FEMA’s Disaster Applications of 3D Terrain Data Doug Bausch, FEMA Region VIII Denver, CO July 25 th, 2014 Doug Bausch, FEMA Region VIII Denver, CO July 25 th, 2014

Rapid Inundation Assessment Obtain 3D terrainObtain 3D terrain Develop flood surface from model and/or field observationsDevelop flood surface from model and/or field observations Subtract terrain from flood surfaceSubtract terrain from flood surface

Minot, ND Rapid Situational Awareness

Sandy, 2012: Field Observed Flood Surface

6 Sandy 2012: Expedited Assistance -44K households identified as damaged and inaccessible -Over $130M in expedited assistance based on accurate and rapid flood depth information

NYC: 3DEP vs Low Resolution Areas “flooded” at low resolution

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Sandy, 2012: Analysis of NFIP Impacts  Flood depths assigned to 200,000+ policies  Integrated into request to increase borrowing authority –  $9.7 billion

Colorado 2013 Floods Impacts: 10 lives lost10 lives lost Over 8,000 evacuatedOver 8,000 evacuated Over $3B in lossesOver $3B in losses 138 communities with damage138 communities with damage

Colorado Flood 2013 – 3DEP Post Event Lidar Significant stream morphology changesSignificant stream morphology changes Rare use of disaster funds ($2M) to purchaseRare use of disaster funds ($2M) to purchase Partnership and expedited deliveryPartnership and expedited delivery Rapidly produced new floodplain mappingRapidly produced new floodplain mapping Denver Boulder

COLORADO FLOODING DR CO 1/3 rd of all households in Jamestown and Lyons were damaged 700 households in Lyons without water or sewer

COLORADO FLOODING DR CO Infrastructure Progress

COLORADO FLOODING DR CO Infrastructure Progress - $60M to address imminent flood threat due to debris deposition and erosion

COLORADO FLOODING DR CO

Jamestown, CO: Pre- and Post-Floodplains

-Design guidance for permanent restoration -$2.1B infrastructure restoration -includes $528M in mitigation and resiliency investments Colorado 2013 Infrastructure Restoration

Expedites response and recoveryExpedites response and recovery Supports partnerships in obtaining and expedited delivery Supports partnerships in obtaining and expedited delivery Provides high quality accurate floodplain maps Provides high quality accurate floodplain maps Supports sound decision- making and investments Supports sound decision- making and investments Helps support resilient communities Helps support resilient communities 3DEP Disaster Applications Summary