HomeMy WebLinkAboutCOVER AND TABLE OF CONTENTSBarr Engineering Co.
4700 West 77th Street
Minneapolis, MN 55435-4803
3hone 5 83-00 )a[ 5 83-0
City of Edina
Comprehensive
Water Resources
Management
Plan
December 2011
City of Edina
Comprehensive Water Resource Management Plan
Prepared for
City of Edina
December 2011
4700 West 77th Street
Minneapolis, MN 55435-4803
Phone: (952) 832-2600
Fax: (952) 832-2601
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City of Edina
Comprehensive Water Resource Management Plan
Table of Contents
List of Acronyms ....................................................................................................................................... xvi
1.0 Executive Summary ......................................................................................................................... 1-1
1.1 Stormwater Management Goals & Policies ........................................................................ 1-1
1.1.1 Runoff Management & Flood Control (Section 3.1) ............................................. 1-1
1.1.2 Water Quality Management (Sections 3.2 and 3.3) ............................................... 1-2
1.1.3 Wetland Protection (Section 3.4) ........................................................................... 1-2
1.2 Problems, Issues and Potential Solutions ............................................................................ 1-3
1.2.1 Water Resources Implementation Program ........................................................... 1-3
1.2.2 Runoff Management and Flood Control ................................................................ 1-3
1.2.3 Water Quality Management ................................................................................... 1-4
2.0 Introduction and Physical Setting .................................................................................................... 2-1
2.1 Plan Purposes ...................................................................................................................... 2-1
2.2 Physical Setting ................................................................................................................... 2-2
2.2.1 Drainage Patterns ................................................................................................... 2-2
2.2.2 Land Use ................................................................................................................ 2-3
2.2.3 Soils ........................................................................................................................ 2-3
2.2.4 Topography ............................................................................................................ 2-3
2.2.5 Water Quality Monitoring ...................................................................................... 2-4
2.2.5.1 Lakes .................................................................................................. 2-4
2.2.5.2 Creeks ................................................................................................. 2-4
2.2.6 Parks & Recreation ................................................................................................ 2-6
2.2.7 Public Utilities ........................................................................................................ 2-6
2.2.8 Fish and Wildlife Habitat ....................................................................................... 2-6
2.2.9 Unique Features & Scenic Areas ........................................................................... 2-7
2.2.10 Pollutant Sources .................................................................................................... 2-7
2.2.10.1 Investigation and Cleanup Sites ......................................................... 2-8
2.2.10.2 Tank Sites and Leak Sites ................................................................... 2-8
2.2.10.3 Individual Sewage Treatment Systems (ISTS) ................................... 2-8
2.2.11 Groundwater ........................................................................................................... 2-8
3.0 Policies for Stormwater Management .............................................................................................. 3-1
3.1 Runoff Management and Flood Control ............................................................................. 3-1
3.1.1 Runoff Management and Flood Control Policies ................................................... 3-2
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3.1.1.1 Minimum Building Elevations ........................................................... 3-3
3.1.1.2 Stormwater Management Design Standards ....................................... 3-3
3.2 Water Quality ...................................................................................................................... 3-4
3.2.1 Background Water Quality Information ................................................................ 3-4
3.2.2 Water Quality Management Policies ..................................................................... 3-6
3.2.3 Water Quality Management Standards .................................................................. 3-7
3.2.3.1 Stormwater Retention/Detention Systems .......................................... 3-7
3.2.3.2 Construction Site Standards ............................................................... 3-7
3.3 Erosion and Sediment Control ............................................................................................ 3-7
3.3.1 Erosion and Sediment Control Policies .................................................................. 3-7
3.4 Wetlands .............................................................................................................................. 3-8
3.4.1 Wetlands Policies ................................................................................................... 3-8
3.5 Floodplain ........................................................................................................................... 3-8
3.6 Recreation and Habitat ........................................................................................................ 3-9
3.7 Groundwater ........................................................................................................................ 3-9
3.8 Education Program ............................................................................................................ 3-10
3.9 NPDES Considerations ..................................................................................................... 3-11
4.0 Methodology for Modeling .............................................................................................................. 4-1
4.1 Methodology for Hydrologic/Hydraulic Modeling ............................................................. 4-1
4.1.1 Hydrologic Modeling ............................................................................................. 4-1
4.1.1.1 Watershed Data .................................................................................. 4-1
4.1.1.1.1 Watershed Area ................................................................ 4-1
4.1.1.1.2 Land Use Data .................................................................. 4-1
4.1.1.1.3 Watershed Width and Slope ............................................. 4-3
