| Flood Impacts |
| 16.0 | DISASTROUS FLOODING PREVIOUSLY UNKNOWN ON ENTIRE REACH OF WEST FORK CARSON RIVER IN SOUTHWEST DOUGLAS CO. NV AND EASTERN ALPINE CO. CA. EXTENSIVE DAMAGE TO HOMES...BUSINESSES...SCHOOLS...ROADS...BRIDGES AND WATER SYSTEMS. POWER...COMMUNICATIONS...AND TRANSPORTATION SYSTEMS SEVERELY AFFECTED. MOST HIGHWAYS AND BRIDGES FLOODED OR WASHED OUT. EXCEEDS RECORD 1/1/1997 FLOOD BY OVER A HALF FOOT...NEARLY A FOOT HIGHER THAN USGS ESTIMATED 100 YEAR /1 PERCENT/ FLOOD. |
| 15.5 | DISASTROUS...RECORD FLOODING ALONG ENTIRE REACH OF WEST FORK CARSON RIVER IN BOTH ALPINE CO. CA AND DOUGLAS CO. NV. EXTENSIVE DAMAGE TO HOMES...BUSINESSES...SCHOOLS...ROADS...BRIDGES AND WATER SYSTEMS. COMMUNICATIONS...POWER AND TRANSPORTATION SYSTEMS SEVERELY DISRUPTED. MANY HIGHWAYS...ROADS AND BRIDGES IMPASSABLE. AT ABOUT 9300 CFS...EXCEEDS RECORD FLOOD OF 1/2/1997 /8100 CFS/...AND OVER 3000 CFS GREATER THAN THE USGS ESTIMATED 100 YEAR FLOOD /6300 CFS/. |
| 15.0 | MAJOR FLOODING. SUBSTANTIAL DAMAGE TO HOMES...BUSINESSES... SCHOOLS AND PROPERTY IN THE SOUTH CARSON VALLEY FROM CENTERVILLE TO GENOA NV. MANY LOCAL ROADS FLOOD...SOME INCLUDE CENTERVILLE... MOTTSVILLE...AND MULLER LANES. INTERUPTION OF POWER... COMMUNICATIONS AND WATER SYSTEMS. MODERATE TO MAJOR FLOODING IN ALPINE COUNTY CA NEAR WOODFORDS AND PAYNESVILLE. CA HWYS 89 AND 88...AND NV HWY 88 FLOOD. ABOUT 5600 CFS. USGS ESTIMATED 70 YEAR FLOOD...ABOUT A 1.4 PERCENT CHANCE OF OCCURRING ANY YEAR. |
| 14.5 | MODERATE FLOODING IN SOUTHWEST CARSON VALLEY BETWEEN CENTERVILLE AND GENOA NEVADA...WITH SOME DAMAGE TO HOMES AND BUSINESSES. MANY LOCAL ROADS FLOODED IN THIS AREA. MINOR FLOODING IN ALPINE COUNTY CALIFORNIA NEAR WOODFORDS AND PAYNESVILLE. ABOUT 3500 CFS...USGS ESTIMATES THIS IS ABOUT A 25 YEAR FLOOD...WITH ABOUT A 4 PERCENT CHANCE OF OCCURRING ANY YEAR. |
| 14.0 | FLOOD STAGE. MINOR FLOODING BEGINS IN THE SOUTHWESTERN CARSON VALLEY BETWEEN CENTERVILLE AND GENOA NV. ABOUT 2200 CFS. USGS ESTIMATED 10 YEAR FLOOD...WITH A 10 PERCENT CHANCE OF OCCURRING ANY YEAR. |
| 13.5 | VERY MINOR FLOODING OF LOWEST AREAS ALONG THE WEST FORK CARSON RIVER. HOWEVER...RESIDENTS ALONG THE RIVER SHOULD BE PREPARED FOR FLOODING IF THERE ARE ADDITIONAL RISES DUE TO ADDITIONAL SNOWMELT AND/OR RAINFALL RUNOFF. ABOUT 1400 CFS. USGS ESTIMATED 3 YEAR FLOOD...WITH A 30 PERCENT CHANCE OF OCCURRING ANY YEAR. |
| 13.0 | MONITORING STAGE...NO FLOODING OCCURS. HOWEVER...RESIDENTS ALONG THE WEST FORK CARSON RIVER SHOULD BE PREPARED FOR FLOODING IF THERE ARE ADDITIONAL RISES DUE TO SNOWMELT AND/OR RAINFALL RUNOFF. ABOUT 900 CFS. USGS ESTIMATED 2 YEAR FLOOD...WITH A 50 PERCENT CHANCE OF OCCURRING ANY YEAR. |
