HomeMy WebLinkAboutTract 13694 Hydrology Study Vol 2 of 2 _ --
File DSk9:DR25A.OUT[216,0] printed on 06-Dec-89 10:58z59 Page 27
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1 94-25 18.09 2.109
2 5.59 12.89 2.585
3 3.02 11.60 2.754
4 8.44 11.89 2.713
5 3.76 13.35 2.531
QSMX(1) =
+1'000*1.000* 94.3)
+ .770*1.000* 5.6)
+ .712*1.000* 3.0)
+ .710*1.000* 8.4)
+ .798*1.000* 3.8)
= 109.717
OSMX(2) =
+1.306* .713* 94.3)
+1.000*1.000* 5.6)
+ .925*1.000* 3.0)
+ .939*1.000* 8.4)
+1.026* .965* 3.8)
= 107.765
OSMX(3) =
+1.415* .641* 94.3)
+1.082* .900* 5.6)
+1.000*1.000* 3.0)
+1.020* .975* 8.4)
+1.107* .869* 3.8)
= 105.995
OSMX(4) =
+1.389* .657* 94.3)
+1.062* .922* 5.6)
+ .982*1.000* 3.0)
+1.000*1.000* 8.4)
+1.087* .891* 3.8)
= 106.574
QSMX(5) =
+1.271* .738* 94.3)
+ .974*1.000* 5.6)
+ .900*1.000* 3.0)
+ .913*1.000* 8.4)
+1.000*1.000* 3.8)
= 108.087
Rainfall intensity and time of concentration
used for 5 MAIN streams.
Individual stream flow values are:
94.25 5.59 3.02 8.44 3.76
Possible confluenced flow values are:
109.72 107.76 105.99 106.57 108.09
Individual Stream Area values are:
60.00 2.90 1.50 4.50 2.00
Effective Total Area values are:
70.90 53.59 48.71 49.90 55.19
- - ------
Computed confluence estimates are:
Runoff(CFS) = 109.72 Tine(min.) = 18.088
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06 11112:13 Page 41
"�^':�H258.OUT[216,0] printed o»
Adding Area Flow To Street
25.00 Year computed rainfall intensity = 2.365 In/Hr
Decimal Fraction Soil Group A = .000
Decimal Fraction Soil Group B = 1'000
Decimal Fraction Soil Group C = .000
Decimal Fraction Soil Group D = .000
COMMERCIAL subarea type
SCS Curve Number for Soil(AMC 2) = 56.0
Pervious ratio(AP) = .100 Max loss rate(FM)= .073(In/Hr)
Effective Runoff Coefficient used for area (Q=CIA) is C = ^872
Subarea runoff = 2.469(CFS) for 1.50(Ac.)
Total runoff = 4.538(CFS) Total area = 2.20(Ac.)
Area averaged FM value = .073(In/Hr)
Depth of flow = .349(Ft.)
Average Velocity = 2.690(Ft/S)
Streetflow Hydraulics at ENDPOINT of street travel
Halfstreet Flow Width = 12.71(Ft.)
Flow Velocity = 2.65(Ft/S) Depth*Velocity = .92
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Process from Point/Station 58.00 to Point/Station 60.00
*** CONFLUENCE OF MINOR STREAMS ***
--_- - ----------------------------_-----------
_ - ---------------___-
25.00 Year computed rainfall intensity = 2.365 In/Hr
ALONG THE MAIN STREAM NUMBER: 2
The flow values used for the stream: 1 are
Time of concentration(nin.) = 14.94
Rainfall intensity (in./hr/) = 2.37
Total flow area (Acres) = 2.20
Total runoff (CFS) at confluence point = 4.54
Area averaged loss rate (FM) = .073
Area averaged pervious ratio (AP) = .100
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Process from Point/Station 60.60 to Point/Station 60.20
*** INITIAL AREA EVALUATION ***
-_--
_
l Fraction Soil Group A = .000
Decimal Fraction Soil Group B = 1.000
Decimal Fraction Soil Group C = .000
Decimal Fraction Soil Group D = .000
RESIDENTIAL(3 - 4 DU/AC)
SCS Curve Number for Soil(AMC 2) = 56.0
Pervious ratio(AP) = .600 Max loss rate(FM)= .440(In/Hr)
Subarea is RESIDENTIAL (3 - 4 DU/AC)
Initial subarea flow length = 840.00(Ft.)
Upstream elevation = 1079.00(Ft.)
Downstream elevation = 1052.00(Ft.)
Elevation difference = 27.00(Ft.)