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SALT LAKE CITY DEPARTMENT OF PUBLIC UTILITIES Red Butte Creek Riparian Corridor Study Public Workshop 4 December 9, 2009 Facilitated by BIO-WEST, Inc. Workshop Presentation Outline. Review of Workshops 1, 2, and 3 Purpose/Need of Study Study Plan and Schedule - PowerPoint PPT Presentation
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SALT LAKE CITYSALT LAKE CITY
DEPARTMENT OF PUBLIC UTILITIESDEPARTMENT OF PUBLIC UTILITIES
Red Butte Creek Riparian Corridor StudyRed Butte Creek Riparian Corridor Study
Public Workshop 4Public Workshop 4December 9, 2009December 9, 2009
Facilitated by BIO-WEST, IncFacilitated by BIO-WEST, Inc.
Workshop Presentation Outline• Review of Workshops 1,
2, and 3– Purpose/Need of Study– Study Plan and Schedule– Riparian Corridor Definition &
Functions– Baseline Assessment– Recommended Types of
Improvement Projects
– Vision Statement
• Overview of Draft Report Organization
• Useful Tools
Why is SLC Conducting This Study? • To assess current
conditions
• To determine desired future conditions
• To identify opportunities for restoration and remediation of Emigration Creek
Why is SLC Conducting This Study? • To use the
information, data, and maps developed during the study to inform planning, permitting, and administrative processes of the Riparian Corridor Overlay District Ordinance (RCO)
What Will the Riparian Corridor Study Management Plan Include?• Statement(s) of desired future
conditions
• Identification of restoration and remediation projects
• Cost analysis and ranking of projects
• Identification of project funding mechanisms
• Presentation of best management practices
• Inventory of GIS-based information
• Continuation of public outreach
What Does a Riparian Corridor Study Involve?
BIO-WEST
Planning & Public Outreachpublic workshops (four)
subcommittee/stakeholder meetings (quarterly)
web site comment form
Baseline Condition Assessmentvegetation
stream condition
Historical and Current Trend Assessment
Salt Lake City Public Utilities
Management Plan / Desired Future Conditions
Timeline and Milestones
Fall 2008 Winter 2009 Spring 2009 Summer 2009 Fall 2009
Field Evaluation
Public Workshop 1
Public Workshop 2
Public Workshop 3
Public Workshop 4
Historical Trend Assessment
High Flow Field Evaluation
Identify Improvement Projects
Draft and Final
Mgt. Plans
Riparian Area Definition: • Zone of influence or “transition zone”
between aquatic and upland areas• The city’s Riparian Corridor Overlay
Zone Ordinance (RCO) applies to the area within 100 feet of the annual high water level of above-ground streams.
Riparian Corridor Functions:• Wildlife and Aquatic
Habitat– 60% of vertebrate species in arid
Southwest rely on riparian areas (Ohmart and Anderson 1982)
• Shading and Water-Temperature Control
• Aesthetics• Recreation and Open Space• Floodplain Storage
and Flood-Damage Reduction
Riparian Corridor Functions:• Wildlife Travel
Corridors/Connectivity
• Organic Matter Inputs
• Stream Stability/Safety
• Pollution and Nutrient Filtration
• Storm Water and Irrigation Water Conveyance
Baseline Condition Assessment
Baseline Condition Assessment
Baseline Assessment Results Review• Aesthetics Function – Litter
• Wildlife Habitat Function – Invasive Plants
• Filtration Function – Lack of shrub and understory cover
• Stability Function– Erosion from storm runoff and
drain outfalls– Scour around concrete– Culverts narrower than channel
width– On-going stream channel
adjustments– Altered hydrology
Improvement Projects Review
• Riparian Corridor Projects– General Projects
•Appropriate at any scale
– Local-scale Projects•Relevant to specific individual
locations or features (storm drain, culvert, etc.)
