flood plain information south creek, north creek, catfish - Sarasota ...

Table 3 shows a flood elevation comparison betweenthe Intermdiate Reqional and Standard Project Floods at theupstream and downstream side of the U. S. Highway 41 bridgesand culverts over the six creeks studied in this report.TABLE 3FLOODELEVATIONSLocationIntermediateRegional Flood(al Standard Project Flood(alDownstream Upstream Downstream UpstreamSouth Creek Bridge 2.7 5. I 3.3 6.1North Creek Bridge 2.6 2.7 3.0 3. ICatfish Creek Bridge 6.9 7. I 8.6 8.7Clower Creek Culvert 8.7 8.8 9.2 9.3EI Ii graw Bayou Culvert 1.3 1.6 1.3 I .9Matheny Creek Culvert 2.4 2.5 3.0 3. I(a 1 Feet, mean sea level datumFREOUE~ICYIT is not practical to assign frequencies to a StandardProject Flood. A flood of this magnitude would be rare; the combinationof forces necessary for occurrence would be extremely infrequent.A flood of this magnitude, however, could happen at anytime. A flood larger than the Standard Project Flood is also possible,but the combination of factors necessary to produce such aflood would be extremely rare.20