Environmental Restoration Management Plan Eagle Point Park
Total Page:16
File Type:pdf, Size:1020Kb
EAGLE POINT PARK ENVIRONMENTAL RESTORATION MANAGEMENT PLAN Final Report | January 20, 2017 Submitted to: THE CITY OF DUBUQUE, IOWA Submitted by APPLIED ECOLOGICAL SERVICES, INC. AND AYRES ASSOCIATES INC. - Page intentionally left blank - Table of Contents AcKNOWLEDGEMENTS . IV EXecUTIVE SUMMARY . 1 1 INTRODUCTION . 3 1.1 Reasons for Environmental Restoration Plan 3 1.2 What is Ecological Restoration? 3 1.3 Benefits of Ecological Restoration 3 1.4 Restoration Management Approach 3 2 SITE ASSESSMENT MeTHODS . 4 2.1 Existing Data Review 4 2.2 Field and Desktop Assessment Methods 5 2.3 Ecosystem Model for Restoration and Management 5 2.4 Cultural Features and Avoidance Rating 5 3 ECOLOGICAL CONDITIONS & ASSESSMENT . 6 3.1 Location, Size and Context 6 3.2 Geology, Soils and Historical Vegetation 6 3.3 Site History, Cultural Resources, and Contemporary Uses 7 3.4 Water and Hydrology 9 3.5 Land Cover and Vegetation 9 3.6 Wildlife 15 3.7 Rare Natural Features & Ecological Sites 17 4 SUMMARY OF FINDINGS . 17 4.1 Cultural Resources 17 4.2 Water and Hydrology 17 4.3 Vegetation 17 4.4 Wildlife 18 5 ECOSYSTEM MODEL FOR RESTORATION & MANAGEMENT . 18 5.1 Ecosystem Model 18 5.2 Conditions of the Distant Past (before 1800) 18 5.3 Recent Historical and Present Conditions (1800-2016) 19 5.4 Anticipated Future Conditions (2050 Without and With Intervention) 20 6 VISION, PRINCIPLES & GOALS . 21 6.1 Background 21 6.2 Vision Statement 21 6.3 Planning Principles 21 6.4 Project Goals 22 January 20, 2017 i Table of Contents (Cont.) 7 ECOLOGICAL ReSTORATION & MANAGEMENT. 23 7.1 Restoration and Management Stages and Approach 23 7.2 Invasive Vegetation 23 7.3 Proposed Native Plant Communities 23 8 CULTURAL ReSOURce PROTecTION . 26 9 STORMWATER BeST PRACTIceS . 26 9.1 Best Practices for Eagle Point Park 26 9.2 Prioritization of Stormwater Best Practices 27 10 MONITORING, ADAPTIVE MANAGEMENT & TRAINING. 28 10.1 Ecological Monitoring and Adaptive Management 28 10.2 Specialized Training 28 11 ReSTORATION & MANAGEMENT TASKS . 29 11.1 Prescribed Burning (Park-Wide) 29 11.2 Enhanced Mesic Forest, Dry-Mesic Forest/Woodland 29 11.3 Woodland with Natives, Prairie 31 11.4 Bluff Prairie/Savanna 32 12 ReSTORATION & MANAGEMENT PHASING & COSTS. 33 12.1 Management Units 33 12.2 Restoration and Short-Term Management Phasing (Years 1-3) 33 12.3 Restoration and Management Phasing & Costing (Years 1-10) 33 13 PUBLIC OUTREACH & INTERPRETATION . 37 14 PARTNERING & FUNDING OpPORTUNITIES . 38 14.1 Partnering 38 14.2 Funding 38 15 CONCLUSION . 39 16 ReFERENceS & ReSOURceS CONSULTed. 40 ii Eagle Point Park | ERMP | Dubuque, IA Table of Contents (Cont.) TABLES Table 1: Existing Land Cover Types 9 Table 2: Incidental Wildlife Observations at Eagle Point Park 15 Table 3: Summary of Habitat Preferences of SGCN Statewide by Habitat Class (Iowa DNR 215) 16 Table 4: Changes from Existing to Proposed Plant Communities 24 Table 5: Cultural Resources Avoidance Ratings for Eagle Point Park 26 Table 6: Prioritization of Stormwater Best Practices at Eagle Point Park 28 Table 7: Generalized Schedule for Restoration & Short-Term Management of a Given Project Area 34 Table 8: Restoration and Management Phasing & Opinion of Probable Cost (OPC) 35 EXHIBITS Exhibit 1: Regional Context Exhibit 2: Topography & Soils Exhibit 3: 1930s Aerial Photograph Exhibit 4: 2015 Aerial Photograph Exhibit 5: Stormwater Issues Exhibit 6: Existing Land Cover Exhibit 7: Core Habitats Exhibit 8: Pre-1900 Vegetation Exhibit 9: Proposed Land Cover Exhibit 10: Cultural Resources Avoidance Exhibit 11: Recommended Stormwater Best Practices Exhibit 12: Prioritization of Stormwater Best Practices Exhibit 13: Ecological Management Units APPENDICES Appendix A: Glossary and Acronyms Appendix B: Eagle Point Park - Flora by Land Cover Type and Stratum (Including Cover Class) Appendix C: Iowa DNR “Environmental Review for Natural Resources” Response Appendix D: Minnesota Department of Natural Resources Identification and Description of Practices to Avoid the Introduction or Movement of Invasive Species Appendix E: Native Species Lists and Seed Mixes for Ecological Restoration & Enhancement of Eagle Point Park Appendix F: Eagle Point Park - Ecological Monitoring Program January 20, 2017 iii Acknowledgements Applied Ecological Services gratefully acknowledges City of Dubuque staff, which directed and contributed to this Environmental Restoration Management Plan. City of Dubuque contributors include: Steve Fehsal Park division manager Jeff Ahlers Natural Resources and Sustainable Practices Specialist denise ihrig Water Plant manager Wally Wernimont Assistant Planner david Johnson Assistant Planner dean mattoon engineering technician eric Schmechel urban Conservationist Laura Carstens Planning Services manager Jean Nachtman Finance director P LAN PREPARED FOR: City of Dubuque 50 W. 13th Street dubuque, iowa 52001 563.589.4100 Prepared BY: Applied Ecological Ayres Associates Inc Services, Inc. 21938 mushtown Road 101 e badger Road Prior Lake mN 55372 madison, Wi 53713 952.447.1919 608.255.0800 AeS Project #16-0320 Ayres Project #27-1058.10 Kim Alan Chapman, Phd Jacob blue, PLA doug mensing, mS Caitlin blue, mLA Genesis mickel, mS Susan Lehnhardt, bS, bA Cecily Cunz, AiCP Citation Applied ecological Services and Ayres Associates. 