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Stormwater Variance Requests

Three types of variances from the Stormwater Drainage Manual are possible: Downtown, Non-Stream, and Stream Protection. This guidance document explains the application process.

Interested Party List for Variance Requests: If you would like to receive notice of any variance requests the City receives, please send notice of your interest to Cheryl Smith at: CLSmith@columbus.gov or 1250 Fairwood Avenue, Columbus OH 43206.

Comments: If you would like to comment on a variance request, please submit your comment(s) to Cheryl Smith at CLSmith@columbus.gov or at 1250 Fairwood Avenue, Columbus OH 43206. Comments can be made up to fourteen (14) days after a request is posted. If you need additional time to comment, beyond the time allotted, please submit that request with an explanation of why more time is necessary.  


VIEW SUBMITTED VARIANCE REQUESTS: 

1383 Vida Way - Post Oak Station Renovation and Early Learning Center Development 
Type III Variance Request Dated 9/24/2020; Posted 10/12/2020

155 East Broad Street Plaza Type I SWDM Variance  
Type I SWDM Variance Request Dated 7/31/2020 & Cover Letter Dated 7/20/2020; Posted 8/17/2020
City Response Letter Dated 10/21/2020; Posted 10/23/2020

1431 Community Park Drive Type II SWDM Variance
Type II Variance Request
 Dated 6/15/2020; Posted 6/30/2020 NOTE: May have to use scroll bar once PDF files opens; scroll right.
City of Columbus Response Letter
Dated 8/3/2020 (Posted 8/4/2020)

Columbus Crew Training Facility
City Response to Variance Request
Dated 6/26/2020; Posted 7/14/2020
Stormwater Variance Request 6/5/2020
This 23-page report lays out the current and proposed conditions, three proposed alternatives and supporting documents for a Type II Non-Stream Protection Variance 

1431 Community Park Drive Type II SWDM Variance
Type II Non-Stream Protection Variance - Dated 3/19/2020; Posted 4/13/2020
Type II Variance Request - Dated 10/16/2019 (13 Pages)
Purpose
Section 1 Variance Request
Section 2 Proposed Alternatives
Appendices
Appendix 1 - Full Compliance Alternative Site Plan
Appendix 2 - Minimal Impact Alternative Site Plan
Appendix 3 - Preferred Alternative Site Plan

Sussex Place Section 3, Phases 1 & 2 Type III SWDM Variance
Type III Variance Request - Dated 9/17/2019 (16 Pages)
Project Introduction
Development Alternatives
Proposed Mitigation
Conclusions
Tables
Table 1: Comparison of Project Alternative Impacts
Figures
Figure 1: StreamStats Drainage Area
Figure 2: Original Approved Section 3 Development Layout
Figure 3: Revised Development Layout w/ Stormwater Considerations
Appendices
Appendix A: Stream Corridor Protection Zone Exhibits

City of Columbus Response-Conditional Approval (Posted 1/9/2020)

Research Alloys Type III SWDM Variance
Type III Variance Request - Dated 9/6/2019 (12 Pages)
Purpose
Section 1 Project Background
Section 2 Site Development Alternatives
Section 3 Mitigation
Exhibits
A: Ex Conditions Pre 2006
B: Ex Conditions Post 2006
Alternative 1: Full Compliance
Alternative 2: Minimal Impact Option
Alternative 3: Preferred Alternative
Preliminary Restoration Plan

City of Columbus Response-Conditional Approval (Posted 1/22/20)

Wendler Commons Type III Variance 
Type III Variance Request - Dated 7/18/19 (40 Pages)
City of Columbus Response-Conditional Approval (Posted 8/20/19)

Compost Facility Type II SWDM Variance 
Type II Variance Request - Dated 5/20/2019 (Includes 17 pages)
Introduction and Site Conditions
Site Development Alternatives
Conclusions
Attachments:
Attachment A: Leachate Characteristics
Attachment B: Site Plans

City of Columbus Response - Conditional Approval Posted 9/19/2019

Municipal Light Plant Type I SWDM Variance
Type I Variance Request
- Dated 12/6/18 (Includes 14 pages)

Sancus Boulevard Apartments SWDM Variance

Type III Variance Request Posted 11/6/2018 (Includes 30 Pages)
Cover Letter, Introduction, Type III Variance, Tables, Maps & Attachments

Greensward Road SWDM Variance

Type III Variance Request Posted 10/12/2018 (Includes 37 Pages)
Cover Letter, Introduction Type III Variance (Stream Protection), Mitigation, Conclusions, Tables and Exhibits

