Lynn Creek Watershed Master Plan
May 2018
Documents in PDF format. 
Cover and Table of Contents (614 K)
Executive Summary (744 M)
Section 3 – Geomorphic Evaluation (1.08 M)
Section 4 – Hydrology and Hydraulics (1.76 M)
Section 5 – Land Use and Development (1.69 M)
Section 6 – Minimum Stream Corridor (2.52 M)
Section 7 – Special Areas (1.45 M)
Section 8 – Capital Improvement Projects (6.71 M)
- 8.1 Introduction
- 8.2 Problem Identification
- 8.3 Evaluation Approach
- 8.4 Capital Improvement Projects
- 8.4.1 Project LC-01: Grade Control Undermining Perched Adams St Culvert Outfall on Mainstem LCR005
- 8.4.2 Project LC-02: Grade Control Incision on Mainstem LCR005 and Side Tributary
- 8.4.3 Project LC-03: Grade Control Incision on Tributary LC005R005
- 8.4.4 Project LC-04: Roper Park Trail Relocation and Bank Stabilization on Mainstem LCR005
- 8.4.5 Project LC-05: Grade Control Scour at NW 1st St Culvert Outfall on Mainstem LCR010
- 8.4.6 Project LC-06: Grade Control Incising Drainage Ditch at NW 1st St Culvert on Mainstem LCR015
- 8.4.7 Project LC-07: Grade Control Incision on Tributary LC020R005
- 8.5 Prioritization
- 8.6 Other Improvement Recommendations
- 8.6.1 Project Other-01: Monitor Incision at Interstate 180 Crossing on Mainstem LCR005
- 8.6.2 Project Other-02: Monitor Bank Stabilization on Mainstem LCR005 at Roper Park Trail Bridge
- 8.6.3 Project Other-03: Monitor Erosion at Superior St Culvert Upstream East Wingwall on Mainstem LCR010
- 8.6.4 Project Private-01: Bank Stabilization and Grade Control at Pipe Outfall on Mainstem LCR005
- 8.6.5 Project Private-02: Rock Armor Outfall on Tributary LC010R005
- 8.6.6 Project Private-03: Grade Control Knickpoint on Tributary upstream of confluence with Mainstem LCR010
- 8.6.7 Project Private-04: Grade Control Incision on Tributary LC015R005
- 8.6.8 Project Private-05: Monitor Existing Grade Controls on Mainstem LCR015 and Confluence with Tributary LC020R005
- 8.6.9 Project Private-06: Basin Dam and Spillway Repair and Improvements on Tributary LC025R005
Section 9 – Implementation (156 K)
Appendices
- Appendix A - Digital Deliverables (13 K)
- Appendix B - Public Participation Materials (Summary Documents, Attendance Lists, Minutes, Watershed News) (95.1 M)
- Appendix C - Fundamentals of Fluvial Geomorphology (1.14 M)
- Appendix D - Channel Condition Scoring Matrix and Channel Condition Data (1.25 M)
- Appendix E - Dominant Process Indicators and Reach Summary Data Sheets (502 K)
- Appendix F - Hydrology and Hydraulics Data (813 K K)
- Appendix G - Land Use and Zoning Data (533 K)
- Appendix H - Stream Corridor Data (4.23 M)
- Appendix I - Capital Improvement Project Prioritization Ranking Worksheets (527 K)
- Appendix J - Capital Improvement Project Cost Worksheets (500 K)
Figures
- ES-1 Status of Watershed Master Plans
- ES-2 Study Area Map
- ES-3 CIP Locations
- 1-1 Status of Basin Plans Map
- 1-2 Study Area Map
- 1-3 Watershed Newsletter
- 1-4 Project Website
- 2-1 Study Reaches
- 3-1 Channel Evolution Stages
- 3-2 Fieldwork Limits
- 3-3 Study Reaches
- 3-4 Lynn Creek Photo
- 3-5 Channel Condition Scores
- 3-6 Stream Channel Dominant Process
- 4-1 Existing Floodplain and Floodway
- 4-2 FEMA Model Extents
- 4-3 Flood Hazard Area
