Risk Analysis and Uncertainty in Flood Damage Reduction Studies (2000) / Chapter Skim
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The Corps and U.S. Flood Damage Reduction Planning, Policies, and Programs
The Corps and U.S. Flood Damage Reduction Planning, Policies, and Programs
Pages 12-28
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From page 12... ...
This act established flood control (generally referred to today as "flood damage reduction" by the Corps) as a nationwide policy on navigable waters and their tributaries, and it deemed flood control as an appropriate activity for the federal government.
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From page 13... ...
For decades, the Corps added 3 feet of freeboard to the design height of its levees, a principle that became a staple of Corps flood damage reduction studies and projects. The practice was also used by the Federal Emergency Management Agency (FEMA)
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From page 14... ...
, the National Academy of Sciences (now part of the National Academies) was requested to conduct a study of the Corps's risk analysis methodology in its flood damage reduction studies.
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From page 15... ...
THE CORPS'S WATER RESOURCES PROJECT PLANNING PROCEDURES The Corps's use of risk analysis techniques is applied to certain hydrologic, hydraulic, geotechnical, and economic aspects of Corps planning decisions for flood damage reduction studies. Development, refinement, and application of these risk analysis techniques occur within a larger context of Corps planning procedures, federal planning guidelines, and other considerations.
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From page 16... ...
The National Economic Development alternative was the water development plan that maximized economic development benefits for the nation, while the Environmental Quality alternative was the plan designed to minimize negative environmental impacts. The two secondary objectives, regional economic development and other social effects, could be assessed but were not required for all projects.
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From page 17... ...
Formulation of plan alternatives, for example, may occur at various stages throughout a planning study. The Corps conducts its water resources project planning studies in two separate phases: a reconnaissance phase and a feasibility phase.
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From page 18... ...
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From page 19... ...
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From page 20... ...
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From page 21... ...
Risk analyses are conducted in the feasibility phase of a Corps flood damage reduction study. Alternative plans are identified at the beginning of the planning process and these
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From page 22... ...
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From page 23... ...
In a Corps flood damage reduction study, levee height is determined according to the National Economic Development criterion (i.e., based on prescribed benefit calculation procedures) , rather than according to a levee's ability to withstand a flood of a given magnitude.
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From page 24... ...
Although it is a key federal agency involved in flood hazard management, the Corps's flood damage reduction activities are but a part of a larger effort which includes other federal, state, tribal, and local governments toward managing flood risks. Box 1.2 summarizes flood-related activities conducted by other federal agencies.
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From page 25... ...
To help promote better coordination, the report recommended the following actions: · The president should enact a Floodplain Management Act which establishes a national model for floodplain management, clearly delineates federal, state, tribal, and local responsibilities, provides fiscal support for state and local floodplain management activities, and recognizes states as the nation's principal floodplain managers; · Issue an Executive Order clearly defining the responsibility of federal agencies to exercise sound judgement in floodplain activities; and · Activate the Water Resources Council to coordinate federal and federal-state-tribal activities in water resources; as appropriate, reestablish basin commissions to provide a forum for federal-state-tribal coordi
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From page 26... ...
26 Risk Analysis and Uncertainty in Flood Damage Reduction Studies : :by -floods an ~ th ~~ ~ tow ~~-~ t~-~I~i~ ~ ~ A ~ ~ ~-~-1 ~;~= j~`Q~::~.~-~.~:~ : .
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From page 27... ...
Flood Damage Reduction Planning, Policies, and Programs 27 ~ I: ~ ~ I: ~~ ~ ~~ i: ~~ ~~ NASA: also co-nducts~ research: on ~:the~consequences~of~ :inter-annual~: ~~ :~ ~ ~~ ~ ~~:~ ~~.~:~.~:~ ~:~rm.~a~l~o~n~ ~.~-ue~nm~r~.~l~ ~ when -ureas: n~all-o~na~;~u~m~m~a~rl~es~-~-~:~n.~ro ~~ ~~ :: A: ~ ~~:~ ~~-~ ~~-~ :~ :::: ~~ ~~ it: ant ~l~r~ ~ :~w~ l~l~ol~ =~ `~ul~l~l~:~ ~ Mu ~ ~l~lol~l~l ~=l: ':~=l~ ~~.~:~ .: Ail: ~~ ~~ ~~ ~:~:~:~:~:~ ~~ ~~:~:~ ~ ~~ ~~ ~~-~ :::: ~~.~ .:.
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From page 28... ...
. This chapter has described the planning, policy, and inter-agency context in which the Corps executes its flood damage reduction studies and plans.
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Key Terms
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