Comments Received from Public (Dated 10/26/18)
Response from EMH&T to 10/26/18 Comments (Response Dated 11/6/18)
Response from EMH&T to Comments Received during 12/4/18 Meeting (Response Dated 12/12/18)

OARS Site Restoration SWDM Variance
Type II Variance Request Posted 6/18/2018 (Includes 177 Pages- May need to adjust view or scroll right or left to see entire document)
Introduction, Site Development Alternatives, Conclusions, Maps, Exhibits

Hyatt Place SWDM Variance
Revised Type III Variance Request
 
Posted 08/13/2019 (Includes 60 pages)

Introduction, Determination of the Stream Corridor Protection Zone, Type III Variance (Stream Protection), Mitigation, Conclusion, Tables, Summary of Alternatives
City of Columbus Response - Conditional Approval Posted 12/4/2019

Type III Variance Request Posted 6/6/2018 (Includes 36 Pages - May need to adjust view or scroll right or left to see entire document)
Cover Letter, Introduction, Determination of the Stream Corridor Protection Zone, Type III Variance (Stream Protection), Mitigation, Conclusion, Tables and Exhibits
Sierra Club Variance Comments Posted 8/8/2018
City of Columbus Request for Additional Information Posted 11/6/2018
Variance Guidance Letter Posted 11/6/2018
SCPZ Exhibits Posted 11/6/2018
Stream 100 Year Flood Elevation Posted 11/6/2018

SR 315 & North Broadway Interchange Improvements
Type III Variance Request Posted 5/03/2018 (Includes 18 Pages)
Appendix A: Project Location Map
Appendix B: Project Overview Map
Appendix C: Baseline Stream Information (Includes 13 Pages)
Appendix D: Meeting Minutes from December 5, 2016 Design Workshop (Includes 20 Pages)
Appendix E: Culvert Headwater Exhibits
Appendix F: Alternative Exhibits
Appendix G: Proposed Stream Mitigation Exhibits (Includes 16 Pages)

FLOW Stormwater Variance Comments Posted 5/16/2018
City of Columbus Response Posted 7/25/2018

OhioHealth East-West Road Improvements SWDM Variance
Type III Variance Request Posted 12/22/2017 (Includes 28 Pages)
Cover Letter
Introduction
Project Requirements
Type III Variance (Stream Projection)
Mitigation
Conclusions
Tables
Table 1: Comparison of Alternatives for East/West Roadway Improvements 
Table 2: SCPZ Mitigation Alternatives for East/West Roadway Improvements
Figures
Figure 1: SCPZ Impact Location Map 
Figure 2: Optional Offsite SCPZ Mitigation Location Map
Photographs
Exhibits
Sheet 1 East/West Road SCPZ Variance – Slyh Run Watershed and SCPZ
Sheet 2 East/West Road SCPZ Variance – Preferred Plan
Sheet 3 East/West Road SCPZ Variance – No Impact Plan
Sheet 4 East/West Road SCPZ Variance – Onsite Mitigation Plan
Sheet 5 East/West Road SCPZ Variance – Optional Offsite Mitigation Plan
Appendices
Appendix A: Plan and Profile Sheets

