FLOOD08209

• County: Adams
• County: Arapahoe
• County: Douglas, Jefferson
• Community: Denver Metroploitan Area
• Stream Name: South Platte River, Chatfield Dam to Baseline Road
• Basin: South Platte
• Title: Major Drainageway Planning
• Date: 8/1/1984
• Prepared For: Denver Metropolitan Area
• Prepared By: Wright Water Engineers, Inc.
• Contract/PO #: &&
• Floodplain - Doc Type: Floodplain Report/Masterplan

TABLE OF CONTENTS
(Continued)

Section

Description

IV

FLOOD PROBLEMS
Reach 1: Chatfield to Columbine Valley
Reach 2: Columbine Valley to Oxford.
Reach 3: Oxford to Bates
Reach 4: Bates to Colfax
Evans Avenue. . .
Vallejo to Colfax. , .
8th Avenue. . . . . . . . . . .
Reach 5: Co lfax to Cherry Creek. .
Reach 6: Cherry Creek to Franklin.
Reach 7: Frank 1 in to Sand Creek. . .
Reach 8: Sand Creek to Baseline Road
References. . . , . . . , , , . . . ,

v

RIVER FLOW AND WATER RIGHTS
Tri-Lakes Projects. .. ... , . , . . .
Base Flow Needs . . .. ,.. . . . . . .
Current Informal Methods of Low-Flow Control.
Travel Time. . . . . , . , . . . . ,
Need for Institutionalized Procedures
Water Rights, . . . . , . . . . .
Future Low Flow Projections , . .
Amelioration of Low-Flow Problem.
References.

VI

WATER QUALITY
In troduc t i on. , . . . . . . . . . . . . .
Stream Classifications and Water Quality

Standards. . . . . . . . . . . . . . . . .
Assess!ng ~he Status of Water Quality By: (1)
Monltorlng Par~eters, and (2) Surveying
Fish and Benthic Organisms. . . . , . . .
Water Quality Par~eters, . . . . . , . . .
Aquatic Life in the South Platte River. . .
Summary Regarding Water Quality Par~eters
and Aquatic Life. . , . . . . , . . .
Urban Runoff Quality. . . . . . . . . . .
Results of Runoff Monitoring. . . . . ,
Impact of Storm Runoff on South Platte
River Water Quality. . . . . . . . , .
Point Sources of Pollution. . . . . . . . . .
Littleton/Englewood Sewage Treatment Plant.
Denver Metropo 1 i tan Wastewater Treatment

Pl ant. . . . . . . . . . . . . . . . . .
South Adams County Sewage Treatment Pl ant
Leachate from Solid Water Landfills. . ,
Comparing Pollutant Loads from Point vs.
Non-Point Sources of Pollution. . .
Impact of Flood Control Alternatives on River
Water Qual ity.
Introduction. . . . . . . . . . . . .

Page

Section

IV-I
IV-I
IV-I
IV-I
IV-I
IV-I
IV-2
IV-2
IV-2
IV-3
IV-3
IV-4

VI

VII

V-I
V-2
V-2
V-3
V-3
V-3
V-8
V-9
V-IO

VIII

VI-I
VI -I

VI-I
VI-2
VI-3

VI-4
VI-4
VI-4

VI-4
VI-5
VI-6

VI-6
VI-6
VI-6

IX

X

VI-6

VI-7
VI-7

TABLE OF CONTENTS
(Continued)

Description

Implications of Streambank Stabilization
and Limited Channelization. . . . . .
Implications of Lake Development. . . .
Water Quality Problems. , . . . . . . ,
Lake Feasibility With Respect to Water
Quality. . .
References. . . . . . . . . . . , . . , .

MINERAL RESOURCES
Geology. . . .
General . . .
Ad~s County.
Sand and Gravel Resources
Reserves. . .. ......,
Inventory of Sand and Gravel Mining
References, , . . . . . . . .

Activities.

GEOMORPHOLOGY AND SEDIMENTATION
Description of River, .
River Characteristics
Sedimentation , , .
Erosion Problem. . .
Chatfield to Oxford
Oxford to Bates . .
Bates to Co 1 fax . . . .
Colfax to Cherry Creek. .
Cherry Creek to Franklin.
Franklin to Sand Creek. .
Sand Creek to Brighton. . , . ,
Chatfield Reservoir to Brighton
Sediment Load . , . .
Impacts from Erosion.
References. . . . .

GROUNDWATER RESOURCES
Depth to Water Table. .
Chemical Water Quality.
Well Yields, . . , . .
Well Pumping Effect on River,
Gravel Mining. . . . .
References. . . . . . . .

PARKS. RECREATION. AND OPEN SPACE INVENTORY
Introduction. . . . .
General . . . . . , ,
Recreation Inventory.
Dams. . . . . .
Water Quality. , .
Water Quantity. . .

Page

VI-7
VI-8
VI-8

VI-9
VI-I8

VII-I
VII-I
VII-3
VII -6
V II -6
VII -7
VII-8

VII I-I
VI I I-I
VIII-5
VIII-5
V I II-5
VIII-8
VII 1-8
V I II-8
VII 1-8
'1111-8
VII 1-8
V I II-8
VII 1-9
VII 1-10
VII I -10

IX-I
IX-2
IX-2
IX-2
IX-2
IX-4

X-I
X-I
X-2
X-3
X-3
X-3