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1 It) <0 -:t o ....J W Z <( a.. (/) z <5 J Colorado National Monument AREA NOT INCLUDED ~ ZONEX ZONE X ~ JOINS PANEL 0460 ~ ~ ZONE X JOINS PANEL0650 City of Grand Junction AREA NOT INCLUDED ZONEX ZONE X ) / LEGEND SPECIAL FLOOD HAZARD AREAS INUNDATED BY 100-YEAR FLOOD ZONE A No base flood elevations determ'ined. ZONE AE Base flood elevations determined. ZONE AH Flood depths of 1 to 3 feet (usually areas of ponding); base flood elevations determined. ZONE AO Flood depths of 1 to 3 feet (usually sheet flow on sloping terrain); average depths determined. For areas of alluvial fan flood, ing, velocities also determined. ZONE A99 To be protected from lOO-year flood by Federal flood protection system under construction; no base elevations determined. ZONE V Coastal flood with velocity hazard (wave action); no base flood elevations deter- mined. ZONE VE Coastal flood with velocity hazard (wave action); base flood elevations determined, FLOODWAY AREAS IN ZONE AE OTHER FLOOD AREAS ZONE X Areas of SOO-year floO'd; areas of lOa-year flood with average depths of less than 1 foot or with drainage areas less than 1 square mile; and areas protected by levees from 100- year flood. OTHER AREAS ZONE X Areas determined to be outside 500- year flO'od plain. ZONE D Areas in which flood hazard5 are u ndeterm ined. FloO'd Boundary FlO'odway Boundary Zone D BO'undary BO'undary Dividing Special Flood Hazard Zones, and Boundary Dividing Areas O'f Different CO'astal Base FIO'od Elevations Within Special FlO'od Hazard Zones. 513 ~ Base Flood ElevatiO'n Line; Ele- vation in Feet* Cross Section Line (EL 987) Base Flood Elevation in Feet Where Uniform Within ZO'ne* RM7X ElevatiO'n Reference Mark *Referenced to' the National GeO'detic Vertical Datum of 1929 NOTES This map is far use in administering the Natianal Flaad Insurance Pragram; it daes nat necessarily identify all areas subject to flaading. particularly fram lacal drainage saurces af small size, or all planimetric features autside Special Fload Hazard Areas, Areas af special flaad hazard (lOO'year flaad) include Zanes A. AI-30, AE, AH. AO. A99, V. VI,30 AND VE, Certain areas nat in SpeCial Flaod Hazard Areas may be pratected-by f1aad contrO'l structures, Baundaries af the flaadways were camputed at crass sectians and interpalated between crass sectians, The floadways were based on hydraulic consideratians with regard to' requirements af the Federal Emergency Management Agency, Floodway widths in some areas may be too narrow to show to scale Floodwav widths are provided in the Fload I nsurance Study Report Coastal base flaad elevatians apply only landward af the shareline. Elevations reference marks are described in the Fload Insurance StUdy Report, For adjoining map panels see separately printed Map Index MAP REPOSITORY Department of Public Works 750 Main Street Grand Junction, Colorado 81501 (Maps available for reference only, not for distribution,) INITIAL IDENTIFICATION: OCTOBER 18, 1974 FLOOD HAZARD BOUNDARY MAP REVISIONS: FLOOD INSURANCE RATE MAP EFFECTIVE: JULY 3, 1978 FLOOD INSURANCE RATE MAP REVISIONS: Map revised JULY 15, 1992 to update corporate limits, to decrease base flood elevations, to add base flood elevations, to add special flood hazard areas, to update map format, to add roads and road names and to reflect updated topographic information, T a determine if flO'od insu ranee is available, cO'ntact an insurance agent or call the National FlO'od Insurance Program at (800) 638-6620. . APPROXiMATE SCALE iN FEET NATIONAL FLOOD INSURANCE PROGRAM I FLOOD INSURANCE RATE MAP MESA COUNTY, COLORADO (UNINCORPORATED AREAS) PANEL 1000 (SEE MAP INDEX FOR PANELS NOT PRINTED) PANEL LOCATION 15 B REVISED: 15, 1