The project provides an additional 130m of berthing space along with 5,000 m2 of much needed hardstanding working space at the Middle Pier in the Howth Fishery Harbour Centre. The construction of the extended pier required the dredging of 6,000 m3 of soft silt. The recovered soft material was treated/ strengthened on site using a combination of cement and ground granulated blast furnace slag (GGBS) to provide the support base for 2,000m2 of the new hardstanding area. This reduced the overall carbon footprint of the project by avoiding offsite material disposal and the importation of new, processed granular fill.