FLOOD08228

• County: Boulder
• Community: Boulder
• Stream Name: Boulder Creek
• Basin: South Platte
• Title: Urban Drainage and Flood Control District
• Date: 3/1/1990
• Prepared For: Boulder Creek
• Prepared By: Goerge V. Sabol
• Floodplain - Doc Type: Flood Mitigation/Flood Warning/Watershed Restoration

I
I
I
I
I
I
w
I ::;:
i=
l-
I z
::>
I 0::
W
0..
I J:
I-
Cl.
w
I Cl
.
w
I I-
<(
0::
I
I
I
I I
I
I
I

Rainfall Losses Hydrologic Design Manual
for Maricopa COunty

--,- ~
I
I
I
-
I
.
I
,
I
I
I
,
I
I
I
I
I
I

INITIAL LOSS (STRTL) - SURFACE RETENTION LOSS +
INITIAL INFIL TRA TION LOSS

UNIFORM LOSS RATE (CNSTL) = fc

RAINFALL
EXCESS

______1___

fc

INFILTRATION
INITIAL INFIL TRA TION LOSS
SURFACE RETENTION LOSS

Figure 4.13
Representation of Rainfall Loss According to the
Initial Loss Plus Uniform Loss Rate (IL+ULR)

~~~*~:':~W..:.}~~~~.>>>>:-?~.:-w.::}Y/.':-:~{'C'"":'W.{M:-:-~:;':-:':';':'~~-:-:-:':~<<{{*~:{':~':-:-.,w..w,.:{~.w.-}:-:'~-}:::':-:':{:-:'h:{':.o:-:*:-:':-:{':<<~-l-Y.*}l'i",,}>>Y"::~~-Y.>>>>>:.y.~,:{,:,:{X-}:';'~:{-:>:0:-}~~*

62