FLORIDA GEOLOGICAL SURVEY


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51p00


I EXPLANATION
o Actual drainage area


 Croor"- *o
 THolder
 STrilby
Dade City e---


Rerdell


 at gaging station.
* Effective (contributing)
drainage area at -
 gaging station.


 I I II


2C0u0y I


1(00 1
 1oo
 10


0


200


500


10oo0


2,000


 Drainage area, in square miles
 Figure 58. Relation between peak discharge and drainage area for
 Withlacoochee River, flood of March 1960.





 From the curve represented by the broken line in figure 58, the
peak discharge from a 186 square-mile drainage area would be
3,400 cfs. This discharge at the Trilby gaging station would occur
at gage height 15.4 feet, which is 4.0 feet lower than the crest
stage of March 1960.
 Flood stages at the Croom station would be further reduced by
storage in Little Withlacoochee Reservoir (drainage area, 86 square
miles). The total reduction in crest stage for a flood equivalent to
that of March 1960 would be 1.7 feet at this station.
 The reduction in crest stage by flood storage in reservoirs
proposed in Green Swamp would continue to decrease at points
further downstream on the Withlacoochee River. At the crossing
of State Highway 200 at the Holder station, reduction of crest stage
by storage in Green Swamp would be small. However, the Jumper
Creek Reservoir would provide additional storage for flood control
in the lower Withlacoochee River basin.


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