marin county public works & gallinas watershed council lecture for mont marin hoa 8/10/11

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Alex Kahl, Gallinas Watershed Council & Liz Lewis, Marin Alex Kahl, Gallinas Watershed Council & Liz Lewis, Marin County Public Works County Public Works How Can Watershed Planning Support Community Enhancement?

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Marin County Department of Public Works & Gallinas Watershed Council joint lecture for Mont Marin Home Owners Association on 8/10/11

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Page 1: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Alex Kahl, Gallinas Watershed Council & Liz Lewis, Marin County Public WorksAlex Kahl, Gallinas Watershed Council & Liz Lewis, Marin County Public Works

How Can Watershed Planning Support Community Enhancement?

Page 2: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Overview• Gallinas and Miller Creek: a look back and

forward • What can your community do to maintain our

healthy creeks? • How will future developments impact our

creeks? • Dredging Las Gallinas Creek for recreation • What are our flood control issues?

Page 3: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Joint map mc and lgc watersheds

Miller Creek and Las Gallinas Creek watersheds

Page 4: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Las Gallinas Creek- circa 1915

Page 5: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11
Page 6: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11
Page 7: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

http://www.nbwatershed.org/millercreek

Miller Creek Timeline

Page 8: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Lower Las Gallinas Creek 1914

Page 9: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Marin Historical Society-c 1953

Page 10: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11
Page 11: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

A Tale of Two Creeks

Steelhead Salmon

Page 12: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Stepping through the Gallinas Creek watershed

Page 13: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Diversity in the WatershedDiversity in the Watershed

Page 14: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Special Status Species in the Gallinas Creek Special Status Species in the Gallinas Creek WatershedWatershed

Page 15: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Gallinas Watershed CouncilGallinas Watershed Council

Who Are We? Who Are We? Local community members interested in improving Local community members interested in improving

the ecological conditions in the Gallinas Creek the ecological conditions in the Gallinas Creek watershedwatershed

Project Partners:Project Partners:

*MarinLink*MarinLink

*STRAW*STRAW

*MCSTPPP and Marin County Public Works*MCSTPPP and Marin County Public Works

*LGVSD – MMWD – MSS – NSRCR – and more!*LGVSD – MMWD – MSS – NSRCR – and more!

Page 16: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Gallinas Watershed CouncilGallinas Watershed CouncilGWC Mission:GWC Mission:

To connect the people who To connect the people who live and work in Las Gallinas live and work in Las Gallinas Valley with their watershed.Valley with their watershed.

To educate the community To educate the community regarding the ecological, regarding the ecological, financial and social benefits financial and social benefits of watershed stewardshipof watershed stewardship

To help each other take responsibility for our To help each other take responsibility for our impact on the watershed through protection, impact on the watershed through protection, restoration and education.restoration and education.

To advance conservation action and to protect, To advance conservation action and to protect, restore and enhance the natural resources in restore and enhance the natural resources in the Gallinas Creek watershedthe Gallinas Creek watershed

Page 17: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Gallinas Watershed CouncilGallinas Watershed CouncilOur Watershed Vision: Our Watershed Vision:

Restoration/Enhancement from open Restoration/Enhancement from open space headwaters to the bayspace headwaters to the bay

A watershed-aware community supported A watershed-aware community supported by local schools and homeownersby local schools and homeowners

A A creek-focusedcreek-focused greenbelt park along greenbelt park along Freitas Parkway - Freitas Parkway - “Ditch the Ditch” “Ditch the Ditch”

Page 18: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

ProblemsProblems

• No In-Stream Habitat

• No Riparian Habitat

• Excess Freshwater Discharges

• Poor Water Quality

• Excessive Algal Growth

• Trash

• Creek & Community Disconnected

Page 19: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Discovered Illegal Creekside Discovered Illegal Creekside DumpDump

North Fork Gallinas Creek

Page 20: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Dumpsite Cleared!Dumpsite Cleared!

Page 21: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Benefits of an Enhanced Gallinas Creek

• Creek focused corridors that connect the community with Gallinas Creek and the surrounding town areas

• Maintain and enhance economic vitality

• Infrastructure planning will improve our opportunities to seek funding

Page 22: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

What is GWC Doing?What is GWC Doing?• Biannual Trash pick up days• Meetings with San Rafael City Manager and DPW• Advocating for Las Gallinas Watershed Program• Neighborhood Watershed Awareness

Informational meetings• Educational booths at community events

Page 23: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11
Page 24: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Current Road and Ditch Arrangement

•Concrete channel in median of road

•No floodplain area, small pocket parks

•Sidewalks next to road

Page 25: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Possible Road and Channel Arrangement

•Channel on one side of road and widens downstream

•Floodplain and park created within existing right of way

•New foot and bike pathway next to channel where space is sufficient

Page 26: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11
Page 27: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Marin Watershed Programwww.marinwatersheds.org

Page 28: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Why A Watershed Approach?

