|
<br /> TABLE 1 - SUHMAKY OF DISCHARGES
<br /> ,-------------,--- ---- --------- -
<br /> FLOODING SOURCE DR<\INAGE AREA -------~~:.~--~!~~ CH~~ GE ~~~f~_- ----
<br /> AND LOCATION (sq. m~~~t- 10-YEAR SO-YEAR 100-YEAR 500-YEAR
<br /> ---,------ ---- --- --,----
<br /> SAN MARCOS RIVER
<br /> Upstream of confluence
<br /> of the Blanco River 95.08 6,310 15,520 20,460 42,680
<br /> Downstream of con-
<br /> fluence of 1 91.78 6,900 15,460 19,890 42,930
<br /> Willow Springs Creek
<br /> Upstream of confluence
<br /> of Willow Springs
<br /> Creek 90.64 5,660 13 ,290 17,190 34,680
<br /> Downstream of con-
<br /> fluence of 1 89.84 5,870 13,310 17,040 35,390
<br /> Purgatory Creek
<br /> Upstream of confluence
<br /> of Purgatory Creek 49.70 4,610 ].'J,220 12,920 25,770
<br /> At confluence 1 48.50 4,570 10,610 26,()40
<br /> with Spring Lake 11 , 380
<br /> SINK CRERK
<br /> At confluence with
<br /> San Marcos River 48.50 4,570 10,610 13 , 380 26,040
<br /> Approximately 1,500
<br /> feet downstream of
<br /> upstream Lime- 1
<br /> kiln Road crossing 45.50 4,680 9,490 11 ,620 26,770
<br /> Approximately 550
<br /> feet upstream of
<br /> upstream Limekiln
<br /> Road crossing 44.30 4,120 8,130 9,930 26,710
<br /> PURGATORY CREEK
<br /> At confluence 2
<br /> with San Marcos River 40.14 2,530 4,920 5,960 12,010
<br /> Dm,ms t ream 2 19.04 2,530 4,920 14,260
<br /> of Diversion 2 5,960
<br /> Upstream of ')
<br /> Diversion 2'- 39.04 Lf,250 7,420 8,820 19,470
<br /> Upstream of
<br /> Willow Springs 3
<br /> Creek cross flow 36.08 1,560 2,830 7,710 24,210
<br /> Downstream of SCS Dam
<br /> #5 34.68 830 3,040 8,320 24,400
<br /> ~Discharge increases due to storage-routing effects
<br /> ~Flows are being diverted through diversion bridge and over railroads into
<br /> 3Willow Springs Creek
<br /> . Discharge decreases due to routing effects
<br /> 7
<br />
|