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Flooding

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Report
How Do Multiple-Loss Properties Drive Flood Insurance Costs?
Most natural disasters in the United States involve floods, and climate change is increasing their frequency and severity. More data on the properties that experience multiple flood losses can help inform decisions related to floodplain management, insurance, and mitigation efforts.
Jul 19, 2023
Commentary
Stormwater Management in the Mid-Atlantic Region
In the Mid-Atlantic region, flooding caused by extreme precipitation has occurred nearly every season since 2018—and the problem is only getting worse. How can stormwater management agencies use information about climate change to better mitigate flood risk and damage?
Aug 30, 2023

Explore Flooding

Report
Landscape Survey to Support Flood Apex National Flood Decision Support Toolbox: Definitions and Existing Tools
This report summarizes the literature on resilience to flood risk, its analysis and measurement, and examples. It also catalogs decision support tools for flood mitigation and makes recommendations for further investigation of the tools.
Sep 7, 2017
Report
Reducing Coastal Flood Risk with a Lake Pontchartrain Barrier
A Lake Pontchartrain barrier could provide substantial damage reduction benefits—including reduced flood depths and preventing direct economic damage—for southeastern Louisiana, potentially amounting to billions of dollars saved per year.
Aug 4, 2017
Report
Robust Stormwater Management in the Pittsburgh Region
The city of Pittsburgh and its surrounding region face significant—and potentially growing—stormwater management challenges. Analysis can help better understand the system's vulnerabilities and identify solutions.
Apr 24, 2017
News Release
Rising Flood Insurance Costs a Growing Burden to Communities and Homeowners in New York City
Hurricane Sandy underscored the need for greater resilience to flooding. Insurance is part of the strategy, but it is spotty among one- to four-family properties in New York and is difficult for some to afford. Adding to the challenge is direction from Congress to phase out subsidies in the National Flood Insurance Program.
Mar 27, 2017
Research Brief
How Affordable Is Flood Insurance in New York City and What Can Be Done to Address Affordability Issues?
This research brief examines the affordability of flood insurance in New York City and what can be done to address the affordability issue.
Mar 27, 2017
Report
Flood Insurance Costs Rising in New York City
Hurricane Sandy highlighted the importance of efforts to promote resilience. Flood insurance is a key component, but it's hard to afford for some households in New York City. What are some options for a program that helps reduce the impact of higher premiums?
Mar 27, 2017
Report
Evaluation of the Jinan City Water Ecological Development Implementation Plan and Recommendations for Improvement
RAND evaluated potential effects of uncertain projections of demand and climate change on the ability of the Jinan Municipal Water Resources Bureau to meet its long-term water resources goals for Shandong Province's capital city.
Mar 9, 2017
Report
Exploring Funding Allocations to Best Support Louisiana's Flood Risk and Resilience
States that have recently experienced a presidentially declared major disaster can apply for funds through the Natural Disaster Resilience Competition. For Louisiana's application, RAND provided a quantitative analysis of baseline flood risks under different amounts of investment in three parishes.
Mar 1, 2016
Journal Article
Bias and Efficiency Tradeoffs in the Selection of Storm Suites Used to Estimate Flood Risk
This study examines methods for estimating storm surges and flood statistics.
Feb 26, 2016
Commentary
Why Engineers Need to Be Thinking About Climate Change
As sea levels rise and extreme weather events become more common, evacuation routes in coastal areas will become more important. Transportation engineers need to be more proactive as they try to anticipate damage to pavement, bridges, and culverts.
Feb 22, 2016
Blog
Hurricane Katrina: 10 Years After the Storm
This weekend marks 10 years since Hurricane Katrina ravaged the Gulf Coast. As the region struggled to cope and rebuild after the storm, RAND experts worked on solutions to the region's long-term challenges.
Aug 27, 2015
Commentary
Future of Coastal Flooding
President Obama's executive order that directs federal agencies to plan and build for higher flood levels as they construct new projects in flood-prone regions will affect hundreds of billions of dollars of future public works projects. In an ideal world, planners would estimate the benefits and costs for each project, taking into account everything from the details of the local landscape to the potential for adaptive responses over time.
Feb 25, 2015
Research Brief
How RAND Supported the Development of Louisiana's Comprehensive Master Plan
To plan the rebuilding of the Louisiana coastline, the Coastal Protection and Restoration Authority used a new analytic approach, developed in part by RAND, that incorporates results from state-of-the-art predictive models within a decision tool to formulate and compare alternatives and visualize outcomes and trade-offs for policymakers and stakeholders.
Mar 18, 2014
News Release
Tools Can Help Policymakers Increase Coastal Resilience to Rising Seas and Storm Surge
Two key analytic tools can be used to evaluate how coastal protection and restoration decisions made now will play out over time, even given an uncertain future.
Feb 21, 2014
Report
Tools Can Help Policymakers Increase Coastal Resilience to Rising Seas and Storm Surge
Two key analytic tools can be used to evaluate how coastal protection and restoration decisions made now will play out over time, even given an uncertain future. For example, a community weighing whether to implement a marsh-building project can see how the project fares against different rates of rising sea levels over time.
Feb 19, 2014
Commentary
A Year After Sandy, a New Threat to New York City
As residents continue to recover from Superstorm Sandy, they are about to confront dramatic changes in the flood insurance landscape. Changes to federal floodplain maps will mean thousands of New Yorkers will suddenly be living in areas designated as high-risk flood, which will send their insurance rates soaring.
Nov 5, 2013
News Release
Rising Cost of Flood Insurance Will Create Serious Challenges for New York City
Some New York City residents may soon face sharp increases in their flood insurance premiums as a result of major changes occurring in the National Flood Insurance Program and the redrawing of flood maps that expand the areas at risk. Property owners in areas now deemed at highest risk may face increases of $5,000 to $10,000 annually.
Oct 25, 2013
Research Brief
The Rising Cost of Flood Insurance in New York City
Even as many in New York City struggle to rebuild after Hurricane Sandy, changes in the flood insurance market are increasing premiums for those living near the coast.
Oct 25, 2013
Report
Rising Cost of Flood Insurance Will Create Serious Challenges for New York City
Some New York City residents may soon face sharp increases in their flood insurance premiums as a result of major changes occurring in the National Flood Insurance Program and the redrawing of flood maps that expand the areas at risk. Property owners in areas now deemed at highest risk may face increases of $5,000 to $10,000 annually.
Oct 25, 2013
Dissertation
Improving Flood Risk Estimates and Mitigation Policies in Coastal Louisiana under Deep Uncertainty
This dissertation consists of three essays that summarize the author's contributions to the study of flood risk in coastal Louisiana during and following its 2012 Comprehensive Master Plan for a Sustainable Coast, an action-oriented plan consisting of over one hundred projects designed to minimize future land loss and flood risk while simultaneously considering negative impacts on fisheries and other ecosystem services.
Sep 9, 2013

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RAND Topic:
Flooding

Topic Synonyms:
Deluge;
Floods;
Overflow

Research conducted by

Researcher Spotlight

Benjamin M. Miller

Economist

Benjamin Miller is an economist at RAND, a professor of policy analysis at the Pardee RAND Graduate School, and a research quality assurance manager for RAND's Social and Economic Well-Being Division.
Jordan R. Fischbach

Adjunct Policy Researcher

Jordan R. Fischbach (he/him) is an adjunct policy researcher at the RAND Corporation and the director of Planning and Policy Research at The Water Institute of the Gulf. He codirected the RAND Climate Resilience Center from 2015 to 2020, and his research focuses on climate adaptation, urban…

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