Cindy Popplewell AMEC Hazard Mitigation & Emergency Management Program 2/15/2019 Nashville Flood Recovery Efforts Assessing Damage to Homes and Stormwater Infrastructure Cindy Popplewell AMEC Hazard Mitigation & Emergency Management Program Nashville, TN

Overview May 1-2, 2011 Flood Event Specific Information 2/15/2019 May 1-2, 2011 Flood Event Specific Information Pre-Event Conditions Rainfall – Forecast and Actual Resultant Flooding Summary Resultant Damage Statistics Areas of Flood Recovery – AMEC Assistance to Metro Nashville and Tools Enforcement of Flood Ordinance – Substantial Damage Determinations Public Assistance Grant Program – Project Identification and Formulation

Pre-Event Conditions Metropolitan Nashville-Davidson County, TN Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Pre-Event Conditions Metropolitan Nashville-Davidson County, TN Area - 533 square miles Population - 570,000 NFIP participant; CRS Class 8 340 miles of FEMA Streams 10,000 Parcels in Floodplain 8,000 Structures in Floodplain Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Pre-Event Conditions 2011 - February to April 2/15/2019 2011 - February to April Only 40 to 80 percent of normal precipitation in TN/KY NOT a wet period, below normal streamflows

Rainfall – NWS Prediction (3-day) Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Rainfall – NWS Prediction (3-day) Friday Night April 30 Saturday Morning May 1 Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Rainfall – Saturday, May 1st Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Rainfall – Sunday, May 2nd Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Rainfall - Two Day Pattern Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Rainfall - Two Day Pattern 7.2 inches 6.13 inches Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Rainfall - Totals for May 1 & 2 Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

2/15/2019

2/15/2019

2/15/2019

Resultant Flooding Summary 2/15/2019 First Runoff Response – Saturday Sharp rises on nearly all streams and rivers Second Runoff Response – Sunday 2nd rise on smaller creeks and renewed acceleration in water levels along larger creeks and streams nearing crest.

Resultant Flooding Summary 2/15/2019 Cumberland River Reached Flood Stage Sunday Crested 11.9 feet Above Flood Stage Receded Below Flood Stage Thursday Evening Highest Stage Since 1937

Resultant Damage Summary 2/15/2019 Residential Property Damage 10,940 properties damaged (combination of Metro Codes and self-reporting) 5,850 of the reported properties are located outside of the 100-year floodplain Category Flood Depth Homes 1 – Minimal Below Floor 2931 2 – Moderate < 2 ft 1671 3 – Major 2 ft - 6 ft 2643 4 - Severe > 6 ft 1844

Resultant Damage Summary 2/15/2019 Other Property Damage 2,770 businesses across the city sustained flood damage 14,500 employees $3.6 billion in annual revenue 115 Metro roads were closed to traffic

Flood Recovery Efforts Code Enforcement Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Flood Recovery Efforts Code Enforcement Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Recovery Efforts Immediate Pressure to Issue Building Permits Decision Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Recovery Efforts Immediate Pressure to Issue Building Permits Decision Moratorium? Relax Regulations? Lowest Floor Elevation BFE + 4 feet Enforce the local floodplain ordinance Determine the percent damaged How can we do that most efficiently? Streamline the permit process Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Recovery Efforts FEMA SDE Software Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Recovery Efforts FEMA SDE Software Stress attention to those houses in the 25% to 75% damage range Initial Determination USACE Depth-Damage Curves Chose Method Utilized by IN, OH, & OK What kind of house? How deep was the water? Between 40 and 50% Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Header text if required. Max 2 lines Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Header text if required. Max 2 lines Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Header text if required. Max 2 lines Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Header text if required. Max 2 lines Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Header text if required. Max 2 lines Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Header text if required. Max 2 lines Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Header text if required. Max 2 lines Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Recovery Efforts - Update Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Recovery Efforts - Update 4800+ Damage Assessments 3915 - Under 40% 483 - 40-50% 421 - Over 50% Home Buyout Program Floodway Substantially Damaged 305 Homes Identified 247 (93%) Want to Sell Funding for Program 5 HMGP applications; Cost Share - 75/12.5/12.5 Approval for 1st two grant applications Hazardous Materials and Asbestos Remediation Completed demolition and site restoration on 10+ Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Flood Recovery efforts Repairing SW Infrastructure Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Flood Recovery efforts Repairing SW Infrastructure Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Public Assistance Grant Program Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Public Assistance Grant Program Repair to Stormwater Infrastructure Identify Damage Data Collection Storm related? Responsible Party? Eligible? Project Formulation Scope and Cost Estimate Project Worksheets Project Management Construction Management Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Recovery Efforts Windows Mobile OS GPS Enabled Touch Screen Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Recovery Efforts Rapid Data Collection Concept to Upload Data in Real Time Rather Than End-of-Day Selected HTC Tilt2 Smartphone (AT&T) for Field Data Collection Windows Mobile OS GPS Enabled Touch Screen Built-in Camera Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Header text if required. Max 2 lines Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Header text if required. Max 2 lines Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab

Header text if required. Max 2 lines Header text if required. Max 2 lines. To amend/delete cllick View >> Header & Footer>> Notes & Handouts tab Questions ? Footer text if required. Max 2 lines. To amend/delete click View >> Header & Footer>> Notes & Handouts tab