Surface Water Management Plan
Chanhassen has a wealth of natural resources including 12 lakes, 356 wetlands, and nearly 11 miles of streams and rivers and their tributaries. Chanhassen is the origin of Bluff Creek and Riley Creek while Lotus Lake feeds directly into Purgatory Creek. The city is also home to some very unique and sensitive aquatic resources such as a designated trout stream in Assumption Creek and a rare ecosystem in Seminary Fen. Cumulatively, surface water features account for 3,975 acres of the City’s surface area, or approximately 26% of the city’s 24 square miles. The city’s Surface Water Management Plan (SWMP) provides a framework for protecting and improving Chanhassen’s lakes, streams, and wetlands as well as for addressing drainage and flooding issues.
The City's first Surface Water Management Plan was adopted in 1994 and directed development and resource management through a time of intense growth. On August 28, 2006, the Chanhassen City Council unanimously voted to adopt the City's Second Generation Surface Water Management Plan (SWMP). Chanhassen has recently begun the process of developing the Third Generation Plan. Residents are encouraged to comment on the existing plan content and changes that would like to see incorporated into the third generation plan.
The existing plan can be found at the links below.
- Executive Summary
- Background, History and Physical Environment
- Goals and Policies
- Surface Water Resources
- Wetlands Management
- Implementation Plan
- Appendix A Figures
- Appendix B Acronyms and Glossary
- Appendix C Literature Review and Website Links
- Appendix D Development Standards
- Appendix E Hydrologic System Tables
- Appendix F Lake Background Information
- Appendix G Neighborhood Studies
- Appendix H Goals and Policies
- Appendix I Recommended Ponds - Status Summary
- Appendix J NPDES MS4 Permit SWPPP (Summary)
- Appendix K Wetland Ordinance Recommendations
- Appendix L Summary of MNRAM 3.0 Output