Provide engineering services to prepare bid-ready construction plans at both DEM project locations: Ft. Wetherill and Pier 9. The summary of the design scope of work includes: Review existing condition and recommendation reports for each project site (see Appendix) Design a repair solution for the failed bulkhead wall at each site. It is assumed that the repair solution would include a new steel sheet pile bulkhead retaining wall, concrete cap, and timber fendering system, but firms are encouraged to propose their best repair solutions with consideration given to time, cost, service life, and each site’s needs. Design each repair solution to achieve a 50-year service life. Verify appropriate transition locations to join the proposed wall and the adjacent walls cleanly to ensure the integrity of the retaining wall system. Detail transition locations clearly on the plans. The proposed wall shall be installed within 18 inches seaward of the existing wall. Over sheeting shall be installed as close as possible to the existing wall. The proposed steel sheet piles shall be protected from corrosion through application of epoxy coating, coal tar, or an equivalent product. Protective coating shall extend from the concrete cap to 5ft below the mudline and aid the wall in achieving a 50-year service life. The retaining wall shall be designed and constructed to withstand earth pressures, surface loads, prop wash from vessels, berthing loads, and sufficiently accommodate commercial port operations. Include any demolition plans necessary prepare the site for the new retaining wall, including removal of all existing timber fender pilings in the project area, removal of the existing cap, and disconnection of existing utilities. DEM may opt to retain possession of removed timber piles if they are in a satisfactory condition...
