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

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FUTUREFLOODSFloods of the same or larger magnitude as those thathave occurred in the past could occur in the future. Largerfloods have been experienced in the past on streams with simi largeographical and physiographical characteristics as those foundin the study area. Simi lar combinations of rainfall and runoffwhich caused these floods could occur in the Sarasota County area.Therefore, to determine the flooding potential of the study area,was necessary to consider storms and floods that have occurredin regions of I ike topography, watershed cover and physical characteristics.Discussion of the future floods in this report isI imited to those that have been designated as the IntermediateRegional Flood and the Standard Project Flood. The StandardProject Flood represents a reasonable upper I imit of expectedflooding in the study area. The Intermediate Regional Floodmay reasonably be expected to occur more frequently although itwi I I not be as severe as the infrequent Standard Project Flood.INTERMEDIATE REGIONAL FLOODThe Intermediate Regional Flood is defined as one thatcould occur once in 100 years on the average, although it couldoccur in any year. The peak flow of this flood was developedfrom analysis of streamflow and precipitation records and runoffcharacteristics of streams in the general area. Peak flows thusdeveloped for the Intermediate Regional Flood at selected locationsin the study area are shown in table 2. The flood hydrographfor South Creek is shown on plate 10.17
STA.NDARDPROJ en FLOODThe Standard Project Flood is defined as a major floodthat can be expected to occur from a severe combination of meteorologicaland hydrological conditions that is considered reasonablycharacter·istic of the geographical area in which the studyarea is located, excluding extremely rare combinations. The Corpsof Engineers, in cooperation with the NOAA Weather Service, hasmade comprehensive studies and investigations based on the pastrecore; of experienced storms and floods and has developed generali'dd procedures for estimating the flood potential of streams.Peak discharges for the Standard Project Flood at selected locationsin the study area are shown in tabie 2. The flood hydrographfor South Creek is shown on plate iO. The relative watersurface elevations for the Intermediate Regional Flood and theStandard Project Flood are shown on plates 6 and 7.18._ ..__._----------------
Page 1: 1FLOOD PLAIN INFORMATIONSOUTH CREEK
Page 5 and 6: CONTENTSPREFACE--------------------
Page 7 and 8: ICONTENTS(Continued)FiGURESFl gureP
Page 9 and 10: PREFACEThe polLtion 06 SaJta..6o:m
Page 11 and 12: North Creek, Catfish Creek, Clower
Page 13 and 14: FLOODSITUATIONSOURCES OF DATA AND R
Page 15 and 16: away and carried downstream to coll
Page 17 and 18: Figure 1U. S. Highway 41 Bridge Ove
Page 19 and 20: Figure 5 U. S. Highway 41 Box Culve
Page 21 and 22: FLOOD DESCRIPTIONSThe fol lowing ar
Page 23 and 24: "The worst flooding in 1962 occurre
Page 25: .•:::=;...Figure 7 Flood of 1972_
Page 29 and 30: Table 3 shows a flood elevation com
Page 31 and 32: area tJOUneJdl il" 'I~I(' ,jr('dS t
Page 33 and 34: TABLE 5ELEVATION DATA OF STRUCTURES
Page 35 and 36: TABLE 6RATES OF RISE AND DURATION(S
Page 37 and 38: Figure 9 U. S. Highway 41 Bridge Uv
Page 39 and 40: GLOSSARYBackwater. The resulting hi
Page 41 and 42: GLOSSARYBackwater. The resulting hi
Page 43 and 44: Left Bank. The bank on the left sid
Page 45 and 46: "•c • ••~- .I - -.'.~. .""I
Page 47 and 48: ..'e0:I.;J tli'}1--------------~---
Page 49 and 50: 25...JVI::::Ii.2015~ 10lL.IZ50-l-e:
Page 51 and 52: •t-=ILIZoI~>UJ...JUJCROSS SECTI

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

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