- 4-4 Building Encroaching in Flood Hazard Area
- 4-5 Lynn Creek Outside the Flood Hazard Area
- 4-6 Flood Hazard Area Cross Section Locations Map
- 4-7 Buildings Encroaching 2 Feet above Flood Hazard Area
- 4-8 Buildings Encroaching 2 Feet above Flood Hazard Area
- 4-9 Watershed Culvert Analysis
- 5-1 Existing Land Use - 2017
- 5-2 Future Land Use - 2040
- 5-3 Hydrologic Soil Group
- 5-4 Existing Land Use Hydrologic Soil Overlay
- 5-5 Future Land Use Hydrologic Soil Overlay
- 6-1 GIS Stream Analysis
- 6-2 Test Site Locations
- 6-3 Test Site 1 with NHD Streams
- 6-4 Test Site 2 with NHD Streams
- 6-5 Test Site 3A and 3B with NHD Streams
- 6-6 Test Site 4 with NHD Streams
- 6-7 Test Site 5A and 5B with NHD Streams
- 6-8 City of Lincoln Minimum Corridor Illustration
- 6-9 Oak Creek Stream Test Site Locations
- 6-10 North Salt Creek Stream Test Site Locations
- 6-11 Oak Creek Contributing Drainage Area Locations
- 6-12 North Salt Creek Contributing Drainage Area Locations
- 6-13 Oak Creek Test Site 5 Buffer Delineation
- 7-1 Special Areas Map 1
- 7-2 Special Areas Map 2
- 7-3 Special Areas Map 3
- 8-1 Rock Grade Control Structure Detail
- 8-2 Bank Stabilization Structure Detail
- 8-3 Rock Armor and Scour Protection Detail (Rock Stilling Basin)
- 8-4 Watershed CIP Locations
- 8-5 Undermining Culvert Outfall
- 8-6 Undermining Culvert Outfall
- 8-7 Conceptual Layout of LC-01
- 8-8 Stream Incision
- 8-9 Conceptual Layout of LC-02
- 8-10 Stream Incision
- 8-11 Conceptual Layout of LC-03
- 8-12 Threatened Sidewalk
- 8-13 Conceptual Layout of LC-04
- 8-14 Scour at Culvert Outfall
- 8-15 Conceptual Layout of LC-05
- 8-16 Ditch Incision
- 8-17 Conceptual Layout of LC-06
- 8-18 Knickpoint at Culvert
- 8-19 Conceptual Layout of LC-07
- 8-20 Other & Private Projects
- 8-21 Perched Culvert Outfall
- 8-22 Conceptual Layout of Other-01
- 8-23 Stream Scour at the Bridge
- 8-24 Conceptual Layout of Other-02
- 8-25 Superior St Culvert
- 8-26 Conceptual Layout of Other-03
- 8-27 Scour at Pipe Outfall
- 8-28 Conceptual Layout of Private-01
- 8-29 Stream Incision
- 8-30 Residential Retaining Wall
- 8-31 Conceptual Layout of Private-02
- 8-32 Stream Incision
- 8-33 Conceptual Layout of Private-03
- 8-34 Early Stage Incision
- 8-35 Conceptual Layout of Private-04
- 8-36 Knickpoint in Stream
- 8-37 Conceptual Layout of Private-05
- 8-38 Failed Spillway
- 8-39 Conceptual Layout of Private-06
Tables
- ES-1 Project Priority, Rank and Cost
- 1.1 Watershed Characteristics
- 3.1 Average Field Score Per Channel Condition Rating Category
- 3.2 Number of GOOD, FAIR and POOR Field Scores
- 4.1 Main Stem Peak Flow Rates and Depths
- 4.2 Evaluation of Flood Hazard Area Boundary Elevations
- 4.3 Culvert Overtopping Analysis
- 5.1 Existing Land Use Categories
- 5.2 Existing Land Use Areas
- 5.3 Existing and Future Land Use
- 5.4 Land Use Change – Existing to Future
- 5.5 Lookup table used to define the curve number for each land use/soil group combination
- 6.1 GIS Stream Analysis
- 6.2 Contributing Drainage Area at Location of 1 Foot Depth and Defined Bed and Bank
- 6.3 Test Site Buffer Widths at Multiple Contributing Drainage Areas
- 6.4 Recommended Buffer Width
- 8.1 Project Priority, Rank and Cost