On 30 January 168 Bde (with 501 Fd Co) was about to resume the offensive on the Garigliano when it was hurriedly withdrawn to reinforce the landing further up the coast at Anzio, which had run into trouble. On 6 February the rest of 56th Division (less 201 Gds Bde and 42 Fd Co, which now left the division) was also withdrawn from the Gariglianao and landed as reinforcements at Anzio. Much of the work for the sappers consisted of repairing roads in the bridgehead, including quarrying the necessary stone, all under heavy artillery and air bombardment. There was also a programme of laying defensive wire and minefields. The infantry were continually engaged, and by 25 February were down to less than half strength, so the engineers had to go into the fighting line while enemy counter-attacks were repulsed. On 9 March the exhausted division and 501 Fd Co were evacuated from Anzio, but 220 and 221 Fd Cos remained behind working on roads and quarrying until 18 March.