The collection consists of maps and diagrams published by the Geological Survey of Canada about the geomorphology and tidal action at the mouth of the Fraser River (reproduced "to accompany a report by W.A. Johnson"), a hand painted canvas map about "Proposed New Fraser River Tunnel and North Arm Crossing", and a publication "The Tides and Tidal Streams" by the Department of Naval Service, Ottawa.

The fonds consists of records created and received by the Engineering Department of the Corporation of Delta, and its predecessors. Fonds contains records arising from various functions of the Engineering Department, such as the construction and/or maintenance of roads, wharves, railways, water lines, sewers, and natural gas lines. Fonds also includes administrative records, records arising from garbage collection activities, and records arising from environmental awareness activities. Records include correspondence, memoranda, reports, bulletins, articles, notes, plans, field work records and other materials.