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I ...---, ."10 j . /)/ /'/' j,,'f'R';2b/\" I \---~/- i ( .---~.....~.," l" ".. i ' \ 38"07'30' r \.Izo ~ (4S~~;' us... ..... mif" .m......:;,j ';,'.!=. ,.' -"I.m(2t\- ;"/? ~ r- --/" /\ '- -,- ;;:~3' '" ~,i " ""124 r:' 1:9 , "", 20 ........... _:/ ""j I 104015,1 ~ -- ~1 SG8 2370000 FEET I "569' 12'30. 570 (FLYING A RANCHI ) ~72 R.61W. 10' R60W. ~74 ;j ....TI........<>fo.OGoC.,...,..~ty..............'''()OOoo: "6011 sw ~76DOO"' E. L I I I [~ II II 11 7 '.0 1 , I, " l~>~' .~ ~A" ... , <\^ I . 4224 6 .' :. ( \ \. '\ .4.123 . .,~i, '~'., 4223 "1 4222 +"1' + Approximate boundaries of flood-prone areas are shown on this map. There is, on the average, about 1 chance in 100 that the designated areas will be inundated in any year. This information is important to public agencies and private citizens concerned with future land developments, The flood-prone areas have been delineated through use of readily available information on past floods rather than from detailed field surveys and inspections. In general, the delineated areas are for natural conditions and do not take into consideratiori the possible effects of existing or proposed flood control structures except where those effects could be evaluated. Flood areas have been iden- tified tor: (1) urban areas where the upstream drainage basin exceeds 25 square miles, (2) rural areas in humid regions where the upstream drainage basin exceeds 100 square miles, (3) rural areas in semiarid regions where the upstream drainage basin exceeds 250 square miles, and (4) smaller drainage basins. depending on topography and potential use of the flood plains. The 89th Congress. in House Document 465, recommended the preparation of flood. prone area maps to as..l\ist in minimizing flood losses by quickly identifying the areas of potential flood hazards. More detailed flood information may be required for other purposes such as structural designs. eco- nomic studies. or formulation of land-use regulations_ Such detailed information may be obtained from the U.S. Geological Survey, other Federal agencies, or State, local, and private agencies. t SCALE 1>24000 o I MILE EXPLANATION "I- ..", 0", '"", .., J- ~o ", -1-1'..s- "'",,,, "'", 0, ~ I t l r I /' / / / / , 21 "1IJOOOmN. 38'07'30' 104'0730" 1000 o -......... ........ 1000 '000 3000 4000 5000 6000 70CXJ FEET , Flood boundaries were estimated from: .Regional stage-frequency relations. , - .5 - - o I KILOMETER -.-...... --- CONTOUR INTERVAL 10 FEET DATuM IS MEAN SEA LEVEL B NEPESTA. COLO. N3807 5-WI0407 5/7 5 Base by U,S. Geological Survey 1960 -I i \ r PREPARED BY THE U. S, GEOLOGICAL SURVEY QUADRANGLE LOGA liON 1978 - - "'!'..... --,-~ - -~ - '- ! ) . --... ~