FP25-008 Staff Decision - Laserfiche WebLink

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1. All new construction and substantial improvements shall be constructed with materials and utility equipment resistant to flood damage, and the design and methods of construction are in accord with accepted standards of practice based on an engineer’s or architect’s review of the plans and specifications. 2. All new construction and substantial improvements shall be constructed using methods and practices that minimize flood damages. The applicant recognizes this standard and confirms the materials to be used are resistant to flood damage and utilize methods and practices that minimize damage that may occur during a flood. These standards shall be a condition of approval. (F) Utilities. 1. All new and replacement water supply systems shall be designed to minimize or eliminate infiltration of floodwaters into the system as approved by the State Health Division. The applicant acknowledges that all new improvements with the existing water supply systems will be designed to minimize or eliminate infiltration of flood waters. The standard shall be a condition of approval. (H) Storage of Materials and Equipment. Materials that are buoyant, flammable, obnoxious, toxic or otherwise injurious to persons or property, if transported by floodwaters, are prohibited. Storage of materials and equipment not having these characteristics is permissible only if the materials and equipment have low damage potential and are anchored or are readily removable from the area within the time available after forecasting and warning. This standard is already, and shall remain, a continuous condition of approval on the subject property. (J) Floodways. Located within areas of floodplain established in MCC 17.178.030 are areas designated as floodways. Since the floodway is an extremely hazardous area due to the velocity of floodwaters which carry debris, potential projectiles and erosion potential the following provisions shall apply in addition to the requirement in subsection (I) of this section: 1. Prohibit encroachments, including fill, new construction, substantial improvements and other development, within the adopted regulatory floodway unless certification by a registered professional civil engineer is provided demonstrating through hydrologic and hydraulic analyses performed in accordance with standard engineering practice that the proposed encroachment shall not result in any increase in flood levels within the community during the occurrence of the base flood discharge. 2. If subsection (J)(1) of this section is satisfied, all new construction, substantial improvements, and other development shall comply with all applicable flood hazard reduction provisions of this section. The entire project will be within the regulatory floodway of the North Santiam River. The provided no rise certificate shows that the proposed improvements associated with the new wells will not cause a rise in the flood levels for the mapped 100-year floodplain. The standards of this criterion are satisfied. 10. The following variance criteria within MCC 17.178.090(A) are required for any proposal within a regulatory Floodway. Variances shall only be issued upon a showing that: 1. There is a good and sufficient cause; The proposed new groundwater production wells and associated facilities are critical for the continued adequate supply of drinking water for the City of Salem during the drawdowns of Detroit Lake Reservoir proposed by the United States Army Corps of Engineers (USACE) that will begin during the fall of 2026. The cause for this proposal is therefore good and sufficient. The criterion is met. 2. Failure to grant the variance would result in exceptional hardship to the applicant; The applicant is the City of Salem and the project requiring a variance is one intended to avoid an imminent and exceptional hardship to the City and all of its inhabitants. Failure to grant this variance