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Open House Open House This meeting is subject to the This meeting - - PDF document

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


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SLIDE 1

2/25/2009 1

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

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SLIDE 2

2/25/2009 2

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

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SLIDE 3

2/25/2009 3

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

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SLIDE 4

2/25/2009 4

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 Run Deadmans Deadmans 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 Goal - Develop long 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

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SLIDE 5

2/25/2009 5

Team Leaders Team Leaders

Project Team Project Team

Engineering Consulting Team Engineering Consulting Team

Heartland Center for

Other Agency Team Members Other Agency Team Members

Lincoln & Lancaster County Planning Department Lincoln & Lancaster County Planning Department

Heartland Center for Leadership Development

Little Salt Creek Watershed Master Plan Little Salt Creek Watershed Master Plan Major Study Components Major Study Components

Watershed Watershed Master Plan Master Plan

Stream Stability Stream Stability Floodplain Floodplain Mapping Mapping Public Public Involvement Involvement Watershed Watershed Inventory Inventory Natural Natural Resources Resources y Resources Resources Water Quality Water Quality Soil Soil Assessment Assessment

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SLIDE 6

2/25/2009 6

Public Involvement Public Involvement

  • Open Houses

Open Houses N l tt N l tt

  • Newsletters

Newsletters

  • 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 G H ll i h H ll i h

  • Gene Petersen

Gene Petersen D id P tt D id P tt

  • Gary

Gary Hellerich Hellerich

  • Don

Don Helmuth Helmuth

  • Chris

Chris Helzer Helzer

  • Larry

Larry Hudkins Hudkins

  • Merle

Merle Jahde Jahde

  • David Potter

David Potter

  • Harold Roper

Harold Roper

  • Dave Sands

Dave Sands

  • John

John Schleich Schleich

  • Vicky Wheeler

Vicky Wheeler

  • Susan

Susan Kuck Kuck

  • Jack Nagel

Jack Nagel

  • Harold Roper

Harold Roper y

  • Mark Whitehead

Mark Whitehead

  • Doug Emery

Doug Emery

  • Don Linscott

Don Linscott

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SLIDE 7

2/25/2009 7

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

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SLIDE 8

2/25/2009 8

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

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SLIDE 9

2/25/2009 9

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 – Tiger Beetle Tiger Beetle

  • Streams/Waterways

Streams/Waterways

USDA

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SLIDE 10

2/25/2009 10

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 S li S li Sampling Sampling

– 6 sites 6 sites

  • Previous Water

Previous Water Quality Sampling Quality Sampling

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SLIDE 11

2/25/2009 11

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 – – Saline wetlands and Saline wetlands and

Incising stream

seeps seeps – Salt Creek Tiger Salt Creek Tiger Beetle habitat Beetle habitat

Observed seep

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SLIDE 12

2/25/2009 12

Rural Rural

Watershed Watershed Characteristics Characteristics

– – 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

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2/25/2009 13

Capital Capital Improvement Improvement Projects Projects

  • 18 Stream

18 Stream Stability Capital Stability Capital Improvement Improvement Projects Projects

– 10 Grade Controls 10 Grade Controls 10 Grade Controls 10 Grade Controls – 8 Stilling Basins 8 Stilling Basins

Bridge & Bridge & Culvert Culvert Projects Projects

  • 6 Bridge & Culvert

6 Bridge & Culvert Projects Projects

  • 4 Bridge

4 Bridge Replacements Replacements 2 C l ert 2 C l ert

  • 2 Culvert

2 Culvert Replacements Replacements

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2/25/2009 14

Riparian Riparian Corridor Corridor Enhancement Enhancement

  • Watershed

Watershed Management Management Program Program

  • Implemented

Implemented using existing using existing using existing using existing programs programs

Natural Resource Natural Resource Opportunities Opportunities

  • Natural Resource Opportunities

Natural Resource Opportunities

– – Wetland Enhancement Wetland Enhancement – Wetland Creation Wetland Creation – Habitat Enhancement Habitat Enhancement

USDA

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SLIDE 15

2/25/2009 15

Drainage Criteria and Drainage Criteria and Ordinance Review Ordinance Review

  • Water Quality BMPs

Water Quality BMPs

  • Water Quality BMPs

Water Quality BMPs

  • Dispersive Soils

Dispersive Soils Testing Testing

  • Conservation Culverts

Conservation Culverts

  • Adopt

Adopt Floodprone Floodprone

Water Quality BMP

Area and Floodway as Area and Floodway as Best Available Best Available Information Information

Conservation Culvert

Little Salt Creek Watershed Master Plan Little Salt Creek Watershed Master Plan Project Timeline Project Timeline

TASKS

2008 2009

Feb Mar Apr May June July Aug Sept Oct Nov Dec Jan Feb Mar Apr May June July Aug Sept Oct Nov Feb Mar Apr May June July Aug Sept Oct Nov Dec Jan Feb Mar Apr May June July Aug Sept Oct Nov

Floodplain Mapping Data Gathering & Analysis Master Plan Report Development p Open Houses Citizens Advisory Committee Meetings

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2/25/2009 16

Information Stations Information Stations

  • Five Information Stations

Five Information Stations

1 1 Floodplain Mapping Floodplain Mapping 1.

  • 1. Floodplain Mapping

Floodplain Mapping 2.

  • 2. Capital Improvement Projects (CIP)

Capital Improvement Projects (CIP) 3.

  • 3. Water Quality & Bio

Water Quality & Bio-

  • Assessment

Assessment 4.

  • 4. Public Involvement

Public Involvement 5.

  • 5. Interactive Watershed Mapping Station

Interactive Watershed Mapping Station

  • Visit with Project Team Staff

Visit with Project Team Staff

  • Ask Questions

Ask Questions

  • Comment Cards

Comment Cards