4.1.1.2 Rainfall Data ....................................................................................... 4-3
4.1.1.3 Infiltration Data .................................................................................. 4-4
4.1.1.3.1 Soils .................................................................................. 4-4
4.1.1.3.2 Horton Infiltration ............................................................ 4-4
4.1.1.4 Depression Storage Data .................................................................... 4-5
4.1.2 Hydraulic Modeling ............................................................................................... 4-5
4.1.2.1 Storm Sewer Network ........................................................................ 4-5
4.1.2.1.1 Assumptions ..................................................................... 4-5
4.1.2.1.2 Tailwater Effects............................................................... 4-6
4.1.2.2 Overland Flow Network ..................................................................... 4-6
4.2 Methodology for Water Quality Modeling ......................................................................... 4-7
4.2.1 Watershed Characteristics ...................................................................................... 4-8
4.2.1.1 Impervious Fraction ............................................................................ 4-8
4.2.1.2 Pervious Curve Number ..................................................................... 4-9
4.2.1.3 Other P8 Watershed Input Parameters ................................................ 4-9
4.2.2 Treatment Device Characteristics ........................................................................ 4-10
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4.2.2.1 Dead Storage .................................................................................... 4-10
4.2.2.2 Live Storage...................................................................................... 4-10
4.2.2.3 Other P8 Treatment Device Input Characteristics ............................ 4-10
4.2.3 Precipitation and Temperature Data ..................................................................... 4-11
4.2.4 Selection of Other P8 Model Parameters ............................................................. 4-11
4.2.4.1 Time Step, Snowmelt, and Runoff Parameters ................................. 4-11
4.2.4.2 Particle File Selection ....................................................................... 4-12
4.2.4.3 Passes through the Storm File .......................................................... 4-12
5.0 Nine Mile Creek- North ................................................................................................................... 5-1
5.1 General Description of Drainage Area ................................................................................ 5-1
5.1.1 Drainage Patterns ................................................................................................... 5-1
5.1.1.1 Mirror Lake ........................................................................................ 5-1
5.1.1.2 Highlands Lake ................................................................................... 5-2
5.1.1.3 Hawkes Lake ...................................................................................... 5-2
5.1.1.4 Mud Lake (Bredesen Park) ................................................................. 5-2
5.1.1.5 Nine Mile North ................................................................................. 5-3
5.2 Stormwater System Analysis and Results ........................................................................... 5-3
5.2.1 Hydrologic/Hydraulic Modeling Results ............................................................... 5-3
5.2.2 Water Quality Modeling Results ............................................................................ 5-5
5.3 Implementation Considerations .......................................................................................... 5-6
5.3.1 Flood Protection Projects ....................................................................................... 5-6
5.3.1.1 Hawkes Drive (HL_2) ........................................................................ 5-6
5.3.1.2 5711 & 5717 Grove Street (HL_18) ................................................... 5-7
5.3.1.3 5516 & 5520 Dundee Road (HL_25) ................................................. 5-7
5.3.1.4 505, 509, & 513 Tyler Court (ML_19) ............................................... 5-7
5.3.1.5 6009 Leslie Lane (MD_22) ................................................................ 5-8
5.3.1.6 5316 Schaeffer Road (MD_28) .......................................................... 5-8
5.3.1.7 Fountain Woods Apartments (NMN_90 & NMN_23) ....................... 5-9
5.3.2 Construction/Upgrade of Water Quality Basins..................................................... 5-9
5.3.2.1 MD_15 ................................................................................................ 5-9
5.3.2.2 NMN_27 ........................................................................................... 5-10
5.3.2.3 NMN_24 ........................................................................................... 5-10
5.3.2.4 NMN_49 ........................................................................................... 5-10
5.3.2.5 MD_3 ................................................................................................ 5-10
6.0 Nine Mile Creek—Central ............................................................................................................... 6-1
6.1 General Description of Drainage Area ................................................................................ 6-1
6.1.1 Drainage Patterns ................................................................................................... 6-1
6.1.1.1 Colonial Ponds.................................................................................... 6-1
6.1.1.2 Indian Pond ......................................................................................... 6-1
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6.1.1.3 Nine Mile Central ............................................................................... 6-2
6.2 Stormwater System Analysis and Results ........................................................................... 6-2
6.2.1 Hydrologic/Hydraulic Modeling Results ............................................................... 6-2
6.2.2 Water Quality Modeling Results ............................................................................ 6-4
6.3 Implementation Considerations .......................................................................................... 6-5
6.3.1 Flood Protection Projects ....................................................................................... 6-5
6.3.1.1 6005 & 6009 Crescent Drive (manhole 457) ...................................... 6-5
6.3.1.2 Cherokee Trail & Gleason Backyard Depression Area (IP_4) ........... 6-6
6.3.1.3 5339 West 64th Street (NMC_80) ....................................................... 6-6
6.3.1.4 Valley View Road & Hillside Road (NMC_86, NMC_120) ............. 6-6
6.3.1.5 West 66th Street & Naomi Drive Area (NMC_71, NMC_103) .......... 6-7
6.3.1.6 6712, 6716, 6720 Ridgeview Drive (NMC_106) ............................... 6-7
