Federal flood protection system under
<br />construction; no base elevations determined.
<br />
<br />ZONE V Coastal flood with velocity hazard (wave
<br />action); no base flood elevations deter-
<br />mined.
<br />
<br />ZONE VE Coastal flood with velocity hazard (wave
<br />action); base flood elevations determined,
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<br />
<br />FLOODWAY AREAS IN ZONE AE
<br />
<br />OTHER FLOOD AREAS
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<br />ZONE X Areas of 500-year flood; areas of
<br />100-year flood with average depths
<br />of less than 1 foot or with drainage
<br />areas less than 1 square mile; and
<br />areas protected by levees from 100-
<br />year flood.
<br />
<br />OTHER AREAS
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<br />ZONE X Areas determined to be outside 500-
<br />year flood plain.
<br />
<br />ZONE 0 Areas in which flood hazards are
<br />u ndeterm ined.
<br />
<br />
<br />Flood Boundary
<br />
<br />Floodway Boundary
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<br />Zone D Boundary
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<br />Boundary Dividing Special Flood
<br />Hazard Zones, and Boundary
<br />Dividing Areas of Different
<br />Coastal Base Flood Elevations
<br />Within Special Flood Hazard
<br />Zones.
<br />
<br />
<br />513
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<br />@-----@
<br />
<br />Base Flood Elevation Line; Ele-
<br />vation in Feet*
<br />
<br />Cross Section Line
<br />
<br />(EL 987)
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<br />Base Flood Elevation in Feet
<br />Where Uniform Within Zone*
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<br />RM7X
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<br />Elevation Reference Mark
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<br />*Referenced to the National Geodetic Vertical Datum of 1929
<br />
<br />NOTES
<br />
<br />This map is for use in administering the National Flood Insurance
<br />Program; it does not necessarily identify all areas subject to flooding,
<br />particularly from local drainage sources of small size, or all planimetric
<br />features outside Special Floorl Hazard Areas,
<br />
<br />Areas of special flood hazard (lOO'year flood) include Zones A, Al,30,
<br />AE, AH, AO, A99, V, Vl,30 AND VE,
<br />
<br />Certain areas not in Special Flood Hazard Areas may be protected~by
<br />flood control structures,
<br />
<br />Boundaries of the floodways were computed at cross sections and
<br />Interpolated between cross sections, The flood ways were based on
<br />hydraulic considerations with regard to requirements of the Federal
<br />Emergency Management Agency
<br />
<br />Floodway widths in some areas may be too narrow to show to scale,
<br />Floodway widths are provided in the Flood Insurance Study Report,
<br />
<br />Coastal base flood elevations apply only landward of the shoreline.
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<br />For adjoining map panels see separately printed Map Index
<br />
<br />MAP REPOSITORY
<br />Department of Public Works
<br />750 Main Street
<br />Grand Junction, Colorado 81501
<br />(Maps available for reference only, not for distribution)
<br />
<br />INITIAL IDENTIFICATION:
<br />OCTOBER 18, 1974
<br />
<br />FLOOD HAZARD BOUNDARY MAP REVISIONS:
<br />
<br />FLOOD INSURANCE RATE MAP EFFECTIVE:
<br />JULY31978
<br />
<br />FLOOD INSURANCE RATE MAP REVISIONS:
<br />
<br />Map revised December 4,1985 to change flood plain boundaries. zone
<br />designations, base flood elevations, corporate limits,scale, cultutal
<br />features, or map format.
<br />
<br />Map revised JULY 15, 1992 to update corporate limits, to decrease
<br />base flood elevations, to add base flood elevations, to add special flood
<br />hazard areas, to update map format, to add roads and road names and to
<br />reflect updated topographic information.
<br />
<br />To determine if flood insu rance is available, contact an insu ranee
<br />agent or call the National Flood Insurance Program at (800)
<br />638-6620.
<br />
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<br />
<br />APPROXIMATE SCALE IN FEET
<br />
<br />. NATIONAL FLOOD INSURANCE PROGRAM
<br />
<br />I
<br />FLOOD INSURANCE
<br />
<br />MAP
<br />
<br />M SA COUNTY~
<br />COLORADO
<br />(UNINCORPORATEI) AR S)
<br />
<br />
<br />490 OF 1000
<br />
<br />(SEE MAP INDEX FOR PANELS NOT PRINTED)
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<br />PANEL LOCATION
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<br />080115 0490 C
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<br />MAP
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<br />1 1
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<br />Federal
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<br />Managemen t
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