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Answers to Frequently Asked Questions about the Colorado 2013 Flood Event A15: Community officials are required to regulate based on their effective Flood Insurance Rate Map; however, they should give additional consideration in situations such as this to the dynamic nature of the stream channel. Those developing or redeveloping in the floodplain are required to obtain a floodplain development permit from their local floodplain manager in order to determine whether a building is substantially damaged. Substantially damaged flood -insured structures could be eligible for Increased Cost of Compliance coverage, which would help the owners rebuild in compliance with the current flood damage prevention standards. FEMA is coordinating with State and local governments to understand the extent of the stream migrations and to propose solutions, if required, for select areas. If the community would like to acquire or relocate such structures, the community and State can apply for funding from various Federal grant programs. For additional information on FEMA Mitigation Grant programs, contact the State of Colorado Hazard Mitigation Officer. In order to assist the CWCB in carrying out its mission to protect the health, safety, welfare and property of the public, through the prevention of floods in Colorado, the CWCB requires the following: A. Detention/flood control storage and LID should be considered, when practicable, as part of a basinwide program for the watershed. B. Flood control channels shall include a low -flow channel with a capacity to convey the average annual flow rate, or other appropriate flow rate as determined through a hydro - geomorphological analysis, without excessive erosion or channel migration, with an adjacent overbank floodplain to convey the remainder of the 100 -year flow. The channel improvement shall not cause increased velocities or erosive forces upstream or downstream of the improvement. C. Channelization and flow diversion projects shall appropriately consider issues of sediment transport, erosion, deposition, and channel migration and properly mitigate potential problems through the project as well as upstream and downstream of any improvement activity. A detailed geomorphological analysis should be considered, when appropriate, to assist in determining the most appropriate design. D. Project proponents for a mitigation activity must evaluate the residual 100 -year floodplain. Proponents are also encouraged to map the 500 -year residual floodplain. E. All public and private flood control structures shall be maintained to ensure that they retain their structural and hydraulic integrity. Annual inspections including, as appropriate, field surveys of stream cross-sections, shall demonstrate to the appropriate regulatory jurisdictions that the project features are in satisfactory structural condition, that adequate flow capacity remains available for conveying flood flows, and that no encroachment by vegetation, animals, geological processes such as erosion, deposition, or migration, or by human activity, endanger the proper function of the project. If any significant problems, as identified within annual inspection reports, the facility or project owner shall notify the CWCB within 60 days of the inspection. The inspections shall be conducted by the local