The project includes reconstruction and rebuilding of a decades old wooden bulkhead to support transportation operations at the port of ilwaco

Work includes acquisition and installation of sheet piling. Activities to be performed the port of ilwaco the port is located on the southwest coast of washington state located just inside the columbia river bar at the pacific ocean. The project includes reconstruction and rebuilding of a decades old wooden bulkhead to support transportation operations at the wharf. The project includes two components with the following elements component 1 final design and permitting the recipient will complete engineering and design through 100 percent for the bulkhead replacement and shoreline protection including all geotechnical biological cultural historic assessments and surveys along with nepa and permitting. Component 2 bulkhead construction element 1 bulkhead replacement bulkhead wall replacement will include installing a new, approximately 225 linear feet LF. Steel sheet pile wall waterward of the existing creosote treated timber wall. The top of the bulkhead pile cap will be set at an elevation of approximately 14.0 feet mean lower low water mllw. Element 2 regrade truck lane behind bulkhead wall upland paving and grading will be completed behind the new bulkhead wall to mitigate sea level rise approximately 8000 square feet SF of asphalt repaving. Repaving will maintain positive drainage away from the safe coast seafoods buildings. The bulkhead will be outfitted with scuppers to allow rainwater to flow into the marina rather than pooling on the driveway or raining toward safe coast. Element 3 slope protection transition from bulkhead approximately 350 SF of concrete debris shore protection from the shoreline to the south of the bulkhead wall will be removed to accommodate the new bulkhead wall replacement with approximately 35 cubic yards CY of riprap placed in the same area to maintain slope stability. Approximately 2200 SF of riprap will be placed on the embankment to the north of the new bulkhead to replace the existing creosote treated timber retaining wall and provide shore protection. The RIP RAP slope protection will serve as grade transitions from the vertical bulkhead structure to the adjacent sloped shorelines to the north and south. The embankment height will be increased to an elevation of approximately 14.0 feet mllw between the bulkhead and the marina access pier to the east to mitigate the effects of sea level rise. Deliverables expected outcomes performance measure table from schedule C page 8 of the grant agreement average daily truck traffic adtt - economic competitiveness adtt measures the total volume of truck traffic per day as defined by the project study area. Vessel calls - economic competitiveness vessel type and or freight capacity of the vessels calling to the area defined in the project study area. Intended beneficiary port of ilwaco. Subrecipient activities none.