6.3.1.7 6808, 6812, 6816, 6820 Ridgeview Drive (NMC_107) ..................... 6-8
6.3.2 Construction/Upgrade of Water Quality Basins..................................................... 6-8
7.0 Lake Cornelia/Lake Edina/Adam’s Hill ........................................................................................... 7-1
7.1 General Description of Drainage Area ................................................................................ 7-1
7.1.1 Drainage Patterns ................................................................................................... 7-1
7.1.1.1 North Cornelia .................................................................................... 7-1
7.1.1.2 South Lake Cornelia ........................................................................... 7-2
7.1.1.3 Lake Edina .......................................................................................... 7-2
7.1.1.4 Adam’s Hill Pond ............................................................................... 7-2
7.2 Stormwater System Analysis and Results ........................................................................... 7-3
7.2.1 Hydrologic/Hydraulic Modeling Results ............................................................... 7-3
7.2.2 Water Quality Modeling Results ............................................................................ 7-4
7.3 Implementation Considerations .......................................................................................... 7-5
7.3.1 Flood Protection Projects ....................................................................................... 7-6
7.3.1.1 Swimming Pool Pond (NC_3)/North Lake Cornelia (NC_62) ........... 7-6
7.3.1.2 Hibiscus Avenue (LE_53, LE_7, LE_10) .......................................... 7-6
7.3.1.3 6312, 6316, 6321, 6329 Tingdale Avenue (NC_11) .......................... 7-7
7.3.1.4 St. Johns/Ashcroft and West 64th Street (NC_40, NC_26) ................. 7-7
7.3.1.5 Barrie Road and Heritage Drive (NC_86, NC_97, NC_99) ............... 7-7
7.3.1.6 York Avenue and West 64th Street (NC_88) ...................................... 7-8
7.3.1.7 T.H. 62 at France Avenue (NC_132) ................................................. 7-8
7.3.1.8 Parnell Avenue and Valley View Road (NC_135) ............................. 7-8
7.3.2 Construction/Upgrade of Water Quality Basins..................................................... 7-9
7.3.2.1 LE_38 ................................................................................................. 7-9
7.3.2.2 NC_88 ................................................................................................ 7-9
8.0 Nine Mile Creek- South ................................................................................................................... 8-1
8.1 General Description of Drainage Area ................................................................................ 8-1
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8.1.1 Drainage Patterns ................................................................................................... 8-1
8.1.1.1 Centennial Lakes ................................................................................ 8-1
8.1.1.2 South Pond (Border Basin) ................................................................. 8-1
8.1.1.3 Nine Mile South ................................................................................. 8-2
8.2 Stormwater System Analysis and Results ........................................................................... 8-2
8.2.1 Hydrologic/Hydraulic Modeling Results ............................................................... 8-2
8.2.2 Water Quality Modeling Results ............................................................................ 8-4
8.3 Implementation Considerations .......................................................................................... 8-5
8.3.1 Flood Protection Projects ....................................................................................... 8-5
8.3.1.1 7001 & 7025 France Avenue (CL_51) ............................................... 8-5
8.3.2 Construction/Upgrade of Water Quality Basins..................................................... 8-6
8.3.2.1 West 77th Street & T.H. 100 ............................................................... 8-6
8.3.2.2 NMS_76 ............................................................................................. 8-6
8.3.2.3 NMS_104 ........................................................................................... 8-7
8.3.2.4 NMS_72 & NMS_74 .......................................................................... 8-7
8.3.2.5 SP_1 (South Pond/Border Basin) ....................................................... 8-7
9.0 Nine Mile South Fork ....................................................................................................................... 9-1
9.1 General Description of Drainage Area ................................................................................ 9-1
9.1.1 Drainage Patterns ................................................................................................... 9-1
9.1.1.1 Arrowhead Lake ................................................................................. 9-1
9.1.1.2 Indianhead Lake ................................................................................. 9-2
9.1.1.3 Pawnee Pond ...................................................................................... 9-2
9.1.1.4 Eden Prairie ........................................................................................ 9-2
9.1.1.5 Braemar Arena/Public Works ............................................................. 9-2
9.1.1.6 Nine Mile South Fork ......................................................................... 9-2
9.2 Stormwater System Analysis and Results ........................................................................... 9-3
9.2.1 Hydrologic/Hydraulic Modeling Results ............................................................... 9-3
9.2.2 Water Quality Modeling Results ............................................................................ 9-5
9.3 Implementation Considerations .......................................................................................... 9-5
9.3.1 Flood Protection Projects ....................................................................................... 9-6
9.3.1.1 6309 Post Lane (AH_31) .................................................................... 9-6
9.3.1.2 Braemar Golf Course (NMSB_62) ..................................................... 9-7
9.3.1.3 Paiute Pass & Sally Lane Intersection (NMSB_83, NMSB_84) ........ 9-7
9.3.1.4 7009 & 7013 Sally Lane Backyard Depression Area (NMSB_70) .... 9-7
9.3.2 Construction/Upgrade of Water Quality Basins..................................................... 9-7
9.3.2.1 NMSB_3 & NMSB_2 ........................................................................ 9-8
9.3.2.2 NMSB_12 ........................................................................................... 9-8
9.3.2.3 NMSB_86 ........................................................................................... 9-8
9.3.2.4 NMSB_7 ............................................................................................. 9-9
