1 / 21

Conservation Design & Volume Reduction Hanover, MN

Conservation Design & Volume Reduction Hanover, MN. Two Project Phases . 2007:Conservation Design 2009-2010: Water resource planning and regulation development Water resource management plan Stormwater ordinance CD ordinance PUD ordinance. Conservation Design Project - 2007 . Goals

sevita
Télécharger la présentation

Conservation Design & Volume Reduction Hanover, MN

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Conservation Design & Volume ReductionHanover, MN

  2. Two Project Phases • 2007:Conservation Design • 2009-2010: Water resource planning and regulation development • Water resource management plan • Stormwater ordinance • CD ordinance • PUD ordinance

  3. Conservation Design Project - 2007 • Goals • Understand concept through concept design for actual parcel facing development • Understand key design features: • Open space percentages • Density • Impervious surfaces • Anticipate regulations needed to support and guide CD development

  4. What is Conservation Design?

  5. What is Conservation Design?

  6. Steep Slopes & Waterways Wetlands Vegetation & Farmsteads COMPOSITE

  7. Conservation Design Scenario 1: 100 foot lots

  8. Conservation Design Scenario 2: 80 foot lots

  9. Conventional Development 2.5 Acre lots

  10. Development Analysis

  11. Water Resource Planning & Regulation Development 2009-2010 • Goals • Develop stormwater performance standards • Rate • Volume • Water quality • Performance vs. prescription • Improve standards, but balance with economic development.

  12. Planning Concerns with Infiltration Practices and Volume Control Performance Standards • How will this work in different areas of the city? • What is spatial impact of different volume control standards? • What is reasonable balance between volume control standards and development cost?

  13. BankWest Planning Example

  14. Stormwater Performance Standards: Volume Control • New Development: • Limit post development runoff volume to pre-settlement runoff volume for the 1-year storm in A and B soils. • Redevelopment: • Limit post development runoff volume to pre-settlement runoff volume for the 1-year storm in A and B soils.

  15. BankWest Example: Volume

  16. Stormwater Performance Standards: Rate Control • New Development • Limit post development runoff rate to presettlement runoff rate for the 1, 10, and 100-year storm, or • 0.1 cfs/acre, whichever is greater. • Redevelopment • Limit post development rate to existing rate for 1, 10, and 100-year storm

  17. BankWest Example: Rate

  18. Conclusions • Visualizing concepts builds political support for change. • Local examples make a difference • No need to regulate actual impervious surface with volume control standards. • Minimizes regulations • Increases development flexibility

More Related