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Flood Resilience Planning Resources

Flood Hazard Data

Understanding flood risk requires knowing which areas of your community are exposed to flooding today, and which areas are expected to be exposed in the coming decades. Due to changing patterns of precipitation, sea level rise, and development, historic flooding trends are no longer a useful predictor of future risk.

Nationwide, we lack consistent, locally specific data that forecasts flooding based on multiple risk sources. The Commonwealth is closing these data gaps and providing data tools to support flood resilience planning efforts in Virginia.

DCR flood data

DCR provides two non-regulatory flood hazard datasets that can be used together with regulatory data to support more informed flood resilience planning: a coastal Virginia flood hazard dataset (developed for the Coastal Resilience Master Plan) and a statewide Fathom flood hazard dataset (procured for the Virginia Flood Protection Master Plan). The table below explores and compares these two resources.

	Coastal Virginia Flood Hazard Data	Fathom Flood Hazard Data
*Geographic Area*	Coastal: localities within any of the eight easternmost Planning District Commissions in Virginia.	Statewide: The entire Commonwealth of Virginia.
*Flood Hazards*	Coastal, riverine, and rainfall-driven flooding	Coastal, riverine, and rainfall-driven flooding
*Recurrence Intervals*	Seven recurrence intervals: 1 in 2-, 5-, 10-, 25-, 50-, 100-, and 500-year. Three tidal conditions (MLW, MHW, 1.5xMTR) are also available for coastal flood data.	*Five recurrence intervals:** 1 in 10-, 25-, 50-, 100- and 500-year.
*Associated DCR Plan*	Coastal Resilience Master Plan (CRMP)	Virginia Flood Protection Master Plan (VFPMP)
*Planning Scenarios*	Five planning scenarios: baseline (2020), plus “moderate” and “high” scenario options for the near future (2030-2060) and far future (2060-2100) time horizons.	Five planning scenarios: baseline (2020), plus two “moderate” and “higher” scenario options for the 2060- and 2100-time horizons.
*Basis for Future Conditions*	Varies by flood source and planning scenario. See reference figure for more information.	Shared Socioeconomic Pathway 2-4.5 (SSP2-4.5). “Moderate” scenario based on median (50th percentile) values and “higher” scenario based on 83rd percentile values.
*Resolution*	10-foot	10-meter (~33-foot)
*Source*	DCR with underlying data from the United States Army Corps of Engineers, the National Oceanic and Atmospheric Administration, and the Federal Emergency Management Agency.	Fathom
*Access*	View and download data and methodology documentation via DCR’s Flood Resilience Open Data Portal.	View the 1 in 100- and 500-year data for baseline conditions via DCR’s Flood Resilience Open Data Portal. Access to all other products is provided to VA public institutions.*
*其他信息*	Learn more via the one-pager.	Learn more via the one-pager.

*Virginia government entities and state-recognized Tribal governments may sub-license all Fathom data from DCR for a 12-month renewable license term. To inquire about a sub-license agreement, including data use limitations, please contact us at flood.resilience@dcr.virginia.gov.

Other flood data

Additional data to visualize and understand flood hazards is available through state and federal platforms. Below is a snapshot of these data resources which can be accessed through the links provided.

FEMA Flood Hazard Data via DCR’s 弗吉尼亚洪水风险信息系统 (VFRIS) – VFRIS compiles and displays flood hazard data from the Federal Emergency Management Agency (FEMA) including Special Flood Hazard Areas. It also provides access to links to download FEMA Flood Insurance Studies, FEMA HEC-RAS Models. These maps also display non-regulatory flood hazard data including data from and data do not incorporate future-looking projections based on changing precipitation patterns, new development or compound flood risk from tidal flooding events.

National Hurricane Center’s Storm Surge Risk Maps – includes data viewers and data downloads based on modeling which forecasts the extent and depth of storm surge resulting from hurricanes (category 1-5) for the Virginia coast.

NOAA 2022 Sea Level Rise Technical Report – provides nationwide forecasts for sea level rise through 2150. The report provides more recent forecasts than were included in DCR’s coastal resilience web explorer and Phase I of the Coastal Resilience Master Plan. NOAA’s Sea Level Rise Viewer allows users to map and download the data.

NOAA Mid-Atlantic RISA Projected IDF Curve Data Tool – county-level tool for forecasting changes in precipitation depths from historic ATLAS-14 modeling to two future conditions (2020-2070 and 2050-2100) under two emissions scenarios (RCP 4.5 and RCP 8.5). The model forecasts precipitation change across six average recurrence intervals (2-year to 100-year) and 14 durations (5 minute to 7 day).

Tools for Planning

There are many tools to aid organizations in crafting a flood resilience plan. Below is an abbreviated list of useful planning tools. Additional tools can be found on the information gateways linked below.