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9.3.2.5 NMSB_85 ........................................................................................... 9-9
10.0 Southwest Ponds (Dewey Hill Road Area) .................................................................................... 10-1
10.1 General Description of Drainage Area .............................................................................. 10-1
10.1.1 Drainage Patterns ................................................................................................. 10-1
10.1.1.1 Southwest Ponds ............................................................................... 10-1
10.1.1.2 Nine Mile 494 ................................................................................... 10-1
10.2 Stormwater System Analysis and Results ......................................................................... 10-2
10.2.1 Hydrologic/Hydraulic Modeling Results ............................................................. 10-2
10.2.2 Water Quality Modeling Results .......................................................................... 10-3
10.3 Implementation Considerations ........................................................................................ 10-4
10.3.1 Flood Protection Projects ..................................................................................... 10-5
10.3.1.1 7411 Coventry Way (SWP_14) ........................................................ 10-5
10.3.1.2 7317 Cahill Road (SWP_46) ............................................................ 10-5
10.3.1.3 7709 Stonewood Court (NM494_4) ................................................. 10-5
10.3.2 Construction/Upgrade of Water Quality Basins................................................... 10-6
11.0 T.H. 169 North ............................................................................................................................... 11-1
11.1 General Description of Drainage Area .............................................................................. 11-1
11.1.1 Drainage Patterns ................................................................................................. 11-1
11.2 Stormwater System Analysis and Results ......................................................................... 11-1
11.2.1 Hydrologic/Hydraulic Modeling Results ............................................................. 11-1
11.2.2 Water Quality Modeling Results .......................................................................... 11-3
11.3 Implementation Considerations ........................................................................................ 11-4
11.3.1 Flood Protection Projects ..................................................................................... 11-4
11.3.2 Construction/Upgrade of Water Quality Basins................................................... 11-4
12.0 Northeast Minnehaha Creek ........................................................................................................... 12-1
12.1 General Description of Drainage Area .............................................................................. 12-1
12.1.1 Drainage Patterns ................................................................................................. 12-1
12.1.1.1 Morningside ...................................................................................... 12-1
12.1.1.2 Minnehaha Creek North ................................................................... 12-1
12.1.1.3 Edina Country Club .......................................................................... 12-2
12.2 Stormwater System Analysis and Results ......................................................................... 12-2
12.2.1 Hydrologic/Hydraulic Modeling Results ............................................................. 12-2
12.2.2 Water Quality Modeling Results .......................................................................... 12-4
12.3 Implementation Considerations ........................................................................................ 12-5
12.3.1 Flood Protection Projects ..................................................................................... 12-5
12.3.1.1 4000 West 42nd Street and 4100, 4104, and 4108 France Avenue
(MS_40) ............................................................................................ 12-5
12.3.1.2 4308 France Avenue (MS_17) ......................................................... 12-6
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12.3.1.3 4300, 4214, and 4212 Branson Street (MS_3) ................................. 12-6
12.3.1.4 4140 and 4150 West 44th Street (MS_7) .......................................... 12-6
12.3.1.5 Arden Avenue (MHN_14) ................................................................ 12-7
12.3.2 Construction/Upgrade of Water Quality Basins................................................... 12-7
13.0 Southeast Minnehaha Creek ........................................................................................................... 13-1
13.1 General Description of Drainage Area .............................................................................. 13-1
13.1.1 Drainage Patterns ................................................................................................. 13-1
13.1.1.1 Lake Pamela ..................................................................................... 13-1
13.1.1.2 Minnehaha Creek South ................................................................... 13-1
13.1.1.3 Melody Lake ..................................................................................... 13-2
13.2 Stormwater System Analysis and Results ......................................................................... 13-2
13.2.1 Hydrologic/Hydraulic Modeling Results ............................................................. 13-2
13.2.2 Water Quality Modeling Results .......................................................................... 13-4
13.3 Implementation Considerations ........................................................................................ 13-5
13.3.1 Flood Protection Projects ..................................................................................... 13-5
13.3.1.1 6213 Ewing Avenue (LP_15) ........................................................... 13-5
13.3.1.2 3600 West Fuller Street (MHS_4) .................................................... 13-6
13.3.1.3 5605, 5609, 5613, 5617, 5621, 5625, and 5629 South Beard Avenue
(MHS_79) ......................................................................................... 13-6
13.3.1.4 5837, 5833, 5829, 5825 South Chowen Avenue (LP_24) ................ 13-7
13.3.1.5 Chowen Avenue and West 60th Street (LP_27) ............................... 13-7
13.3.1.6 5912, 5916, 5920, 5924, 5928 Ashcroft Avenue and 5925 Concord
Avenue (MHS_51) ........................................................................... 13-7
13.3.1.7 5840 and 5836 Ashcroft Avenue (MHS_89) .................................... 13-7
13.3.1.8 5609 and 5605 Dalrymple Road (MHS_24) and 5610 and 5612 St.
Andrews Avenue (MHS_66) ............................................................ 13-7
13.3.1.9 5701 Dale Avenue (ML_12) ............................................................ 13-8
13.3.1.10 5213 and 5217 Richwood Drive (ML_7) ......................................... 13-8
