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Bayou La Batre Watershed Management Planning
Bayou La Batre Watershed Management Planning October 13, 2015 Project Team • Environmental Health & Resiliency: • Dewberry (Chris Warn) • Culture & Heritage: • PMCG (Mike Magnoli, PhD) • Habitats: • DISL (Just Cebrian, PhD) • Eric Sparks, PhD • Water Quality: • ESA (Doug Robison) • Shorelines: • SCE (Bret Webb, PhD, PE) • Access: • Biohabitats (Ed Morgereth) 2 | Bayou La Batre Steering Committee Meeting October 13,, 2015 WMP Overview • Stakeholder Outreach & Engagement • Watershed Characterization • Regulatory Evaluation & Adaptation • Prescription of Management Measures • Implementation Activities • Prioritize & Schedule Implementations Activities • Long Term Financing • Monitoring & Evaluation of Success • Watershed Management Plan Development 3 | Bayou La Batre Steering Committee Meeting October 13,, 2015 Stakeholder Outreach & Engagement • Identified stakeholders • Developed Steering Committee • Databases generated for Community Outreach participants and Steering Committee members • Developed both English and non-English versions of BLB WMP PowerPoint presentation • Developed meeting agendas, survey instruments, and other support materials • Identified issues based on public input • Developed preliminary goals 4 | Bayou La Batre Steering Committee Meeting October 13,, 2015 Stakeholder Outreach & Engagement • Steering Committee • Small Group Meetings • • • • • Response Center Churches Cambodian community Vietnamese community Laotian community • Other Meetings • Community-wide outreach meeting • Presentation to BLB City Council • Presentation to Chamber of Commerce • Met with agricultural community • Met with BLB Utility Board • Met with County Commissioners and State Representatives 5 | Bayou La Batre Steering Committee Meeting October 13,, 2015 Culture & Heritage • Challenges • Diverse community • Differing users (agriculture, fishing, aquaculture) • Limited economic diversity (shipbuilding, seafood industry, agriculture) • Community Concerns • • • • • Health of bayou and Portersville Bay Sustainability of seafood industry Community awareness of issues Impacts from future development Preservation of natural and historic sites • Actions • WMP development • Integrate with regional planning effort • Increase community engagement • Preliminary Goals • Improve community vitality and connection to bayou 6 | Bayou La Batre Steering Committee Meeting October 13,, 2015 Access • Challenges • Much of bayou privately owned • City docks underutilized and in disrepair • Differing users—commercial fisherman vs. kayaks • Differing pressure for highest and best use of public land • Community Concerns • Public access to bayou • Safety of recreating in bayou • More recreational opportunities • WMP Actions • Identify parcel ownership • Identify areas for public access • Identify connectivity opportunities • Preliminary Goal • Provide more public access and recreation opportunity for residents and tourists 7 | Bayou La Batre Steering Committee Meeting October 13,, 2015 8 | Bayou La Batre Steering Committee Meeting October 13,, 2015 9 | Bayou La Batre Steering Committee Meeting October 13,, 2015 10 | Bayou La Batre Steering Committee Meeting October 13,, 2015 Shorelines • Challenges • • • • Dredged channel Steep banks with little transition Much of bayou privately owned Dilapidated city docks • Community Concerns • Navigable channel for industry • Debris in upper bayou and flooding • Safe harbor • Actions - Assessing shorelines • 35% armored, 65% natural • 12.5 miles of tidally influenced shoreline today • Tidally influenced shoreline may increase to 13.7 miles by 2050 due to relative sea level rise • Tidally influenced shoreline may increase to 20.2 miles by 2100 due to relative sea level rise • Most of areas along the bayou are susceptible to storm surge and waves due to relatively low land elevations • Preliminary Goal • Improve shoreline health and resiliency 11 | Bayou La Batre Steering Committee Meeting October 13,, 2015 Shoreline Types Shoreline Protection • a. 38% of armoring is rubble/riprap b. 34% of shore protection is loose oyster shell c. 27% of armoring is vertical bulkhead (steel, concrete, wood) d. 1% of armoring is “trash” revetment (random loose debris) • • • 47% of shoreline is vegetated bank (43% low bank, 4% high bank) 35% of shoreline is armored (breakdown below) 13% of shoreline is organic (marsh) 5% of shoreline is sediment bank (sandy shoreline) Veg bank Armored Marsh Revetment (rubble/riprap) Bulkhead (steel) Random materials 12 | Bayou La Batre Steering Committee Meeting October 13,, 2015 Environmental Health & Resiliency • Challenges • Much of city in floodplain • Vulnerability to storm surge and localized