| Flood Impacts |
| 28.4 | THE RECORD STAGE (1978) IS REACHED. MAJOR FLOODING BEGINS UPSTREAM IN COTTONWOOD CAMPGROUNDS AT CASTOLON...AS STAGES AT EACH LOCATION ARE PRACTICALLY SYNONYMOUS. MOST PARK ROADS NEAR THE RIVER FLOOD. NO APPRECIABLE DAMAGE OCCURS AT THE GAGE SITE...EVEN AT RECORD STAGE. |
| 19.0 | MAJOR LOWLAND FLOODING BEGINS. FLOODING BEGINS TO OCCUR UPSTREAM IN COTTONWOOD CAMPGROUNDS AT CASTOLON...AS STAGES AT EACH LOCATION ARE PRACTICALLY SYNONYMOUS. MODERATE LOWLAND FLOODING BEGINS AT THE GAGE SITE...BUT NO DAMAGE OCCURS. THE GAGE IS INACCESSIBLE...AS RIVER ROAD IS IMPASSABLE AT SEVERAL LOCATIONS. |
| 15.0 | FLOOD STAGE IS REACHED. MODERATE LOWLAND FLOODING BEGINS. ROADS THAT LEAD TO COTTONWOOD CAMPGROUND AND RIVER ROAD MAY FLOOD. STAGES ARE PRACTICALLY SYNONYMOUS WITH THE GAGE AT COTTONWOOD CAMPGROUNDS AT CASTOLON (CSST2)...AND THEREFORE REPRESENT THE REACH FROM SANTA ELENA CANYON THROUGH COTTONWOOD CAMPGROUNDS...WHERE DAMAGE MAY OCCUR. CATTLE ALSO GRAZE IN THE LOWLANDS...AND MAY BE THREATENED. |
| 12.0 | BANKFULL STAGE IS REACHED. MINOR LOWLAND FLOODING OCCURS WITH NO DAMAGE LIKELY NEAR GAUGE SITE. |