Tools specific to Virginia

The following tools were developed with Virginia-specific needs in mind. While some are focused on exploring flood resilience specifically, others support resilience planning more broadly.

CFPF Resilience Plans - a DCR-approved Resilience Plan is required for localities submitting applications in the "project" category of the Community Flood Preparedness Fund. The requirements for an approved resilience plan can be found in Appendix F of the CFPF Grant Round 6 draft manual.

ADAPT VA – an information gateway on climate change adaptation for individuals, local programs, and agencies in Virginia. The website provides a variety of resources such as short and long-term sea level curves and maps, flood mapping and decision-support tools, legal and policy resources, and stories that explain adaptation through maps and pictures.

Proactive Planning for Resilience: Protocols for Community-Led Climate Adaptation Planning in Virginia – a Virginia-specific guide for climate adaptation planning for decision-makers across the Commonwealth. The website outlines steps for developing a plan, with detailed case studies, definitions, tools, legal considerations and best practices.

The RAFT and PREP Tool – The Resilience Adaptation Feasibility Tool (RAFT) Team is a Virginia state university partnership which brings capacity building and technical assistance to local governments over a period of 18 months to help build their resilience. Their team’s PREP Tool provides access to the RAFT’s methods and approach for assessing local government capacity for resilience and identifying and prioritizing projects to implement.

Federal Tools

Federal agencies have developed tools to assist organizations to plan and implement successful flood resilience strategies. The following resources may help you to craft your resilience plan.

US Climate Resilience Toolkit – a national portal that includes a variety of tools for building resilience to flooding impacts, including the Steps to Resilience Framework, which outlines a straightforward process for creating a resilience plan alongside resources to use to get there.

USACE’s International Guidelines on Natural and Nature-Based Features for Flood Risk Management – consolidates best practices for constructing natural and nature-based features for flood risk management into a guidance document for decision-makers and practitioners to use when considering these practices in flood resilience plan development.

US DOI Nature Based Solutions Roadmap – outlines information on nature-based solutions, including specific strategies, considerations for implementation, co-benefits, examples, and resources.

信息门户

These portals and databases contain a variety of resources – such as data, planning tools and funding information – that may be useful to your organization as you develop your resilience plan:

规划和实施资金

Organizations developing flood resilience plans should consider approaches which align both with DCR’s flood resilience plan guidance, as well as with federal resources and funding opportunities. Resources to help you understand how to align your approach to resilience planning with available funding resources include:

DCR Flood Resilience Funding Resources

DCR administers the Community Flood Preparedness Fund (CFPF) and the Resilient Virginia Revolving Fund (RVRF). For more information on these funds visit the DCR Floodplain Management, Flood Resilience Funding website.
Beyond the DCR administered resilience funds, the Coastal Resilience Web Explorer Funding Opportunities tab provides an inventory of funding sources that may be available to finance the development and/or implementation of your plan. While it is catered to the coastal region, non-coastal activities may be eligible for some listed opportunities.
The DCR Flood Resilience Funding Geographic Focal Area Viewer identifies geographic areas that are designated as either required or preferred for resilience funding, including Low-Income Geographic Areas for the DCR Community Flood Preparedness Fund.

Other Funding Resources

联邦紧急事务管理局（FEMA）和弗吉尼亚州紧急事务管理局（VDEM）

美国陆军工程兵团（USACE）

Flood Risk Management Mission to learn more about the Corps’ available assistance programs.
Division and District Information to determine the appropriate point of contact to learn more. USACE is broken into watershed-based divisions and districts.

Others

报告

与弗吉尼亚州防洪规划相关的历史报告可通过下面的下拉菜单存档。

2025 Commonwealth of Virginia 弹性状况更新

在 2024 大会会议期间，众议院议案 1458 修改了《Virginia法典》中的抗洪状况报告的要求（§ 2.2-220。5)包括 Commonwealth 的整体抗灾能力，包括抗洪能力。该报告于7月 2025 发布，此后每两年发布一次，包括首席抗灾官和州机构在抗灾能力协调和规划方面采取的行动状况，以及Commonwealth在过去两年中收到和分配的所有抗灾资金。

阅读 2025 Commonwealth of Virginia 现状更新中的韧性

2023 Resilience Coordination Working Group Report

下载完整的复原力协调工作组最终报告和建议
下载简略版《复原力协调工作组最终建议》

弗吉尼亚联邦大学 (VCU) 公共政策中心 (CPP) 在联邦洪水灾害恢复力中心 (CCRFR) 的资金支持下，为 RCWG 提供了便利。

2023防洪状况报告

2023 ，弗吉尼亚州首席防洪官根据《弗吉尼亚州法典》（§ 2 . 2 - 220 . 5 ）的规定，向州长和州议会发布了一份关于弗吉尼亚州防洪状况的两年期报告。

阅读2023 《抗洪现状报告》。

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