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7550 MERIDIAN CIR N, SUITE 120 | MAPLE GROVE, MN 55369 PAGE 5 OF 8 structures, infrastructure, or property. Eroded materials from these bank failures travel downstream and settle into to the Oasis Pond, an RCWD constructed and maintained facility. This results in a shorter time period between maintenance projects, thereby increasing costs of maintenance. Because a pond upstream of County Road C captures large sediments in RCD 4 upstream of the project area, we understand that the most significant factor in reducing the need for maintenance of Oasis Pond is sediment delivered from the upstream open channel segment of RCD 4. Therefore, the proposed project to replace open channel with stormsewer will reduce the amount of sediment delivered to Oasis Pond, and reduce the frequency RCWD is required to dredge the pond. In 2010, 25 years after the previous pond dredging, the RCWD dredged Oasis Pond at a cost of $141,590. Adjusting for inflation and additional site constraints between 2010 and 2020, the current estimate to dredge Oasis Pond is $185,000. Based on previous dredging efforts, we estimate a 25-year life cycle between maintenance dredging of Oasis Pond, presuming no improvements are made to RCD 4 and the ditch remains an open channel. We estimate the proposed project will increase the lifespan of Oasis Pond to approximately 50 years. Therefore, converting the proposed project eliminates the need for an equivalent of two dredging projects on this facility over a 100-year period. Per RCWD policy, maintenance of District Facilities is funded via ad valorem. INCREASE IN PROPERTY VALUE Replacing the open channel with stormsewer will require less ROW area to inspect, access, and maintain. The current ROW corridor for RCD 4 within the project area is 110-120 feet wide. This ROW is an encumbrance on the property, which limits use within the ROW. The ROW required to access and maintain the proposed stormsewer at this location in RCD 4 is estimated to be 30 feet, based on the use of trench boxes during major maintenance operations. The reduced ROW will increase the useable area on each parcel within the ROW, and thus increase the property value. The increased value on encumbered properties by reducing the ROW was estimated by determining the per-acre land value of those properties (via Ramsey County parcel data) and multiplying by the decrease in ROW area.Table 3 details the calculation for reducing the ROW and change in Estimated Market Value (EMV). Total land value change resulting from the project is estimated at $2,319,214. The primary beneficiaries of this change in land value are the landowners along this portion of the system. Additionally, though still encumbered by the drainage system, the remaining ROW following the proposed project will provide additional value to the City in the form of a greenway (as proposed in City planning documents). Using the same per-acre land value of the surrounding land, the value to the City for the usability of this acreage is $830,034.