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2/25/2009 Little Salt Creek Little Salt Creek Watershed Master Plan Watershed Master Plan Open House Open House February 24, 2009 February 24, 2009 Open House Open House This meeting is subject to the This meeting is subject to the


  1. 2/25/2009 Little Salt Creek Little Salt Creek Watershed Master Plan Watershed Master Plan Open House Open House February 24, 2009 February 24, 2009 Open House Open House This meeting is subject to the This meeting is subject to the provisions of the Nebraska provisions of the Nebraska Open Meeting Act Open Meeting Act 1

  2. 2/25/2009 Open House Open House • Second of two open houses. Second of two open houses. • First open house was held on First open house was held on April 22, 2008. April 22, 2008. – Lincoln North Star High School Lincoln North Star High School Open House Format Open House Format • Formal Presentation (15 minutes) Formal Presentation (15 minutes) • Informal Stations Following Formal Informal Stations Following Formal Presentation Presentation – Visit with Project Team Staff Visit with Project Team Staff – Ask Specific Questions Ask Specific Questions 2

  3. 2/25/2009 Tonight's Agenda Tonight's Agenda • Introduction Introduction • Purpose of Watershed Master Plan Purpose of Watershed Master Plan • Study Goals and Objectives Study Goals and Objectives • Information Stations Information Stations Lincoln Watershed Management/ Lincoln Watershed Management/ NRD Partnership NRD Partnership • Minimize Flood Damage Minimize Flood Damage • Control Erosion & Control Erosion & Control Erosion & Control Erosion & Sedimentation Sedimentation • Preserve Watershed Preserve Watershed Resources Resources – Water Quality Water Quality – Stream Stability Stream Stability – Riparian Habitat Riparian Habitat • Encourage Sustainable Encourage Sustainable Growth Growth …Ensuring Quality of Life for Future Generations …Ensuring Quality of Life for Future Generations 3

  4. 2/25/2009 Watershed Master Planning Watershed Master Planning • City/NRD Planning City/NRD Planning Effort Effort • Watershed Master Watershed Master Plans Completed Plans Completed – Beal Slough Beal Slough – SE Upper Salt Creek SE Upper Salt Creek – Stevens Creek Stevens Creek – Cardwell Branch Cardwell Branch – Deadmans Deadmans Run Deadmans Deadmans Run Run Run • Overall Goals Overall Goals – Unified Master Plan Unified Master Plan – Integrate Public Input Integrate Public Input Little Salt Creek Watershed Master Plan Little Salt Creek Watershed Master Plan Goals & Objectives Goals & Objectives Goal - Develop long Goal Develop long- -term planning tools and improvement term planning tools and improvement projects to address water quality, flood management, and projects to address water quality, flood management, and stream stability and provide guidance for sustainable stream stability and provide guidance for sustainable stream stability and provide guidance for sustainable stream stability and provide guidance for sustainable urban growth in the watershed urban growth in the watershed Study Objectives Study Objectives • Maintain a Proactive Stakeholder and Public Involvement Maintain a Proactive Stakeholder and Public Involvement process process • Update Floodplain and Floodway Maps Update Floodplain and Floodway Maps • Identify Flooding, Erosion, and/or Water Quality Problems Identify Flooding, Erosion, and/or Water Quality Problems Identify Flooding, Erosion, and/or Water Quality Problems Identify Flooding, Erosion, and/or Water Quality Problems • Consider Critical Habitat and Rare or Sensitive Consider Critical Habitat and Rare or Sensitive Environmental Resources Environmental Resources • Develop Guidelines and Recommendations for Future Develop Guidelines and Recommendations for Future Development Development • Identify Potential Funding Sources for Future Studies Identify Potential Funding Sources for Future Studies and/or Projects and/or Projects 4

  5. 2/25/2009 Project Team Project Team Team Leaders Team Leaders Engineering Consulting Team Engineering Consulting Team Heartland Center for Heartland Center for Leadership Development Other Agency Team Members Other Agency Team Members Lincoln & Lancaster County Planning Department Lincoln & Lancaster County Planning Department Little Salt Creek Watershed Master Plan Little Salt Creek Watershed Master Plan Major Study Components Major Study Components Public Public Involvement Involvement Watershed Watershed Floodplain Floodplain Inventory Inventory Mapping Mapping Watershed Watershed Natural Natural Master Plan Master Plan Stream Stability Stream Stability y Resources Resources Resources Resources Soil Soil Water Quality Water Quality Assessment Assessment 5

