During the Second World War, two petroleum storage depots were constructed in Gloucester. A Government Civil Storage depot with six 4,000-ton semi-buried tanks was constructed on the Berkeley Canal in 1941/42 by Shell-Mex and BP and connected to the pipeline that ran from the Mersey to the Avon. It was also connected to the Air Force Reserve Depot and a Shell Mex and BP facility for road and rail loading. Due to severe tank corrosion, it was demolished in 1971/2 and disposed of in 1976. The second depot was an Air Force Reserve Depot with four 4,000-ton semi-buried tanks constructed in 1941/42 by Shell, Shell-Mex and BP at the Monk Meadow Dock on the Canal. Originally, delivery was by road, rail and barge and pipeline. It was also connected to the docks and to the Shell Mex and BP installation for rail and road loading facilities and the civil storage site. It was transferred from the Air Ministry to the Ministry of Power in 1959, closed in the 1990s and disposed of in the later 2000s.