The applicant shall provide at least the following information. In areas of historic problems or where atypical conditions exist, additional information may be required on the permit application form.
A. All floodplain development permit applications shall include, but not be limited to, plans in triplicate drawn to scale showing the nature, location, dimensions and elevations of the area in question; and the nature, location, dimensions and elevations of existing or proposed development, structures, fill, storage of materials, and drainage facilities. The city manager may require hydrologic and hydraulic studies as required, and if so required, shall be made under engineering seal. The applicant is responsible for any other permits required to fulfill local, state, and federal regulatory requirements.
B. Elevation in relation to mean sea level of the lowest point on the top of a pad, and the lowest point on the top of the floor surface of the lowest floor or basement, whichever is applicable, of all proposed structures. Upon completion of the structure, the permit holder shall submit to the city manager the as built elevation, certified by a licensed professional engineer or registered land surveyor.
C. Elevation in relation to mean sea level to which any nonresidential structure shall be floodproofed. Upon completion of the floodproofed portion of the structure, the permit holder shall submit to the city manager the as built floodproofed elevation certified by a licensed professional engineer or surveyor.
D. A certificate from a licensed professional engineer or architect that the nonresidential floodproofed structure will meet the floodproofing criteria.
E. A certificate from a licensed professional engineer or architect that any utility floodproofing to be constructed will be adequate to protect the functionality of the utility in the event of the regulatory flood event.
F. All requirements of city of Okmulgee earth change ordinances shall be met to obtain a floodplain development permit.
G. Description of the extent to which any watercourse or natural drainage will be altered or relocated as a result of the proposed development. Modification to the regulatory flood area cannot: 1) increase velocities or volumes of water to the extent that significant erosion of floodplain soils would occur either on the subject property, or on some other property upstream or downstream; or 2) fail to provide compensatory storage for any measurable loss of flood storage capacity within the applicable system as compared to natural conditions. Computations by a licensed professional engineer must be submitted that verify compliance with these requirements.
H. A description of the extent to which any watercourse will be altered or relocated as a result of proposed development. Computations by a licensed professional engineer must be submitted that demonstrate that the altered or relocated segment will provide equal or greater conveyance than the original channel segment, and address floodplain storage as required by the city manager. The applicant must submit any maps, computations, or any other materials required by the federal emergency management agency (FEMA) to revise the documents enumerated, when notified by the city manager, and must pay any fees or other costs assessed by FEMA for this purpose. The applicant must also provide assurances that the conveyance capacity of the altered or relocated channel segment will be maintained.
I. In FEMA zone A, when neither base flood elevation nor regulatory flood elevation data are available, the applicant shall provide regulatory flood elevation and floodplain delineation calculated by a registered professional engineer for the proposed development.
J. A technical analysis, by a licensed professional engineer, which shows whether proposed development to be located in the regulatory flood area may result in physical damage.
K. The city manager shall have the right to waive sections of the permit requirements, subject to the developer providing adequate proof to the city manager, that the development does not cause adverse impacts to the community.
L. All plans submitted by any person proposing development shall be signed and sealed by a registered professional engineer, registered in the state of Oklahoma. (Ord. 1969, 2011)