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<br />IV <br /> <br />CONTENTS <br /> <br />FIGURE J. Map showing locatio? of flooded areas .............................................. <br />2. Imagery from ITOS I satellite, 1453 hours, m.s.t., September 4, 1970. <br />3. Imagery from ITOS I satellite, 1550 hours, m.s.t., September 5, 1970. <br />4-7. Maps showing: <br />4. Location of stations where observational day <br />precipitation during September 3-6, 1970, exceeded that <br />previously known and where precipitation equaled or exceeded <br />the 100~year 24-hour precipitation...................................... <br />5. Rainfall, September 12-14, 1970........................................".... <br />6. Location of tlood-determination sites in southern <br />Arizona.......................................................................,....... <br />7. Location of flood-determination sites in central <br />Arizona... ......... .... .... ..' ........ ........ ...... ............. .... ... ... ..... ... ..' <br />8. Graph showing maximum discharges in relation to drainage areas <br />in Arizona. ..... .... ...... ..... .... ....... ......., ...... ........ ....... .......... ... ........ ..... <br />9. Photograph showing a flood-deposited boulder perched on top of <br />logs in upper Tonto Creek............."............................................... <br />10. Photograph showing cabin damaged by the flood in Tonto Creek <br />near Kohl Ranch ............................................................................ <br />II. Map showing location of t1ood-determination sites in <br />northeastern Arizona ... ..... ... ......... .......... ......... ......... ... ...... ... .... ...... <br />12. Map showing location of flood-determination sites in the <br />Four Corners area ......................................................................... <br />13. Photograph showing the Denver and Rio Grande Western <br />narrow gage railroad in the Animas River canyon near <br />Silverton after the flood of September 5-7, 1970............................ <br /> <br />TABLES <br /> <br />TABLE I. Comparison of maximum observational day <br />precipitation during September 3-6, 1970, with that previously known at <br />selected stations in Arizona ............................................................. 9 <br />2. Comparison of maximum 24-hour precipitation <br />during September 3-6, 1970, with the lOO-year 24-hour precipitation at <br />selected sites..................................................................................:.. II <br />3. Channel modification in selected drainage basins, <br />floods of September 1970............................................................... 13 <br />4. Summary of flood damage, in thousands of dollars, <br />in Arizona, September 1970............................................................ 38 <br />5. Summary of flood damage, in thousands of dollars, <br />in Dolores River and Sa~ Juan River basins, September 1970....... 38 <br />6. Summary of flood stages and discharges ............................................ 39 <br /> <br />p,.. <br />2 <br />5 <br />6 <br /> <br />METRIC EQUlV ALENTS <br /> <br />CONTENTS <br /> <br />V <br /> <br />Multiply English Ul1il <br /> <br />[The following factors may be applied to conven the English units used in this report 10 metric units.] <br /> <br />To obtain m~trjc unit <br /> <br />By <br /> <br />8 <br />12 <br /> <br />Inches (in.) .............................................. <br />Feet (ft) ............................... ................... <br />Miles (mi) ............................................... <br />Square miles (mi2) ........................ <br />Cubic feet per second (ft3/s). ... .............. <br /> <br />19 <br /> <br />20 <br /> <br />21 <br /> <br />Cubic feet per second <br />per square mile <br />(ft3/s per mi2). <br />Acre-feet (acre-it) .................................... <br />Pounds (Ib) ............................................. <br /> <br />23 <br /> <br />25.4 <br />.3048 <br />1.609 <br />2.590 <br />28.32 <br />.02832 <br /> <br />.01093 <br /> <br />.001233 <br />.4536 <br /> <br />Millimeters (mm). <br />Meters (m). <br />Kilometers (km). <br />Square kilometers (km2). <br />Liters per second (LIs). <br />Cubic meters per second <br />(m'/'). <br />Cubic meters per second <br />per squar-e kilometer <br />(m3/s per km2). <br />Cubic hectometers (hm)). <br />Kilograms (kg).. <br /> <br />24 <br /> <br />31 <br /> <br />33 <br /> <br />35 <br /> <br />p,.. <br />