Flood Mapping, Risk MAP Products, & Risk Assessments

FEMA is charged with producing and maintaining the Flood Hazard Information to support the National Flood Insurance Program. FEMA, through the Risk MAP Program, also produces other products to help increase risk awareness and lead to actions that reduce risk across the Nation. The Risk MAP Program seeks to advance actions by working with States, tribes, and local communities to identify potential mitigation actions they can take to reduce risks, delivering products such as risk assessment information to the community to help them better understand and manage their risks.

Please share ideas on making the Flood Mapping development as well as the creation of the other Risk MAP Products more efficient and streamlined including ways to identify and utilize the best available data for every community and have that data available for awareness, risk assessment, and risk management decision making.

Flood Mapping, Risk MAP Products, & Risk Assessments

Increased Funding for Unmet Floodplain Mapping Needs

The Map Mod process ended with significant unmet map needs. Studies were conducted using out-of-date hydrology (sometimes 30+ years old) and hundreds of miles of Zone A streams were mapped on USGS topography without BFE's. RiskMAP evolved concentrating on outreach with a minimal mapping effort. The Technical Mapping Advisory Council, identified in BW-12 is badly needed to summarize mapping needs and rekindle, if necessary, ...more »

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Flood Mapping, Risk MAP Products, & Risk Assessments

Dealing with Zone A flood zones

Nearly 80% of FEMA's map inventory is comprised of riverine miles that do not have water-surface elevations associated with them. Without these elevations, effectively managing these floodplains is a challenge at a local level. Should FEMA be more concerned with producing a FIRM product that escalates these flooding sources to a flood study with detailed engineering information (i.e. BFEs, floodways, depth grids, etc) ...more »

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Flood Mapping, Risk MAP Products, & Risk Assessments

Interactive Tables and Profiles

Be able to develop things like a cross section table or profile on the fly. Somehow be able to select an area and then automatically generate the information for just your area of interest. Or be able to click on the profile baseline (or maybe a cross section) and be able to pull up the image of the pre-canned profile or cross section table for the selected point. For our area cross sections tables should also include ...more »

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Flood Mapping, Risk MAP Products, & Risk Assessments

generating demand

FEMA needs to leverage its current investment in RISK MAP by fostering the dissemination and interaction of RISK MAP data to include DFIRM’s, LIDAR, Flood Risk Reports, Areas of Mitigation Interest, Flood Insurance Studies, and other Non-Regulatory Products. There is a need for a robust, layered, public facing web viewer that allows homeowners access to flood hazard information which, they can use and understand to make ...more »

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Flood Mapping, Risk MAP Products, & Risk Assessments

Map Change Viewer (National Solution)

To ensure stakeholders fully understand the changes occurring as a result of the issuance of a preliminary FIRM, a more robust map viewing option is recommended for this information. Currently, the preliminary and effective FIRMs for any given community are viewable separately through the Map Service Center website in pdf format. However, in some cases, FEMA Regions have developed enhanced map viewing tools which allow ...more »

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Flood Mapping, Risk MAP Products, & Risk Assessments

Unmodernized map panels

FEMA constantly hears concerns about completing the job of Map Modernization and fully modernizing the remainder of the paper map inventory. Are there current technologies or techniques that FEMA should consider in order to address this issue in the near future?

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Flood Mapping, Risk MAP Products, & Risk Assessments

Online Appeal Submittal Tool

Functionality could be built into an online preliminary map viewing tool or deployed as a separate tool that allows for the digital submittal of appeals to preliminary flood hazard data by communities. During the appeal period, this functionality could be activated which allows a registered community official to upload appeal packages including supporting files and the community’s own comments about the submittal. The ...more »

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Regulatory Enhancements using Non-Reg Data?

While the non-regulatory products are great for communicating flood risk, FEMA would be well served by looking at ways to use them to enhance their regulatory products, and thus help them more closely achieve their digital vision. For example, with the right level of quality control, the water surface elevation grids could be used as an eventual replacement to the flood profiles themselves. Point-and-click BFEs, greater ...more »

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Investing in Multi-frequency Depth Grids

Multi frequency depth grids can be used in performing many different types of analyses such as Average Annualized Losses and Benefit Cost Analyses that can be instrumental in facilitating community action. Further, they can be used for even risk based analyses, which has been recommended by the National Academy Sciences to FEMA. It would also have great benefit to FEMA’s many disaster programs. FEMA should invest in ...more »

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Flood Mapping, Risk MAP Products, & Risk Assessments

Get rid of paper maps

Preparing paper maps that are slaves to FIRM panel boundaries is a large cost in both initial map preparation and in preparing LOMR exhibits. Get rid of paper panels and use the savings in other areas such as modernizing more paper maps or more community engagement. There are some areas of the country that cannot go all electronic but there must be ways to address their needs without letting them drive the entire program ...more »

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Store Effective Models & Terrain Data at MSC

FEMA needs to follow Maryland and others examples of storing the effective H&H models and terrain data used to create the floodplain boundaries in an easily used extraction system. The current system is chaotic and effective models are often lost at the FEMA library over time. This would allow more cost effective LOMRs and restudies if the original digital model was readily accessible.

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Varying levels of levee ceritification

There ought to be varying levels of levee certification based on the type of flooding source. For example, a 40-foot tall levee along the Missouri river that could be impounding water for weeks or months is very different from an ephemeral stream in the west that will only convey 60 cfs in a 100-year event for an hour or two. Right now, both of these levees are required to be built based on the same standard with the ...more »

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