Regional Stormwater Management Committee
Overview
In 2005, the cities and counties of Central Oregon joined forces to protect local water resources from polluted urban runoff, to manage urban flooding, and to meet new state and federal regulatory requirements by developing comprehensive stormwater management guidance for the region. This new partnership provides opportunities to work more efficiently and effectively and to provide consistency and clout for the region. The first major project of the partnership undertook was the development of a regional stormwater management manual. The Central Oregon Stormwater Manual provides needed stormwater guidance for each participating jurisdiction, was funded primarily through jurisdiction contributions, and was coordinated by a committee of participating cities and counties and the Central Oregon Intergovernmental Council.
The Central Oregon Stormwater Manual Project
The Central Oregon Stormwater Manual adapts the best available stormwater management guidance from Oregon and Eastern Washington to create a reference for engineers, builders, and local government staff on the design and construction of runoff treatment and flow control facilities. The Best Management Practices (BMPs) that make up the core of the Manual are intended to comply with all federal and state regulations, are suitable to the unique climatic and hydro-geologic conditions of the region, and will protect both water quality and natural runoff patterns. In contrast to historic practice, non-underground injection methods of managing stormwater are encouraged and pre-treatment is required for water that is injected underground. The cities, counties, and COIC retained Otak, Inc. to develop the Central Oregon Manual. Three public and stakeholder workshops were held between June 2006 and June 2007 to introduce the new Manual to the community, to gather feedback on the draft Manual, and to provide training in the use of the Manual.
Central Oregon Stormwater Manual available for download
We have made separate pdf files of the chapters and some of the larger appendices, so that people can select whether or not to print them. Please click on the links below to view or print.
Cover and Table of Contents
Chapter 1 - Introduction
Chapter 2 - Basic Requirements
Chapter 3 - Drainage Submittal
Chapter 4 - Site Characterization
Chapter 5 - Hydrologic Analysis and Design
Chapter 6 - Water Quality
Chapter 7 - Flow Control
Chapter 8 - Conveyance
Chapter 9
- Erosion and Sediment Control Design
Chapter 10 - Source Control
Chapter 11 - Site Design and Low Impact Development
Chapter 12 - Maintenance Easement Tracts
Appendix 7A 1 - Plant Select
Appendix 7A 2 - Xeriscaping
Appendix 9A - Erosion and Sediment Control Design
Appendix 11A - Site Design A
Appendix 11A - Site Design
Appendix 11B - Low Impact Development
Appendix 12A - Maintenance
2009 Revision Process
In January 2009 the Regional Stormwater Committee initiated a review and revision process to evaluate the Central Oregon Stormwater Manual and determine whether any changes are needed in the content or organization. The Committee will seek input from stakeholders and interested community members in late Winter – early Spring 2009, will determine needed revisions in Spring 2009, and plans to issue version 2 of the Manual by Summer 2009.
Check back soon to link to an on-line survey to collect your input for the 2009 Revision.
Project Organization and Funding
The Cities of Bend, Redmond, Prineville, Madras, and Sisters, and Crook and Deschutes Counties provided oversight and funding for the regional manual project and the Central Oregon Intergovernmental Council (COIC) played the role of coordinating agency for the group. The Oregon Association of Clean Water Agencies also provided a grant for the project. This Project is funded in part by the Oregon State Lottery through the Central Oregon Community Investment Board for the purpose of promoting economic and community development.
For more information please contact:
Phil Chang, COIC Program Coordinator, pchang@coic.org, (541) 548-9534
