In 1845 work commenced on the Ipswich to Bury St Edmunds railway line, and a temporary railway station was built at the Croft Street end of the site in 1846, which remained in use until 1860 and was demolished by 1884. A map of 1849 shows two additional depot buildings, with additional buildings and extensive railway sidings added by 1884. The railway depot was substantially expanded between 1884 and 1927, with further modifications between 1927 and 1968, although the two railway depots of 1849 still survived at this time. One of the 1849 depots was demolished in 2003 (S1).

1919: Excavation by Nina Layard, Faunal remains found, also a levallois core (Wymer suggests possibly neolithic) and scrapers, (S5-S7).

1975: Excavation by Wymer, animal remains and flint flakes found. Excavation by Wymer, more than one mammoth, mainly one animal with two feet stuck in silt. No signs of butchery, probably drowned. Other animals reported included red deer, horse, wolf, bird, fish and rodents. Sediments deposited by equivalent of Orwell during Ipswichian interglacial, circa 110,000 to 80,000 BP. Bone bed may be due to a meander banked against a cliff of Reading and London clay, which prevented animals escaping at times of flood, (S5).

1977: Excavation by Markham (IPSMG) on the same site as Wymer's 1975 Excavation, (S5, S8).

2004: A desk-based assessment was undertaken in advance of proposals to redevelop the former railway depot, (S1).

2005: Evaluation and Environmental Investigation, 19th century pit and animal bones, (S2, S3).

2005: Monitoring of groundworks, no finds or features, (S4).

2006: Monitoring of groundworks, no finds or features, (S4).