13.3.2 Construction/Upgrade of Water Quality Basins................................................... 13-8
13.3.3 Stream Improvement Projects .............................................................................. 13-8
13.3.3.1 Minnehaha Creek Reach 14 Stream Restoration .............................. 13-8
14.0 Northwest Minnehaha Creek .......................................................................................................... 14-1
14.1 General Description of Drainage Area .............................................................................. 14-1
14.1.1 Drainage Patterns ................................................................................................. 14-1
14.1.1.1 T.H. 100 ............................................................................................ 14-1
14.1.1.2 Hopkins ............................................................................................ 14-1
14.1.1.3 Interlachen ........................................................................................ 14-2
14.2 Stormwater System Analysis and Results ......................................................................... 14-2
14.2.1 Hydrologic/Hydraulic Modeling Results ............................................................. 14-2
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14.2.2 Water Quality Modeling Results .......................................................................... 14-4
14.3 Implementation Considerations ........................................................................................ 14-4
14.3.1 Flood Protection Projects ..................................................................................... 14-5
14.3.1.1 Interlachen Landlocked Area............................................................ 14-5
14.3.2 Construction/Upgrade of Water Quality Basins................................................... 14-5
15.0 Issues and Implementation Program .............................................................................................. 15-1
15.1 Water Quality/NPDES Phase II MS4 General Permit ...................................................... 15-1
15.1.1 NPDES Phase II MS4 Storm Water Pollution Prevention Program .................... 15-1
15.1.1.1 Public Education and Outreach ........................................................ 15-2
15.1.1.2 Public Involvement and Public Participation ................................... 15-2
15.1.1.3 Illicit Discharge Detection and Elimination ..................................... 15-3
15.1.1.4 Construction Site Stormwater Runoff Control ................................. 15-3
15.1.1.5 Post-Construction Stormwater Runoff Control ................................ 15-4
15.1.1.6 Pollution Prevention and Good Housekeeping Methods .................. 15-5
15.1.2 Nondegradation Report ........................................................................................ 15-6
15.1.3 Impaired Waters and TMDL Issues ..................................................................... 15-7
15.1.3.1 Nine Mile Creek ............................................................................... 15-9
15.1.3.2 Minnehaha Creek ............................................................................ 15-10
15.1.3.3 Lake Cornelia ................................................................................. 15-10
15.1.3.4 Lake Edina ...................................................................................... 15-10
15.1.3.5 Other Downstream Waterbodies .................................................... 15-11
15.2 Specific MCWD Tasks/Issues ......................................................................................... 15-11
15.2.1 Phosphorus Load Reduction .............................................................................. 15-11
15.2.1.1 Pamela Park Water Quality Improvement Project.......................... 15-12
15.2.1.2 Underground Stormwater Treatment Structures and Sump Manholes15-13
15.2.1.3 Street Sweeping .............................................................................. 15-13
15.2.1.4 Impervious Surface Reduction ....................................................... 15-14
15.2.2 Landlocked Basins ............................................................................................. 15-14
15.2.2.1 White Oaks Landlocked Area ......................................................... 15-14
15.2.2.2 Interlachen Landlocked Area.......................................................... 15-15
15.2.3 Flooding or Modeled High Water Locations ..................................................... 15-15
15.2.3.1 Kresse Circle .................................................................................. 15-15
15.2.3.2 Minnehaha Creek at West 58th Street ............................................. 15-15
15.2.3.3 Utility Bridge in Arden Park .......................................................... 15-16
15.2.4 Flow Velocity and Erosion................................................................................. 15-16
15.2.4.1 Downstream of 50th Street .............................................................. 15-16
15.2.4.2 Storm Sewer Discharge North of Pamela Park .............................. 15-17
15.2.4.3 Storm Sewer Outfall to Ditch North of Pamela Park ..................... 15-17
15.2.5 Potential Capital Projects and Other Issues ....................................................... 15-17
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15.2.6 Housekeeping Requirements .............................................................................. 15-17
15.3 Specific NMCWD Tasks/Issues ...................................................................................... 15-18
15.3.1 Use Attainability Analyses ................................................................................. 15-18
15.3.1.1 Mirror Lake Use Attainability Analysis ......................................... 15-18
15.3.1.2 Arrowhead and Indianhead Lakes Use Attainability Analysis ....... 15-18
15.3.1.3 Lake Cornelia Use Attainability Analysis ...................................... 15-19
15.3.2 Water Quality Improvement Projects ................................................................. 15-19
15.4 Financial Considerations ................................................................................................. 15-19
15.5 Plan Update and Amendment Procedure ........................................................................ 15-20
15.6 Regulatory Framework and Agency Responsibilities ..................................................... 15-21
15.6.1 City of Edina ...................................................................................................... 15-21
15.6.2 Watershed Management Organizations ............................................................. 15-23
15.6.2.1 Minnehaha Creek Watershed District ............................................. 15-23
15.6.2.2 Nine Mile Creek Watershed District .............................................. 15-25
15.6.3 The Metropolitan Council .................................................................................. 15-25
15.6.4 Hennepin County ............................................................................................... 15-26
15.6.5 Minnesota Department of Natural Resources .................................................... 15-26
