FLOOD02900

• County: Adams
• Community: Commerce City
• Basin: South Platte
• Title: Lower First Creek and Direct Flow Area 0055 Major Drainageway Planning
• Date: 5/1/2002
• Prepared For: UDFDC
• Prepared By: Turner Collie & Braden Inc.
• Floodplain - Doc Type: Floodplain Report/Masterplan

List of Tables

Table III-I
Table III-2a
Table III-2b
Table III-2c
Table III-2d
Table III-2e
Table III-2f
Table III-2g
Table III-3
Table III-4
Table III-5
Table III-6
Table III-?
Table VIol
Table VI-2
Table VI-3
Table VI-4

List of Figures

Figure E-I
Figure E-2
Figure I-I
Figure II-IA
Figure lI-lB
Figure II-2A
Figure II-2B
Figure III-I
Figure III-2
Figure III-3a
Figure III-3b
Figure III-3c
Figure III-3d
Figure 1lI-3e
Figure III-3f
Figure V-I
Figure VI-I

List of Appendices

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One hour Rainfall Depths
Point Rainfall Values
2- Year Storm Depths
5-YearStorm Depths
10- Year Storm Depths
50- Year Storm Depths
100-Year Storm Depths
500-Year Storm Depths
CUHP Subwatershed Characteristics Existing Land Use
CURP Subwatershed Characteristics Future Land Use
Selected Peak Flows, First Creek, DFA 0055
Peak Flow Comparison First Creek, DF A 0055
First Creek Inflow/Outflow and 100- Y ear Volumes
Maul Reservoir Storage-Outflow Relationship
Unit Cost Data
Total Drainage Improvement Costs Summarized by Sheet
Total Drainage Improvement Costs Summarized by Jurisdiction

Appendix A Meeting Minutes and Correspondence

Appendix B CUHP and UDSWM Input File Examples

Appendix C Overall Watershed Drawings

Appendix D Preliminary Design Drawings

Appendix E Details

Study Area
Preliminary Design
Study Area
First Creek Watershed Delineation
First Creek Watershed Delineation
Wetland Assessment
Existing Facilities
First Creek Sub-Watersheds
Typical 100- Y ear Hydrographs
2- Year Peak Discharge Profile
5- Year Peak Discharge Profile
10- Year Peak Discharge Profile
50-Year Peak Discharge Profile
100- Year Peak Discharge Profile
500- Year Peak Discharge Profile
Typical Improved Channel Section
Inflow/Outflow Hydrographs at Maul Reservoir