FLOOD01923

• Designation Number: 462
• County: Douglas
• Community: Unincorporated Douglas County
• Stream Name: Willow, Little Willow, East Willow Creeks
• Title: Flood Hazard Area Delineation - Willow Creek, Little Willow Creek, East Willow Creek, Douglas County, CO
• Date: 12/1/1996
• Designation Date: 7/1/1997
• Floodplain - Doc Type: Floodplain Report/Masterplan

List of Tables (Body of Report)

Number

Descriptiou

Table 3.1
Table 3.2
Table 4.2
Table 4.3
Table 4.4
Table 4.5

Rainfall Depths
Rainfall Distributions
Hydraulic Information for Platte Canyon Reservoir
Hydraulic Summary of Crossings Along Little Willow Creek
Hydraulic Summary of Crossings Along Willow Creek
Hydraulic Summary of Crossings Along East Willow Creek

List of Figures (Body of Report)

Figure 1.1
Figure 2.1E
Figure 2.1W
Figure 3.1E
Figure 3.1W
Figure 3.2E
Figure 3.2W
Figure 3.3

Vicinity Map
Soils Map/East
Soils MaplW est
Subwatersheds/East
SubwatershedsiW est
Streams and Conveyance Elements/East
Streams and Conveyance ElementsiWest
SWMM Routing Schematic

Appendix A Miscellaneous Figures

Figure 2.2E
Figure 2.2W
Figure 3.4
Figure 3.5
Figure 3.6
Figure 3.7

Future Development Imperviousness/East
Future Development ImperviousnessiWest
Discharge Profile - Willow Creek
Discharge Profile - Little Willow Creek
Discharge Profile - East Willow Creek
Baseline Hydrographs at Selected Locations

Appendix A Miscellaneous Tables

Table 3.3
Table 3.4
Table 3.5
Table 3.6
Table 4.1

CUHP Parameters: Future Development Conditions
Peak Flow Summary (CUHP)
SWMM Element Parameters
Peak Discharge Summary by Design Point
Floodplain and Floodway Data

Appendix B Drawings

Page

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18

Sheet
Number

Description

Sheet Index
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Sheet Index
Confluence with South Platte River (All Creeks)
Little Willow Creek - ST A. 0+00 to 28+00
Little Willow Creek - STA. 28+00 to 47+00
Little Willow Creek - ST A. 47+00 to 76+50
Little Willow Creek - ST A. 76+50 to 104+00
Little Willow Creek - STA. 104+00 to 132+00
Little Willow Creek - STA. 132+00 to 160+00
Little Willow Creek - STA. 160+00 to 187+00
Willow Creek - ST A. 0+00 to 28+00
Willow Creek - ST A. 28+00 to 56+00
Willow Creek - ST A. 56+00 to 84+00
Willow Creek - ST A. 84+00 to 112+00
Willow Creek - ST A. 112+00 to 140+00
Willow Creek - ST A. 140+00 to 170+00
Willow Creek - ST A. 170+00 to 198+00
Willow Creek - ST A. 198+00 to 227+00
Willow Creek - ST A. 227+00 to 255+00
Willow Creek - ST A. 255+00 to 282+00
Willow Creek - ST A. 282+00 to 311 +00
Willow Creek - STA. 311+00 to 339+00
Willow Creek - ST A. 312+00 to 323+50 (Plan View)
Willow Creek - STA. 339+00 to 356+40
East Willow Creek - ST A. 0+00 to 28+00
East Willow Creek - ST A. 28+00 to 56+00
East Willow Creek - ST A. 56+00 to 84+00
East Willow Creek - ST A. 84+00 to 112+00
East Willow Creek - STA. 112+00 to 135+14

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Technical Appendix (Submitted Separately)

(ii)