The file consists of correspondence, sent (and received) by the Engineer to the Humber Conservancy Board (Arthur Ernest Butterfield), to/from various contractors and suppliers connected with maintenance and repair work required on Broomfleet Estate. This includes reports of various inspections of the embankments after heavy gales and high tides. Furthermore, lists detailing labour used at Broomfleet and their wages can be found, within the file.

A specific topic covered by the correspondence is repairs required at Island Farm, as a result of a fire on 11 July 1935. Lease documents connected with this farm can be found within the file.