flooding • Community Concerns • Debris in waterways • Flooding • Hurricanes • Actions • SLR & Vulnerability Assessment • Hazard identification • Critical facilities vulnerability assessment • Demographic impacts • SLAMM Modeling • SLOSH Modeling • Preliminary Goals • Improve community resiliency 13 | Bayou La Batre Steering Committee Meeting October 13,, 2015 14 | Bayou La Batre Steering Committee Meeting October 13,, 2015 15 | Bayou La Batre Steering Committee Meeting October 13,, 2015 Environmental Health & Resiliency • NOAA • Sea Level Rise and Coastal Flooding Impacts Viewer • http://coast.noaa.gov/digitalcoast/tools/slr • TNC • Coastal Resilience Decision Support Tool • http://maps.coastalresilience.org/gulfmex/# • UCF • Mapping Interface for Research Applications • http://champs.cecs.ucf.edu/cdslr/ 16 | Bayou La Batre Steering Committee Meeting October 13,, 2015 Water Quality • Challenges • Pathogens TMDL • Limited data • Existing reports are dated • Community Concerns • Fishable/swimmable water bodies • Trash in waterways • Pollution impacts on aquaculture and fisheries • Actions • Develop monitoring program • Gain better understanding of watershed hydrology and water quality • MST investigation for pathogens • Preliminary Goals • Improve water quality 17 | Bayou La Batre Steering Committee Meeting October 13,, 2015 Habitats 18 | Bayou La Batre Steering Committee Meeting October 13,, 2015 Bayou la Batre Watershed (HUC12) 19 | Bayou La Batre WMP Steering Committee Meeting October 13, 2015 Bayou la Batre Watershed (HUC12) Watershed divided into 3 areas: 20 | Bayou La Batre WMP Steering Committee Meeting October 13, 2015 Bayou la Batre Watershed (HUC12) Watershed divided into 3 areas: Upper – All tributaries that feed the Bayou 21 | Bayou La Batre WMP Steering Committee Meeting October 13, 2015 Bayou la Batre Watershed (HUC12) Watershed divided into 3 areas: Upper – All tributaries that feed the Bayou Mid – Area of forested land containing Carl’s Creek; connects the upper and lower watershed 22 | Bayou La Batre WMP Steering Committee Meeting October 13, 2015 Bayou la Batre Watershed (HUC12) Watershed divided into 3 areas: Upper – All tributaries that feed the Bayou Mid – Area of forested land containing Carl’s Creek; connects the upper and lower watershed Lower – The Bayou proper, lower sections of Carl’s Creek and Little River 23 | Bayou La Batre WMP Steering Committee Meeting October 13, 2015 Watershed Sampling Stations Upper and Mid WS Stations • Environmental Measurements – Mid water column • Water Samples – Mid water column • Water Flow • Deployment of current meters at stations 8, 9, 10, and 11 • Handheld flow measurements at all the rest. 24 | Bayou La Batre WMP Steering Committee Meeting October 13, 2015 Watershed Sampling Stations Lower WS Stations • Environmental Depth Profiles - 1m intervals • Water Samples - 1m below surface and above bottom • Water Flow- Deployment of Current Meters at Stations 2, 3, and 5 25 | Bayou La Batre WMP Steering Committee Meeting October 13, 2015 Watershed Characterization Watershed Development Hydrodynamics Environmental Flow Water Quality Nutrients Salinity Questions: Temperature Chlorophyll How much pollution? Where does it come from? Light How does it move? Oxygen 26 | Bayou La Batre WMP Steering Committee Meeting October 13, 2015 Mid Watershed Forested Area Mid Watershed: Contains large forested area located to the north of the Bayou Sheet flow and ground water 27 | Bayou La Batre WMP Steering Committee Meeting October 13, 2015 marshes are filters of land-derived nutrient pollution denitrification plants and microbes marsh soil uptake fertilizer Release into the embayment Mid Watershed Forested Area Mid Watershed: Contains large forested area located to the north of the Bayou creek Sheet flow and ground water Study Area 29 | Bayou La Batre WMP Steering Committee Meeting October 13, 2015 Mid Watershed Forested Area Mid WS Well Station • Water Samples – Extracted from installed porewater wells, hand grab from adjacent creek 30 | Bayou La Batre WMP Steering Committee Meeting October 13, 2015 Mid Watershed Forested Area 15-45cm 45-75cm 31 | Bayou La Batre WMP Steering Committee Meeting October 13, 2015 Mid Watershed Forested Area Mid WS Well Station • Water Samples – Extracted from installed porewater wells, hand grab from adjacent creek 32 | Bayou La Batre WMP Steering Committee Meeting October 13, 2015 Let’s keep the Bayou watershed beautiful and well managed! Thanks and questions? 33 | Powerpoint title goes here Month Day, 2013 This project is supported wholly or in part by Mobile Bay National Estuary Program as part of a grant from National Fish and Wildlife Foundation Gulf Environmental Benefit Fund 34 | Bayou La Batre Steering Committee Meeting October 13,, 2015
