Overview

Use the tools below to answer two questions about flood risk to assets (buildings, utilities, etc.)

Question #1: Asset Flood Risk -- How likely is an asset to flood over a given time period?

Question #2: Asset Design Height -- What elevation does an asset require in order to achieve a specified level of protection against flooding over a given time period?

The tools below specify elevation as height in feet above the MLLW vertical datum. Subtract 5.26 feet to convert to NAVD88.

Question #1: Asset Flood Risk

Input the following information to determine asset flood risk:

• Height (feet above MLLW): The elevation of your location or asset in feet above MLLW. Click your location on the Detailed Flood-Risk Map to get the elevation of the ground. If your asset is mounted above the ground, measure its height above the ground and add that to the ground elevation from the map.
• End year: End of the time period.
• Sea level rise scenario: High or Intermediate

Question #2: Asset Design Height

Input the following information to determine asset design height:

• End year: End of the time period over which you would like to main a desired level of flood protection
• Maximum tolerable annual flood risk: The maximum annual flood risk you can tolerate for your asset

Result: To maintain flood risk below through under the sea level rise scenario, an asset must be at an elevation of feet ( meters) above MLLW.