• Why now? We have momentum and support from our partners and the County.

• The issues identified by the community aren’t going away; this program allows us to be ready when the economy recovers and new funding programs come on line.

• Supports and guides protection and enhancement of significant natural resources

• Leverages funding to attract State and Federal sources

• Sea Level Rise adaptive management strategies would be transferable to other San Rafael shoreline areas

Page 29: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11
Page 30: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

What are the goals of the watershed program?

• Flood Protection• Reduce on-going maintenance costs and

impacts• Responsive to sea level rise • Supports multiple benefit projects i.e flood

protection and water quality improvements• Incorporates ecological benefits• Meets multiple partner agency objectives • Attractive to funders

Page 31: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Policy Advisory Committee: •BOS FC District Rep•City Council Reps•Flood Zone Advisory Board Reps•Water and Sanitary Board Reps

Technical Working Group:•Municipal Directors •Local, State & Federal Agency Reps •Watershed Groups •Homeowner’s Association Reps

Operations and Finance Committee: •City Managers & County DPW Director

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Board of SupervisorsFlood Control and Water Conservation District

Page 32: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Tools for Watershed Planning

Computerized models to evaluate flood flows & sediment transportComputerized models to evaluate flood flows & sediment transport

Page 33: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Mapping creeks, wetlands, and flood protection facilitiesCoyote Creek watershed-Tamalpais Valley

Page 34: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

• Dredging slide

Page 35: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Development and Water Quality Impacts

Page 36: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Managing Stormwater as a ResourceManaging Stormwater as a Resource

• Stay disconnectedStay disconnected• Use permeable Use permeable

pavementspavements• Limit paved surfacesLimit paved surfaces• Detain and retain runoff Detain and retain runoff

throughout the sitethroughout the site• Use drainage as a Use drainage as a

design elementdesign element

Page 37: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Slow It, Spread It, Sink It

• Site design mimics natural drainage

• Disperse runoff to landscape or use permeable surfaces

• To learn more go to http://www.sscrcd.org/rainwater

Page 38: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Wolf Creek RestorationGrass Valley, CA

•Restoration and trail development

•Recreation, economic and community building potential

First Step: Master Plan

Guides: Creek restorationTrail linkagesCreek access points

Page 39: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Santa Rosa Creek: Prince Memorial Greenway

Page 40: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Prince Memorial GreenwayPrince Memorial Greenway, Santa Rosa, CA

Page 41: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

What is the status of a Gallinas/Miller Watershed Program?

County of Marin, Flood Zone 6, CSA 6 and the Las Gallinas Sanitary District have committed to implement the watershed approach

Meetings ongoing with City of San Rafael and Flood Zone 7 Advisory Board

Page 42: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Proposed budget for Gallinas/Miller Creek Watershed Program

Expenditures CostHydrology and Hydraulics Model $270,000Geomorphic/Sediment Study $70,000Staffing $52,500Total $392,500

RevenueCounty of Marin $80,000City of San Rafael (proposed) $80,000Flood Zone 6 $12,500Flood Zone 7 (proposed) $80,000CSA 6 $60,000Las Gallinas Sanitary District $80,000Total $392,500

Page 43: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

Protecting Watersheds: Protecting Watersheds: What You Can Do EverydayWhat You Can Do Everyday

Simple Ways to Protect Your WatershedSimple Ways to Protect Your Watershed• Don’t Dump or LitterDon’t Dump or Litter• Water and Landscape WiselyWater and Landscape Wisely• Control the FlowControl the Flow• Pick up After RoverPick up After Rover• Fix that LeakFix that Leak• Participate in a CleanupParticipate in a Cleanup• Break up cement; create areas for water to soak Break up cement; create areas for water to soak

into the groundinto the ground• Join Gallinas Watershed CouncilJoin Gallinas Watershed Council

and help us restore the creek!and help us restore the creek!

Page 44: Marin County Public Works & Gallinas Watershed Council Lecture for Mont Marin HOA 8/10/11

www.marinwatersheds.org

www.gallinaswatershed.org