15.6.6 Minnesota Board of Water and Soil Resources ................................................. 15-27
15.6.7 Minnesota Pollution Control Agency (MPCA) .................................................. 15-27
15.6.8 Minnesota Department of Health ....................................................................... 15-28
15.6.9 Minnesota Environmental Quality Board (EQB) ............................................... 15-28
15.6.10 Minnesota Department of Transportation (Mn/DOT) ........................................ 15-29
15.6.11 U.S. Army Corps of Engineers (COE) ............................................................... 15-29
15.7 Implementation Priorities ................................................................................................ 15-30
16.0 Wetlands ......................................................................................................................................... 16-1
16.1 City of Edina Wetlands Inventory- 1999 .......................................................................... 16-1
16.1.1 Delineation ........................................................................................................... 16-1
16.1.2 Dominant Vegetation ........................................................................................... 16-2
16.1.3 Wetland Functional Assessment .......................................................................... 16-2
16.1.3.1 Hydrology ......................................................................................... 16-2
16.1.3.2 Vegetative Diversity ......................................................................... 16-2
16.1.3.3 Wildlife Habitat ................................................................................ 16-3
16.1.3.4 Fishery Habitat ................................................................................. 16-3
16.1.3.5 Flood/Stormwater Attenuation ......................................................... 16-3
16.1.3.6 Water Quality Protection .................................................................. 16-3
16.1.3.7 Shoreline Protection ......................................................................... 16-3
16.1.3.8 Aesthetics/Recreation/Education and Science .................................. 16-4
16.1.4 Wetland Sensitivity to Stormwater Input ............................................................. 16-4
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16.2 MCWD Functional Assessment of Wetlands – 2003 ........................................................ 16-7
16.2.1 Delineation and Inventory .................................................................................... 16-7
16.2.2 Critical Wetland Resources .................................................................................. 16-7
16.2.3 Wetland Susceptibility to Stormwater ................................................................. 16-8
16.2.4 Wetland Management Classification ................................................................... 16-8
16.3 Circular 39 Wetland Classification ................................................................................... 16-8
16.3.1.1 Type 1: Seasonally Flooded Basin, Floodplain Forest ..................... 16-8
16.3.1.2 Type 2: Wet Meadow, Fresh Wet Meadow, Wet to Wet-Mesic Prairie,
Sedge Meadow, and Calcareous Fen ................................................ 16-9
16.3.1.3 Type 3: Shallow Marsh .................................................................... 16-9
16.3.1.4 Type 4: Deep Marsh ......................................................................... 16-9
16.3.1.5 Type 5: Shallow Open Water ........................................................... 16-9
16.3.1.6 Type 6: Shrub Swamp; Shrub Carr, Alder Thicket .......................... 16-9
16.3.1.7 Type 7: Wooded Swamps; Hardwood Swamp, Coniferous Swamp16-10
16.4 Cowardin Wetland Classification ................................................................................... 16-10
16.4.1.1 System ............................................................................................ 16-10
16.4.1.2 Subsystem ....................................................................................... 16-11
16.4.1.3 Class, Subclass ............................................................................... 16-11
16.4.1.4 Water Regime ................................................................................. 16-12
16.4.1.5 Special Modifiers ............................................................................ 16-13
16.5 Public Waters .................................................................................................................. 16-14
17.0 References ...................................................................................................................................... 17-1
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List of Tables
Table 1.1 Water Resources Implementation Program ................................................................. 1-5
Table 1.2 Potential Implementation Activities (including Capital Improvements) ...................... 1-8
Table 2.1 Historic Summer-average Total Phosphorus Concentrations for Edina Lakes ............. 2-5
Table 2.2 Fishery and Aquatic Invasive Species Information ..................................................... 2-7
Table 4.1 Land Use Impervious Fraction Assumptions for Hydrologic Modeling ...................... 4-3
Table 4.2 Horton Infiltration Parameters .................................................................................... 4-5
Table 4.3 Roughness Coefficient Assumptions ........................................................................... 4-6
Table 4.4 Land Use Impervious Fraction Assumptions for Water Quality Modeling .................. 4-9
Table 4.5 Infiltration Assumptions for Water Quality Modeling .............................................. 4-11
Table 5.1 Major Watersheds within the Nine Mile Creek—North Drainage Basin ..................... 5-1
Table 5.2 Watershed Modeling Results for Subwatersheds in the Nine Mile Creek—North
Drainage Basin ......................................................................................................... 5-12
Table 5.3 Hydraulic Modeling Results for XP-SWMM Subwatersheds/Nodes in the Nine Mile
Creek—North Drainage Basin .................................................................................. 5-18
Table 5.4 Conduit Modeling Results for Subwatersheds in the Nine Mile Creek—North Drainage
Basin ......................................................................................................................... 5-26
Table 6.1 Major Watersheds within the Nine Mile Creek—Central Drainage Basin ................... 6-1
Table 6.2 Watershed Modeling Results for Subwatersheds in the Nine Mile Creek—Central
Drainage Basin ........................................................................................................... 6-9
Table 6.3 Hydraulic Modeling Results for XP-SWMM Subwatersheds/Nodes in the Nine Mile
Creek—Central Drainage Basin ................................................................................ 6-12
Table 6.4 Conduit Modeling Results for Subwatersheds in the Nine Mile Creek—Central
Drainage Basin ......................................................................................................... 6-17