  6. 2/25/2009 Public Involvement Public Involvement • Open Houses Open Houses • Newsletters N N Newsletters l tt l tt • Website Website www.lincoln.ne.gov www.lincoln.ne.gov Keyword “watershed” Keyword “watershed” • Citizens Advisory Citizens Advisory Committee (CAC) Committee (CAC) Citizens Advisory Committee Citizens Advisory Committee • David Grimes David Grimes • Gene Petersen Gene Petersen • Gary Gary Hellerich G H ll H ll Hellerich i h i h • David Potter David Potter D D id P tt id P tt • Don Don Helmuth Helmuth • Harold Roper Harold Roper • Chris Chris Helzer Helzer • Dave Sands Dave Sands • Larry Larry Hudkins Hudkins • John John Schleich Schleich • Merle Merle Jahde Jahde • Vicky Wheeler Vicky Wheeler y • Susan Susan Kuck Kuck • Mark Whitehead Mark Whitehead • Jack Nagel Jack Nagel • Doug Emery Doug Emery • Harold Roper Harold Roper • Don Linscott Don Linscott 6

  7. 2/25/2009 Watershed Inventory Watershed Inventory • Collect, Compile Collect, Compile and Evaluate and Evaluate Existing Watershed Existing Watershed Data Data • Geographic Geographic Information System Information System Format (GIS) Format (GIS) • Study Data • Study Data Study Data Study Data Collected in GIS Collected in GIS Format Format Floodplain Mapping Floodplain Mapping • Mapped in Early 1980s Mapped in Early 1980s • Develop Maps Using • Develop Maps Using Develop Maps Using Develop Maps Using Latest Technology Latest Technology – Computer Models Computer Models – GIS Format Output GIS Format Output 7

  8. 2/25/2009 Floodplain Floodplain Mapping Mapping • Floodprone Floodprone Area Area Updated Updated • Floodway Floodway Delineated Delineated • Adopt Adopt Floodprone Floodprone Area and Floodway Area and Floodway Area and Floodway Area and Floodway as Best Available as Best Available Information Information Stream Stability Stream Stability • Geomorphic Data Geomorphic Data Collection Collection Collection Collection • Stream Stream Characteristics Characteristics • Identify Potential Identify Potential Future Stream Future Stream Characteristics Characteristics Characteristics Characteristics 8

  9. 2/25/2009 Stream Stability Stream Stability Dominant Process Dominant Process Five Dominant Processes 1. Dynamic Equilibrium 2. Incision 3. Widening 4. Plan Form Adjustment 5. Managed Swale and Pond Natural Resources Natural Resources • Agriculture Agriculture – Cropland Cropland Cropland Cropland – Pasture Pasture – Native Prairie Native Prairie • Environmental Environmental – Saline Wetlands Saline Wetlands – Saltwort Saltwort Saltwort Saltwort USDA – Tiger Beetle Tiger Beetle • Streams/Waterways Streams/Waterways 9

  10. 2/25/2009 Seep Elevation Seep Elevation Survey Survey • 5 Survey Sites 5 Survey Sites • Data Collected Data Collected – Seep elevation Seep elevation – Top of bank Top of bank Top of bank Top of bank – Toe of slope Toe of slope – Water surface Water surface – Lowest point is Lowest point is channel channel Water Quality Water Quality • Water Quality Water Quality Sampling Sampling – 10 sites 10 sites • Bio Bio- -Assessment Assessment Sampling Sampling S S li li – 6 sites 6 sites • Previous Water Previous Water Quality Sampling Quality Sampling 10

  11. 2/25/2009 Soil Soil Assessment Assessment • Field Sample Field Sample • Laboratory Laboratory Testing Results Testing Results – Slightly Dispersive Slightly Dispersive Watershed Characteristics Watershed Characteristics – – Incising streams Incising streams Incising streams Incising streams – – Poor water quality Poor water quality – – Dispersive and Dispersive and highly erosive soils highly erosive soils Incising stream – – Saline wetlands and Saline wetlands and seeps seeps – Salt Creek Tiger Salt Creek Tiger Beetle habitat Beetle habitat Observed seep 11

  12. 2/25/2009 Watershed Watershed Characteristics Characteristics – – Rural Rural Rural Rural watershed, watershed, primarily primarily agricultural agricultural – Approximately Approximately 1200 acres in 1200 acres in 1200 acres in 1200 acres in Lincoln’s Lincoln’s future service future service limit (Tier I). limit (Tier I). Watershed Master Plan Watershed Master Plan Recommendations Recommendations • Capital Improvement Projects (CIPs) Capital Improvement Projects (CIPs) Capital Improvement Projects (CIPs) Capital Improvement Projects (CIPs) • Bridge & Culvert Projects Bridge & Culvert Projects • Riparian Corridor Enhancement Riparian Corridor Enhancement • Natural Resource Opportunities Natural Resource Opportunities 12

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