2017. eagle Point Park environmental Restorationm anagement Plan. Report for the City of dubuque, iA. iv Eagle Point Park | ERMP | Dubuque, IA Executive Summary eagle Point Park is a unique and important amenity A vision statement and planning principles for eagle for the City of dubuque. While the Park is most known Point Park were developed with the City to meet the for its cultural history, spectacular views, and modern aspirations and goals of the community.t his established uses (playgrounds, picnicking, photography, etc.), it also the foundation on which recommendations were made represents a significant area of natural habitats within to restore and manage native plant communities the City. and improve human access, use, and enjoyment of the City of dubuque recognizes the unique nature and the Park. to achieve the City’s goals for the Park, it value of eagle Point Park, the expanded educational was decided that ecological restoration should take and recreational opportunities it could provide, and the an enhancement approach, building on the existing multiple benefits of ecological stewardship, especially native plant communities at the site. this incremental making the site more resilient over the long term, approach will increase native plant and animal diversity, which is an important sustainability goal. this plan improve ecosystem functions, invite safe and enjoyable supports the restoration of native plant communities visits, and reduce long-term maintenance costs of the at eagle Point Park; work that will improve the health Park. major restoration and management activities will of the site’s ecosystems and enhance its ecological include: functions, such as water purification, groundwater • Removal of invasive trees, shrubs, and herbaceous recharge, and pollinator support. Restoring a greater species; variety of native plant species in the Park’s forests, • thinning of young, aggressive native trees from the savannas, and grasslands will positively affect migrating understory; and breeding birds; insects such as butterflies, bees and • increase the diversity of native trees, shrubs, and other pollinators; small mammals; and other wildlife. herbaceous plants; in order to complete this environmental Restoration • install stormwater best practices to better manage and management Plan, the consulting team: runoff; and • Gathered and reviewed existing site data from • Stabilize eroding ravines. numerous reports, maps and data sets; An ecological monitoring program was developed for • Conducted field assessments focusing on the site’s eagle Point Park. monitoring is recommended to measure vegetation and erosion features; and progress and practice adaptive management—a • Solicited information and ideas from the City of feedback loop where field observations are compared dubuque regarding their goals for the project. to the expected outcomes of restoration, and the next the upper/central portion of eagle Point Park is year’s restoration work is modified as needed to keep dominated by manicured parkland (mostly turf the restoration work on track towards the project vision. beneath mature oak trees). the park’s perimeter during perpetual management after establishment, can be characterized generally as sloping downward activities generally follow a routine schedule. this (moderately steep to vertical) and covered with plan also presents project priorities, implementation forest vegetation. invasive plants (trees, shrubs, and phasing, and opinion of probable cost. herbaceous plants) were scattered throughout much of by implementing the eagle Point Park environmental the park. Restoration and management Plan, the City and A wildlife survey was not conducted as part of this surrounding communities will over time see an already- project, but incidental observations indicated the cherished public property become a healthier and more presence of wildlife species that would be expected in engaging place for people and nature. a small urban natural area. However, the abundance and diversity of wildlife in the Park has the potential to increase as ecological restoration and management moves forward. January 20, 2017 1 - Page intentionally left blank - 2 Eagle Point Park | ERMP | Dubuque, IA Environmental Restoration