Columbus Regional Airport Authority Consolidated Rent-A-Car Facility (CRAA ConRAC)
Type III Variance Request Posted 12/12/2017 (Includes 36 Pages)
Cover Letter
Introduction
Project Requirements
Type III Variance (Stream Projection)
Mitigation
Conclusions
Tables
Table 1: ConRAC Project Needs
Table 2: Comparison of Project Alternatives
Table 3: Stream Mitigation Credit Balance at Walnut Woods
Figures
Figure 1: Stream Impact Location Map
Figure 2: Part 77 Surfaces
Figure 3: Drake Road Site
Figure 4: Mitigation Location Map
Figure 5: Big Run Pre- and Post-Restoration Conditions
Photographs
Exhibits
Sheet 1 CRAA ConRAC Mason Run Watershed and SCPZ
Sheet 2 CRAA ConRAC SCPZ Variance - Preferred Plan
Sheet 3 CRAA ConRAC SCPZ Variance- Minimal Impact Plan
Sheet 4 CRAA ConRAC SCPZ Variance - Mitigation Plan
Appendices
Appendix A: HHEI and QHEI Forms
Appendix B: Restoration Plan at the Former Eastside Nursery Site (As-Built Plan) Posted 12/12/2017 (Includes 39 Pages)
Title Sheet, General Notes, Supplemental Specifications and Quantities, Index Sheet, Existing Conditions Site Plan, Stream Details, Stream Planting Plan, Wetland Plan Views, Wetland Cross Sections, Wetland Details, Wetland Planting Plan, Walnut Creek Bank Stabilization Plan, Reforestation Plan, Pedestrian Bridge Plan and Profiles, Pedestrian Bridge Abutment Details, Erosion Control Notes and Details, Erosion Control Overall Plan, Stream Staking Plan and Wetland Staking Plan
Appendix C: Walnut Woods and Wetland Monitoring Report-2016 Posted 12/12/2017 (Includes 356 Pages)
Introduction
Stream and Wetland Mitigation Plan
Monitoring Methodology
Stream Monitoring Results
Stream Management Activities
Stream Performance Standard Review
Wetland Monitoring Results
Conclusions
Citations
Tables
Table 1:  Projects for Mitigation at Walnut Woods
Table 2:  Type and Quantity of Credit Banked at Walnut Woods
Table 3:  Stream and Wetland Monitoring Schedule
Table 4:  Dimension Measurements for the Surveyed Cross-Sections
Table 5:  Dimension Measurements for the Relocated Stream
Table 6:  Big Run QHEI Scores
Table 7:  Big Run IBI Scores
Table 8:  Stream Performance Review
Table 9:  Development of Wetland Area and Mitigation Credit Utilized
Table 10: Forested Wetland Plot Review
Table 11: Forested VIBI-E Plot Summary
Table 12: Forested VIBI Plot Review
Table 13: Non-Forested Wetland Plot Review
Table 14: Non Forested VIBI-E Plot Summary
Table 15: Non-Forested VIBI Plot Review
Appendices
Appendix A: Permits Utilizing Mitigation Credit at Walnut Woods
Appendix B: Environmental Covenant
Appendix C: Stream Data Forms
Appendix D: Big Run QHEI Forms
Appendix E: Big Run IBI Data Forms
Appendix F: Summary of Recent Management Activities
Appendix G: Wetland Data Forms
Appendix H: Forested VIBI Data Forms
Appendix I: Non-Forested VIBI Data Forms
Exhibits
Exhibit !: Area Location Map
Exhibit 2: Mitigation Overview Map
Exhibit 3: As-Built Plan, Longitudinal Profile and Geomorphic Summary
Exhibit 4: Stream Planting Plan
Exhibit 5: Wetland Planting Plan
Exhibit 6: Invasive Plant Distribution
Fixed Station Photographs

Jackson Pike Wastewater Plant Biosolids Land Application Improvements
J220 Biosolids Land Application Improvements-Stormwater Drainage Manual Variance Request Posted 08/03/2017 (Includes 7 Pages)
Figure 1- J220 Site Modifications
Table 1- LOS Area Stormwater Drainage Criteria
Table 2- LOS Area Pre- and Post-Construction Flow Comparison
Table 3- Pre- and Post-Construction Runoff Volume Comparison
Table 4- Stormwater Quantity Control Facilities
Figure 2- Underground Storagae Tank Location
Table 5- Full Compliance Opinion of Probable Construction Cost
Table 6- Pre- and Post-Construction Flow Rates for LOS Area with Bioretention Facility
Table 7- Projected Flow Conditions to Whims Ditch from LOS Area
Table 8- Summary of Alternatives

City of Columbus Response posted 9/18/2017

Battelle South Development Project
Type II & III Variance Request
 Posted 7/13/2017 (Includes 23 Pages):
Cover Letter
Reason Variances are Requested
Site Development Alternatives
Demonstration of Adequate Mitigation
Summary & Exhibits

FLOW Stormwater Variance Comments Posted 7/27/2017
City of Columbus Response posted 6/7/2018

Gateway Lofts
Variance Request Cover Letter
 Posted 7/13/2017
Gateway Lofts - Type II Variance from Stormwater Drainage Manual Includes 29 pages: 
Type II Variance
Water Quality Impacts/Quality Impacts
Site Development Alternatives
Figure 1 - Site Area Map
Appendices:
Appendix A: Preferred Alternate Plan
Appendix B: Minimal Impact Alternate Plan
Appendix C: No Impact Alternate Plan
Appendix D: Easement for Storm Sewer Discharge

