CUFP26-021 Staff Decision - Laserfiche WebLink

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5) The use will not have a significant adverse impact on potential water impoundments identified in the Comprehensive Plan and not create significant conflicts with operations included in the Comprehensive Plan inventory of significant mineral and aggregate sites. There are no nearby water impoundments identified in the Marion County Comprehensive Plan that would be impacted by this proposal, as Mill Creek is not an artificial body of water. Also, there are no nearby aggregate sites for the proposal to impact. The criterion is met. 11. The purpose of the Floodplain Overlay Zone is to promote public health, safety and general welfare to minimize public and private losses due to flood conditions. The criteria and standards which must be satisfied are listed in Section 17.178.050 and 17.178.060 of the Marion County Code (MCC). 12. Flood Insurance Rate Map # 41047C0703G indicates that the proposed placement site is in the Zone AE. Based on land use case CU/FP20-033 and the FIRM panel map, the BFE in the proposed location is 376.6 feet. 13. MCC chapter 17.178.050 (Conditional Use procedures and requirements) B-E pertain to this permit: B. When base flood elevation data and floodway data have not been provided in accordance with MCC 17.178.030, the applicant, with the assistance of the floodplain administrator, shall obtain and reasonably utilize any base flood elevation data or evidence available from a federal, state or other source in order to determine compliance with the flood protection standards. If data are insufficient, the floodplain administrator may require that the applicant provide data derived by standard engineering methods. A BFE was established for the non-farm dwelling on the property through land use case CU/FP20-033. The BFE established was 376.6’ (NGVD); this was confirmed using the cross section provided for the AE zone in FEMA FIRM map number 411047C0703G. The proposed manufactured home is located on this cross section, and therefore this BFE is sufficient for this case. The criterion is met. C. Prior to obtaining a building permit the owner shall be required to sign and record in the deed records for the county a declaratory statement binding the landowner, and the landowner’s successors in interest, acknowledging that the property and the approved development are located in a floodplain. The signing of a declaratory statement will still be made a condition of approval. D. Prior to obtaining a building permit, commencing development or placing fill in the floodplain the applicant shall submit a certification from a registered civil engineer demonstrating that a development or fill will not result in an increase in floodplain area on other properties and will not result in an increase in erosive velocity of the stream that may cause channel scouring or reduce slope stability downstream of the development or fill. The applicant shall provide evidence in the form of engineer certification that the proposed manufactured home placement complies with this criterion as a condition of approval. E. The applicant shall provide an elevation certificate signed by a licensed surveyor or civil engineer certifying that the actual elevations (in relation to mean sea level) of the lowest floor (including basement) and all attendant utilities of all new or substantially improved residential structures including manufactured dwellings meet the requirements of MCC 17.178.060(A), (B) and (C), where applicable, as follows: 1. Prior to construction (based on construction drawings); and 2. Once the floor elevation can be determined (based on the building under construction); and 3. Prior to occupancy (based on finished construction). This proposal is for a residential structure, the applicant shall submit an elevation certificate at the times listed above. The first elevation certification, based on construction drawings, was submitted with this application. Submission of the subsequent elevation certificates shall be a condition of approval. 14. MCC chapter 17.178.060 A, & D-H pertain to this project.