Federal Register


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Environment Reporter


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HEC-2 Water Surface Profiles


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This manual documents Version 4.6 of HEC-2, released February 1991. Appendices provide sample applications, floodway options, bridge and culvert analysis. Input, output, and special notes are also presented in the Appendices.







Too Big to Fall


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A comprehensive overview of the shocking state of our nation's infrastructure and what must be done to fix it







Flood Insurance Study


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