Table 7.1 Major Watersheds within the Lake Cornelia/Lake Edina/Adam’s Hill Drainage Basin7-1
Table 7.2 Watershed Modeling Results for Subwatersheds in the Lake Cornelia/Lake
Edina/Adam’s Hill Drainage Area ............................................................................ 7-10
Table 7.3 Hydraulic Modeling Results for XP-SWMM Subwatersheds/Nodes in the Lake
Cornelia/Lake Edina/Adam’s Hill Drainage Area ..................................................... 7-16
Table 7.4 Conduit Modeling Results for Subwatersheds in the Lake Cornelia/Lake Edina/Adam’s
Hill Drainage Area .................................................................................................... 7-25
Table 8.1 Major Watersheds within the Nine Mile Creek—South Drainage Basin ..................... 8-1
Table 8.2 Watershed Modeling Results for Subwatersheds in the Nine Mile Creek—South
Drainage Basin ........................................................................................................... 8-8
Table 8.3 Hydraulic Modeling Results for XP-SWMM Subwatersheds/Nodes in the Nine Mile
Creek—South Drainage Basin .................................................................................. 8-12
Table 8.4 Conduit Modeling Results for Subwatersheds in the Nine Mile Creek—South Drainage
Basin ......................................................................................................................... 8-19
Table 9.1 Major Watersheds within the Nine Mile South Fork Drainage Basin .......................... 9-1
Table 9.2 Watershed Modeling Results for Subwatersheds in the Nine Mile South Fork Drainage
Basin ......................................................................................................................... 9-10
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Table 9.3 Hydraulic Modeling Results for XP-SWMM Subwatersheds/Nodes in the Nine Mile
South Fork Drainage Basin ....................................................................................... 9-14
Table 9.4 Conduit Modeling Results for Subwatersheds in the Nine Mile South Fork Drainage
Basin ......................................................................................................................... 9-19
Table 10.1 Major Watersheds within the Southwest Ponds Drainage Basin ............................... 10-1
Table 10.2 Watershed Modeling Results for Subwatersheds in the Southwest Ponds Drainage
Basin ......................................................................................................................... 10-7
Table 10.3 Hydraulic Modeling Results for XP-SWMM Subwatersheds/Nodes in the Southwest
Ponds Drainage Basin ............................................................................................... 10-9
Table 10.4 Conduit Modeling Results for Subwatersheds in the Southwest Ponds Drainage Basin10-13
Table 11.1 Major Watershed within the T.H. 169 North Drainage Area ..................................... 11-1
Table 11.2 Watershed Modeling Results for Subwatersheds in the T.H. 169 North Drainage Basin11-6
Table 11.3 Hydraulic Modeling Results for XP-SWMM Subwatersheds/Nodes in the T.H. 169
North Drainage Basin ............................................................................................... 11-7
Table 11.4 Conduit Modeling Results for Subwatersheds in the T.H. 169 North Drainage Basin11-8
Table 12.1 Major Watersheds within the Northeast Minnehaha Creek Drainage Basin .............. 12-1
Table 12.2 Watershed Modeling Results For Subwatersheds n the Northeast Minnehaha Creek
Drainage Basin ......................................................................................................... 12-8
Table 12.3 Hydraulic Modeling Results for XP-SWMM Subwatersheds/Nodes in the Northeast
Minnehaha Creek Drainage Basin ........................................................................... 12-12
Table 12.4 Conduit Modeling Results for Subwatersheds in the Northeast Minnehaha Creek
Drainage Basin ....................................................................................................... 12-19
Table 13.1 Major Watersheds within the Southeast Minnehaha Creek Drainage Basin .............. 13-1
Table 13.2 Watershed Modeling Results For Subwatersheds n the Southeast Minnehaha Creek
Drainage Basin ......................................................................................................... 13-9
Table 13.3 Hydraulic Modeling Results for XP-SWMM Subwatersheds/Nodes in the Southeast
Minnehaha Creek Drainage Basin ........................................................................... 13-13
Table 13.4 Conduit Modeling Results for Subwatersheds in the Southeast Minnehaha Creek
Drainage Basin ....................................................................................................... 13-19
Table 14.1 Major Watersheds within the Northwest Minnehaha Creek Drainage Basin ............. 14-1
Table 14.2 Watershed Modeling Results For Subwatersheds n the Northwest Minnehaha Creek
Drainage Basin ......................................................................................................... 14-7
Table 14.3 Hydraulic Modeling Results for XP-SWMM Subwatersheds/Nodes in the Northwest
Minnehaha Creek Drainage Basin ............................................................................. 14-9
Table 14.4 Conduit Modeling Results for Subwatersheds in the Northwest Minnehaha Creek
Drainage Basin ....................................................................................................... 14-13
Table 15.1 City of Edina Waters on MPCA’s 303(d) Impaired Waters List ............................... 15-9
Table 15.2 Potential Funding Sources for Plan Implementation ............................................... 15-20
Table 15.3 Water Resources Implementation Program ............................................................. 15-31
Table 15.4 Potential Implementation Activities (including Capital Improvements) .................. 15-34
Table 16.1 Susceptibility of Wetlands to Degradation by Stormwater Impacts .......................... 16-5
Table 16.2 Management Recommendations for Each Wetland Sensitivity Classification ........... 16-6
Table 16.3 MnDNR Protected Waters and Wetlands within Edina ........................................... 16-14
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List of Figures
Figure 2.1 Major Drainage Areas ................................................................................................. 2-9
Figure 2.2 Edina Soils Classification ......................................................................................... 2-10
Figure 2.3 Water Quality Monitoring Stations ........................................................................... 2-11
Figure 2.4 Edina Parks and Recreational Areas ......................................................................... 2-12
Figure 2.5 Threatened and Endangered Species ......................................................................... 2-13
Figure 2.6 Pollutant Sources ...................................................................................................... 2-14
Figure 5.1 Nine Mile Creek—North Drainage Basin ................................................................. 5-35
Figure 5.2 Nine Mile Creek—North Major Watersheds ............................................................. 5-36
