1. Three Point Consulting Hawthorn Park Enhancement Project 3 Consulting TT hree Poin

2. 3 Consulting TT hree Poin Hawthorn Park Enhancement Project Project Manager: Jon Keim Report Editor: Daniel Conley Project Engineer: Eric Diehl Project Engineer: Andy Bolyard

3. Hawthorn Park Enhancement Project Project Background Project Approach Design Solutions

4. Project Background Location of Hawthorn Park in relation to the State of Indiana  Property Previously Owned by the Hulman Family  1982 – Land Purchased by Vigo Co. Parks and Recreation Dept.  Burns Lake  National Road Heritage Trail  Client: Mr. William K. Ruble, Superintendent of Vigo County Park and Recreation Dept.  Project Encompasses: water resources, geotechnical, transportation, and environmental

5. Project’s Design Requirements Assess current Burns Lake Dam Hazard Classification Investigate adequacy of Emergency Spillway for Burns Lake Connect Existing National Road Heritage Trail to Tupelo Shelter

6. Design Solutions Site and Dam Investigation Survey Dam & Spillway Codes and Regulations Indiana Code for Regulation of Dams Indiana Dam Safety Inspection Manual General Guidelines for New Dams and Improvements to Existing Dams in Indiana AASHTO Guide for the Development of Bicycle Facilities

7. Design Solutions Emergency Spillway Hydrologic Study Hydraulic Study USACE HEC-HMS Results

8. Design Solutions Hydrologic Study Watershed Delineation SCS Curve Numbers Land Use Hydrologic Soil Groups Time of Concentration Design Storm: 6hr PMP Stage Storage Relationships

9. Progress to Date

11. Design Solutions Hydrologic Study Watershed Delineation SCS Curve Numbers Land Use Hydrologic Soil Groups Time of Concentration Design Storm: 6hr PMP Stage Storage Relationships

12. Design Solutions HEC-HMS Results Emergency Spillway Adequate Developed Conditions

13. Design Solutions Emergency Action Plan Chain of Command Keith Ruble Local Authorities Evacuation Plan Emergency Agencies State Emergency Management Agency (SEMA)

14. EMERGENCYACTIONPLANEMERGENCYACTIONPLAN

15. Design Solutions Hazard Classification Assessment Breach analysis HEC-RAS modeling Breach wave will overtop trail grade

16. Design Solutions Riser and Barrel Design Existing Structure will Degrade in Future Have Design Ready for construction

17. Design Solutions Trail Layout and Design Connect to Tupelo Shelter and Restroom Facilities Surface Options Site Preparation

18. Design Solutions

19. Preliminary Slope Stability Assessment Subsurface Investigation Dynamic Cone testing XSTABL modeling Adequately Stable

20. Summary Site Investigation Hydrology/Hydraulics Study & Modeling Hazard Classification Assessment Trail Design & Layout Riser & Barrel Design Slope Stability Assessment

21. Questions? 3 Consulting TT hree Poin