Section 8-611 Application Submission Requirements
Application for a development permit shall be made on forms furnished by the Permit Authority and may include, but shall not be limited to: plans drawn to scale showing the nature, location, dimensions, and elevations of the area in question; existing or proposed structures, fill, storage of materials, drainage facilities; and the location of the foregoing.
Specifically, the following information is required:
8-611.A. Minimum Contents. The minimum application contents as specified in Section 5-202.C of this Title;
8-611.B. Certified Plan. One hard copy and one electronic copy of a plan certified by a registered professional engineer, registered in the state, locating the proposed development with respect to the following:
8-611.B.1. The boundaries of the designated or regulated flood hazard area(s) as well as the boundaries of the floodplain within the flood hazard area and the boundaries of the floodway zone and low hazard zone;
8-611.B.2. The existing zoning of the property;
8-611.B.3. The nature of the proposed activity or development;
8-611.B.4. Building floor elevations;
8-611.B.5. Proposed floodproofing measures;
8-611.B.6. Specifications for building construction and materials, filling, dredging, grading, channel changes, storage of materials, water supply systems and sanitary facilities;
8-611.B.7. Descriptions of any construction activity which would affect the hydraulic capacity of the floodway;
8-611.B.8. Elevation in relation to mean sea level of the lowest floor (including basement) of all structures;
8-611.B.9. Elevation in relation to mean sea level to which any structure has been floodproofed;
8-611.B.10. Certification by a registered professional engineer or an architect licensed in Colorado, that the floodproofing methods for any non-residential structure meet the floodproofing criteria in Section 8-627; and
8-611.B.11. Description of the extent to which any watercourse will be altered or relocated as a result of proposed development.
8-611.C. Maps. One hard copy and one electronic copy of the following maps or drawings:
8-611.C.1. A map showing the stream and channel, the designated flood hazard area, the floodplain, the floodway and other hazard zones, as appropriate, surrounding the channel, the area to be occupied by the proposed development, and all available flood elevation studies, water surface elevations and base flood elevations; and
8-611.C.2. A map with surface view showing elevations or contours of the ground, pertinent structures, fill or storage elevations, size, location and spatial arrangement of all proposed and existing structures on the site, location and elevation of streets, water supply systems, sanitary facilities and soil types; and
8-611.C.3. Drawings showing the profile of the bottom of the channel at the thalweg and the water surface profiles described in subdivision 1 of this subsection. The elevations of fill and structures must be shown.
8-611.D. Elevation. The applicant shall submit the elevation (in relation to mean sea level) of the lowest floor (including basement) of the structure and where the lowest floor is below grade on one or more sides, the elevation of the floor immediately above.
8-611.E. Coordination. The applicant shall submit evidence satisfactory to the Permit Authority that the applicant has coordinated adequately with the upstream, downstream or adjacent communities adversely affected by any development, fill encroachment or alteration or relocation of a watercourse;
8-611.F. Floodproofing. Where floodproofing is utilized for a particular structure in accordance with this Division, a registered professional engineer or architect shall certify that the floodproofing methods are adequate to withstand the flood depths, pressures, velocities, impact and uplift forces and other factors associated with the one hundred year flood. The applicant shall also provide the elevation in relation to mean sea level to which any structure has been floodproofed.
8-611.G. Watercourse Alteration. No person shall engage in any development that would cause alteration or relocation of an established watercourse as a result of proposed development.
8-611.H. Properties Removed from the Floodplain by Fill. A Floodplain Development Permit shall not be issued for the construction of a new structure or addition to an existing structure on a property removed from the floodplain by the issuance of a FEMA Letter of Map Revision on Fill (LOMR-F), unless such new structure or addition complies with the following:
8-611.H.1. Residential Construction. The lowest floor (including basement), electrical, heating, ventilation, plumbing, and air conditioning equipment and other attendant service facilities (including ductwork), must be elevated to one foot above the Base Flood Elevation that existed prior to the placement of fill.
8-611.H.2. Nonresidential Construction. The lowest floor (including basement), electrical, heating, ventilation, plumbing, and air conditioning equipment and other service facilities (including ductwork), must be elevated one foot above the Base Flood Elevation that existed prior to the placement of fill, or together with attendant utility and sanitary facilities be designed so that the structure or addition is watertight to at least one foot above the base flood level that existed prior to the placement of fill with walls substantially impermeable to the passage of water and with structural components having the capability of resisting hydrostatic and hydrodynamic loads of effects of buoyancy.
8-611.I. Additional Material. The applicant shall submit such other material as may be required by the Permit Authority in order to determine if appropriate design and performance standards have been met.