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Resource Rain


Resource-Rain Logo- compressed

 **NOW IN EFFECT!**

 

 

What is Resource Rain?

New policies, ordinances, and codes relating to rainwater management and water quality went into effect on December 1, 2014 for the City of Chattanooga to comply with the provisions of the NPDES MS4 Permit from the state of Tennessee. Essentially, many new and redevelopments will have to capture and infiltrate more rain on site than ever before.

 

State & City Permits & Ordinances Driving Resource Rain

 

What is the Rain Management Guide?

The Rain Management Guide, or RMG provides stormwater management measures and methods designed to assist with the preservation and restoration of natural hydrologic regimes, to minimize combined sewer overflows, and to improve the City's water quality. These changes will have a lasting impact on our community.   

ASCE EWRI Stormwater Regulations May 7th Seminar presentations are at the bottom of the page. 

 

 For more in depth information regarding the RMG, click the FAQ below

Frequently Asked Questions

 

I&M Forms For Private Stormwater Management Facilities

 

Rainwater Management Guide (RMG)

 

Addendums

Addendum (Effective November 29, 2017)

Addendum #2 (Effective August 30, 2019)

Addendum #2 Revision #1 (Effective November 15, 2019)

 

Chapters

Chapter 1  Introduction

Chapter 2  Use of the Manual

Chapter 3  Stormwater Management Performance Standards

Chapter 4  Integrating Stormwater Management

Chapter 5 Stormwater Management Practices

5.1  Introduction

5.2.1  Protect Undisturbed and Healthy Soils

5.2.1.1  Preserving Landforms

5.2.1.2  Protect Erodible Soils

5.2.2  Protect and Incorporate Natural Flow Paths

5.2.3  Protect and Preserve Riparian Corridors 

5.2.4  Protect and Preserve Natural Vegetation

5.2.4.1  Protect Historic or Specimen Trees

5.2.4.2  Soil-Plant Salvage

5.3.1  Pervious Pavement

5.3.2  Infiltration Bed

5.3.3  Infiltration Trench

5.3.4  Bioretention

5.3.5  Vegetated Swales

5.3.6  Vegetated Filter Strip

5.3.7  Infiltration Berm

5.3.8  Green Roofs

5.3.9  Runoff Capture- Reuse

5.3.10  Disconnected Impervious Areas

5.3.11  Stormwater Planter Box

5.3.12  Manufactured Devices

5.3.13  Naturalized Basins

5.4.1  Recreate Natural Flow

5.4.1.1  Naturalize Swales- Drainage

5.4.2  Improve Native Landscape Cover

5.4.2.1  Change Cover Type

5.4.3  Amend Restore Disturbed Soils

5.5.1  Street Sweeping

Chapter 6  Technical Guidelines Special Areas

Chapter 7  Calculations and Methodology

Chapter 8  Maintenance and Performance

 

Appendices

Appendix A- Protocol 1

Appendix B- Protocol 2

Appendix C- Protocol 3

Appendix D- Protocol 4

Appendix E- Protocol 5

Appendix F- System Specs

Appendix G- Concept Review Meeting Application

Appendix H- Checklists

Appendix I- Construction Oversight Certification

Appendix J- Post-Construction Inspection Certification

Appendix K- Detailed Calculations Example and LID Calculation Tool

LID Calculation Tool (Revised November 29, 2017)

Authorized Agent Affidavit

        Stay-On Volume (SOV) Infeasibility Application (New November 29, 2017)

 

Credit & Incentives

 

 

RMG Education Sessions

 

ASCE-EWRI City of Chattanooga Stormwater Seminar, May 7th, 2015

The American Society of Civil Engineers Tennessee chapter of the Environmental and Water Resourcfes Institute sponsored a one day seminar on City stormwater regulations so that the development community can further understand the regulations and requirements.


ASCE-EWRI Chattanooga Stormwater Ordinances and Regulations
ASCE-EWRI Buffers
ASCE-EWRI Protecting Green Infrastructure during Construction
ASCE-EWRI What are Mitigating Circumstances?
ASCE-EWRI Geotechnical and Infiltration Testing
ASCE-EWRI Local Project Examples (for downloading) 
ASCE-EWRI Local Project Examples (for viewing on the internet)
ASCE-EWRI Stormwater Plans Review Process
ASCE-EWRI Stormwater Management within the Combined Sewer Area
ASCE-EWRI Stormwater Credits & Incentives

 

Contact Us

Department of Public Works

Development Resource Center

1250 Market Street, Suite 2100

Chattanooga, TN 37403

 
Chattanooga Water Quality Program
(423) 643-5877 . Mo Minkara, Ph.D., P.E. Manager Water Quality


Chattanooga Engineering
(423) 643-5961 . Maria Price, PE, M. ASCE Engineering Manager - Stormwater


Regional Planning Agency
(423) 643-5900 . Sarah Weeks Senior Planner

 

Return to Water Quality Home

 

 

Mission:
Serve people with integrity and improve the infrastructure and environment through excellence.

Justin Holland, Administrator
1250 Market Street
Chattanooga TN 37402 (map)
(423) 643-6311

311@chattanooga.gov  

 

Twitter bird icon  Connect with Public Works on Twitter

Water Quality Program
Mo Minkara, Ph.D.
P.E. Manager Water Quality
(423) 643-5877 

Chattanooga Engineering
Mark Heinzer, P.E., LEED AP, CPESC
CMS4S Site Development Manager
(423) 643-5800


Regional Planning Agency
Sarah Weeks
Senior Planner
(423)643-5900

Photo by Phillip Stevens and Matt Lea