– Reach-scale Projects•Stream bed and bank
stability should be addressed at this scale
• Watershed-scale Projects
Figure from SLCO 2009
Improvement Projects Review
• General Projects– Stream Cleanup– Invasive Plant Removal– Biotechnical Slope
Stabilization
• Local-scale Projects– Storm Drain Outlet
Protection– Stream Crossing
Design/Culvert Replacement
– No-trespassing Signage
Improvement Projects Review• Reach-scale Projects
– Should implement comprehensively through reach from “hard point” to “hard point”
– Grade Control– Bank Stabilization
• Toe protection
Draft Red Butte Creek Document
• Section 1: Introduction– RCO ordinance, setbacks– study goals, objectives,
mayor’s goal– riparian corridor
functions
• Section 2: Baseline Assessment Methods– study reaches– stream-condition
assessment– vegetation assessment– watershed/historical
information
Draft Red Butte Creek Document• Section 3: Baseline Assessment Results
– watershed conditions– historical conditions– field assessment results
• Section 4: Recommended Improvement Projects– description of various project types and
scales– references and tools
• Section 5: Riparian Corridor Vision– summary of stakeholder input– vision statement– implementation approaches
• Appendix C: Reach Maps, Summaries, and Recommendations
• Sidebars provide resource/ reference information for:– potential partnering organizations– herbicide BMPs– internet resources and reference
documents (storm water, stream stabilization, bio-engineering, fire-wise plants)
– sources of native plants and seed– material suppliers for erosion
control, bio-engineering etc.– permitting
Tools Included in Draft Plan – Section 4
Tools (cont.) – Section 4• Tables
– invasive plant species
– recommended native plant species• preferred light
conditions• preferred
moisture conditions
• suitable for planting as a live cutting/live stake
Tools (cont.) – Section 4
• Tables– permitting
requirements
– unit cost information
– grant resources for funding improvement projects
Tools (cont.) - Section 4
Tools (cont.) - Section 4
Tools – Section 5
Tools (cont.) – Appendix B
• Detail drawings
Tools – Appendix C• Two-page layout for each stream reach
Tools – Appendix C
Tools – Appendix C
Next StepsNext Steps• More Detailed Information on
Priorities and Project Costs for Specific Reaches
Improvement Measure Approximate Quantity Approximate CostCulvert replacement/outlet protection 280 foot-long culvert $175,000 + installation
Comprehensive bank stabilization
675 linear feet (half of total bank length) $47,250
Comprehensive grade control 6 vortex rock weirs $12,600
Biotechnical slope stabilization
4,000 sq. ft around culvert outlet $17,000
Storm drain improvement 3 outfalls $700
Invasive plant removal 1.15 acres $860
Next StepsNext Steps• More
Detailed Information on Specific Action Items, Lead Entities, Time Frames for Implementation
Next StepsNext Steps• Possible Establishment of a
Riparian Corridor Working Group to Guide Implementation Efforts– Let us know if you would like to be
involved!– Emphasis on collaboration and
pursuit of grant funding
YOUR INPUT IS IMPORTANT!
• If you have a specific interest in a certain stream reach or set of reaches, let us know what riparian functions or improvement project recommendations are most important to you in that reach.
• Please add your comments on the reach-specific forms.
• Let us know who you are.
YOUR INPUT IS IMPORTANT!• Comment on the draft
vision statement for the project.
• Ask project staff questions.
• Provide comments on the draft management plan.
• Draft report comments will be accepted until January 15, 2010.
Where to Get the Draft Report• Download (*.pdf)
files from City website www.slch2o.com
• Take a CD copy.
• Take a hard copy (limited supply).
• Ask to have a CD copy mailed to you.
Ways to Comment and Participate• Appendix C pages posted around the room
• Workshop response form
• SLC DPU website (www.slch20.com)
• Contact SLC DPU: Florence Reynolds 801-483-6864 florence.reynolds @slcgov.com
THANK YOU FOR THANK YOU FOR PARTICIPATING!PARTICIPATING!BIO-WEST Contacts:BIO-WEST Contacts:
Melissa StampMelissa [email protected]@bio-west.com
Christopher SandsChristopher [email protected]@bio-west.com