City of Columbus Response posted 12/13/2017

Marble Cliff Quarry Development Project
Marble Cliff Quarry Development Project Variance Request Posted 06/12/2017
Includes:
Variance Request Letter
Appendices:
A. Site Layout, FEMA Mapping
B. Report of Jurisdictional Determination
C. Army Corps of Engineers Non-Jurisdictional Determination
D. Summary of Preliminary Hydrologic and Hydraulic Analyses

Marble Cliff Quarry Development Project Type II and III Variance Requests Posted 02/04/2019
Includes 349 Pages:
Introduction
Project and Site Information
Sections:
1. Reason Variances are Requested
2. Site Development Alternatives
-Type II, SWDM Section 1.4 Variance
-Type II, SWDM Section 3.2 Variance
-Type III, SWDM Section 1.3 Marble Cliff Quarry Development Variance
-Type III, SWDM Section 1.3 Columbus and Franklin County Metro Park Variance
3. Demonstration of Adequate Mitigation
4. Executive Summary
Appendices:
Appendix A1 - Columbus & Franklin County Metro parks Quarry Trails Metro Park Type III Variance Request (Burgess & Niple, Inc.)
Appendix A - Site Location Map
Appendix B - Site Overview Map
Appendix C - Parcel Deed Declaration
Appendix D - Stormwater Drainage Easement Declaration
Appendix E - Baseline Stream Information
Appendix F - OEPA Rule 13 Authorization
Appendix G - Flood Impact Study Report
Appendix H - Preferred Site Rendering
Appendix I  - Floodplain Fill Alternatives
Appendix J  - Marble Cliff Quarry Development SCPZ Encroachment Alternatives
Appendix K - Columbus & Franklin Co. Metro Park SCPZ Encroachment Alternatives
Appendix L -  Proposed Stream Mitigation Exhibits

Variance Disposition Letter from E.P. Ferris and Associates, Inc. in response to 3/19/2019 comments (Response dated 4/8/2019)
Response Letter Posted 06/18/2019

Marble Cliff Quarry Development Project Type II Stormwater Variance Request Posted 09/04/2019
Includes 15 Pages
Introduction
Sections:
1. Reason Variance is Requested
2. Site Development Alternatives
3. Executive Summary
Appendices:
Appendix A - Site Development Alternatives
Appendix B- Utility in Trash Detail

City of Columbus Response - Conditional Approval Posted 10/25/2019

OhioHealth Administrative Offices and North Parking Lot
View Comments from Friends of the Lower Olentangy (FLOW) Posted 7/13/2017
OhioHealth Admin Offices and North Parking Lot Variance Request Posted 06/21/2017
Includes 30 Pages:
Variance Request Letter
Figures:
1. SCPZ Impact Location Map
2. Comparison of Alternatives for North Parking Lot
Exhibits:

1. OhioHealth Headquarters Slyh Run Watershed and SCPZ
2. OhioHealth Headquarters SCPZ Variance – Preferred Plan
3. OhioHealth Headquarters SCPZ Variance – No Impact Plan
4. OhioHealth Parking Lot Turkey Run Watershed and SCPZ
5. OhioHealth Parking Lot SCPZ Variance – Preferred Plant
6. OhioHealth Parking Lot SCPZ Variance – No Impact Plant
7. OhioHealth SCPZ Variance – Mitigation Plan
8. OhioHealth SCPZ Variance – Mitigation Plan
Appendices:

A. OhioHealth Administrative Offices Overall Storm Sewer and Grading Plan
B. OhioHealth North Parking Lot Overall Grading Plan

City of Columbus Response posted 7/31/2017

Family Dollar-Courtright Road
Family Dollar-Courtright Road Variance Request  Posted 09/15/2016
Includes Variance Request Letter, Exhibits 1, 2 & 3 (proposed alternatives)
City of Columbus Response 10/20/16 includes Tree Protection and Mitigation
Design Contractor Response 10/28/16 includes site plans below:
Variance Site Plan
Site Plan - South Shift
Family Dollar Courtright SCPZ Variance Request  Posted 11/16/2016
Family Dollar Courtright Road Tree Mitigation Plan 01/11/2017 includes Tree Demolition Plan, Tree Planting Plan and Tree Planting Specifications 

UPS Trabue Road Expansion
UPS Trabue Road Expansion Variance Request  Posted 08/19/2016
Includes Variance Request Letter, Exisiting Site Overview Map, Minimum Impact Option, Proposed Work and Appendix B:Preconstruction Notification to the US Army Corps of Engineers Under Section 404 Nationwide Permit