EVALUATION The evaluation was carried out alongside and immediately following the removal of the existing concrete slab in stages by the demolition principal contractor. A method for the removal of the slab in a manner to avoid impact upon potential buried archaeological remains had been previously been produced by OA and agreed with GLAAS. The evaluation itself comprised an approximate 4% sample of the area of greatest impact within the development boundary (building footprints), along with additional trenches to adequately cover the impact of subsurface drainage and other services within the parking areas. This translated to 19 trenches, each measuring 30m x 2m Trenches within the footprint of the new structures The trenches excavated within the footprint of the new structures were mechanically excavated to the first archaeological horizon or the surface of the underlying gravel depending upon which was encountered first. Some of these trenches were expected to reach depths of 2-2.5m or more due to the presence of alluvial sediments and thick deposits of made ground based upon the evidence of the deposit model and the existing ground levels. To safely excavate to this depth these trenches were stepped in 1m units (depth and step in) with spoil stored at a distance of no less than 1m from the edge of the upper step. It was recognised that archaeological deposits might be stratified within the alluvial sequence above the gravel and particular care was taken to ensure such deposits were identified during the machine excavation. Where archaeological horizons were identified above the level of the underlying gravel, machine excavation exposed this horizon along the length of the trench. Hand excavation continued at this stage to fulfil the aims outlined above. Once this archaeological horizon has been sufficiently evaluated the trench was machine excavated to the next horizon below this level or the surface of the gravel. Where machine excavation exposed the surface of the gravel, this horizon was sufficiently cleaned to establish the presence/absence of archaeological remains. Where these were absent and within a maximum of two of these trenches, machine-dug sondages were excavated to investigate the gravel sequence and evaluate for the potential presence of the Arctic Beds. These were entirely machine excavated and all recording of the exposed deposits was undertaken from the surface of the trench. Trenches beyond the footprints of the new structures Mac...