Figure 5.3 Nine Mile Creek—North Hydraulic Model Results .................................................. 5-37
Figure 5.4 Nine Mile Creek—North Water Quality Modeling Results ....................................... 5-38
Figure 6.1 Nine Mile Creek—Central Drainage Basin ............................................................... 6-22
Figure 6.2 Nine Mile Creek—Central Major Watersheds........................................................... 6-23
Figure 6.3 Nine Mile Creek—Central Hydraulic Model Results ................................................ 6-24
Figure 6.4 Nine Mile Creek—Central Water Quality Modeling Results .................................... 6-25
Figure 7.1 Lake Cornelia/Lake Edina/Adam’s Hill Drainage Basin ........................................... 7-35
Figure 7.2 Lake Cornelia/Lake Edina/Adam’s Hill Major Watersheds ...................................... 7-36
Figure 7.3 Lake Cornelia/Lake Edina/Adam’s Hill Hydraulic Model Results ............................ 7-37
Figure 7.4 Lake Cornelia/Lake Edina/Adam’s Hill Water Quality Modeling Results ................ 7-38
Figure 8.1 Nine Mile Creek—South Drainage Basin ................................................................. 8-26
Figure 8.2 Nine Mile Creek—South Major Watersheds ............................................................. 8-27
Figure 8.3 Nine Mile Creek—South Hydraulic Model Results .................................................. 8-28
Figure 8.4 Nine Mile Creek—South Water Quality Modeling Results ....................................... 8-29
Figure 9.1 Nine Mile South Fork Drainage Basin ...................................................................... 9-25
Figure 9.2 Nine Mile South Fork Major Watersheds .................................................................. 9-26
Figure 9.3 Nine Mile South Fork Hydraulic Model Results ....................................................... 9-27
Figure 9.4 Nine Mile South Fork Water Quality Modeling Results ........................................... 9-28
Figure 10.1 Southwest Ponds Drainage Basin ............................................................................ 10-16
Figure 10.2 Southwest Ponds Major Watersheds ....................................................................... 10-17
Figure 10.3 Southwest Ponds Hydraulic Model Results ............................................................. 10-18
Figure 10.4 Southwest Ponds Water Quality Modeling Results ................................................. 10-19
Figure 11.1 T.H. 169 North Drainage Basin ................................................................................ 11-9
Figure 11.2 T.H. 169 North Major Watersheds .......................................................................... 11-10
Figure 11.3 T.H. 169 North Water Quality Modeling Results .................................................... 11-11
Figure 12.1 Northeast Minnehaha Creek Drainage Basin ........................................................... 12-23
Figure 12.2 Northeast Minnehaha Creek Major Watersheds ...................................................... 12-24
Figure 12.3 Northeast Minnehaha Creek Hydraulic Model Results ............................................ 12-25
Figure 12.4 Northeast Minnehaha Creek Water Quality Modeling Results ................................ 12-26
Figure 13.1 Southeast Minnehaha Creek Drainage Basin ........................................................... 13-24
Figure 13.2 Southeast Minnehaha Creek Major Watersheds ...................................................... 13-25
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Figure 13.3 Southeast Minnehaha Creek Hydraulic Model Results............................................ 13-26
Figure 13.4 Southeast Minnehaha Creek Water Quality Modeling Results ................................ 13-27
Figure 14.1 Northwest Minnehaha Creek Drainage Basin .......................................................... 14-16
Figure 14.2 Northwest Minnehaha Creek Major Watersheds ..................................................... 14-17
Figure 14.3 Northwest Minnehaha Creek Hydraulic Model Results .......................................... 14-18
Figure 14.4 Northwest Minnehaha Creek Water Quality Modeling Results ............................... 14-19
Figure 15.1 Minnehaha Creek Watershed District Key Conservation Areas .............................. 15-38
Figure 15.2 Minnehaha Creek Watershed District Key Conservation Areas .............................. 15-39
Figure 16.1 Wetlands within the City of Edina .......................................................................... 16-16
Figure 16.2 Wetlands Classification .......................................................................................... 16-17
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List of Appendices
Appendix A Storm Water Pollution Prevention Program for the Management of Municipal
Separate Storm Sewer Systems within the City of Edina
Appendix B Nondegradation Report
Appendix C 2010-2019 Anticipated Local Bituminous Street Reconstruction Projects
Appendix D Modified Minnesota Routine Assessment Method for Evaluating Wetland Functions
(MNRAM) Version 2.0
Appendix E GIS Wetlands Inventory Database
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List of Acronyms
BMPs Best Management Practices
BWSR Minnesota Board of Water & Soil Resources
CAMP Citizen Assisted Monitoring Program
CD County Ditch
CFS Cubic Feet per Second
CIP Capital Improvement Program
COE United States Army Corps of Engineers
CWA Clean Water Act
CWRMP Comprehensive Water Resources Management Plan
DNR Minnesota Department of Natural Resources
DWSMA Drinking Water Supply Management Areas
EAW Environmental Assessment Worksheet
EIS Environmental Impact Statement
EPA United States Environmental Protection Agency
EQB Environmental Quality Board
FAW Functional Assessment of Wetlands (MCWD)
FEMA Federal Emergency Management Agency
FIN Fishing in the Neighborhood
GIS Geographic Information Systems
HCWI Hennepin County Wetland Inventory
IBI Index of Biotic Integrity
ISTS Individual Sewage Treatment Systems
LA Load Allocation
LGU Local Government Unit
MCWD Minnehaha Creek Watershed District
MDH Minnesota Department of Health
MEP Maximum Extent Practicable
MnRAM Minnesota Routine Assessment Method
Mn/DOT Minnesota Department of Transportation
MPCA Minnesota Pollution Control Agency
MS4 Municipal Separate Storm Sewer System
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MSL Mean Sea Level
MUSA Metropolitan Urban Service Area
NMCWD Nine Mile Creek Watershed District
NPDES National Pollutant Discharge Elimination System
NRCS Natural Resources Conservation Service
NURP Nationwide Urban Runoff Program
NWI National Wetlands Inventory
NWL Normal Water Level
OHWL Ordinary High Water Level
PWI Public Waters Inventory
SCS Soil Conservation Service
SHSAM Sizing hydrodynamic Separators and Manholes
SWMM Storm Water Management Model
SWPPP Storm Water Pollution Prevent Plan/Program
TBD To Be Determined
TIF Tax Increment Financing
TMDL Total Maximum Daily Load
TP Total Phosphorus
TSS Total Suspended Solids
UAA Use Attainability Analysis
USFWS United States Fish and Wildlife Service
VIC Voluntary Investigation and Clean-up
VOC Volatile Organic Compound
WCA Wetland Conservation Act
WLA Waste Load Allocation
WMO Watershed Management Organization