Photographs depict different construction projects at separate locations in Cassiar. Photographs were originally housed in envelopes with the following annotations: "POLICE STATION. July 15, 1977."; "Aggregates and Concrete (PERMASTEEL)"; "Fibre Storage and Handling"; "Powerhouse Expansion"; "Sewage Collection Plant."; "Sewage Treatment Plant"; "Single Person Accommodations - Site Work."; "Outside Work - Camp Nos. 1,2,3." Photos generally feature the work sites, supplies, vehicles, machinery, and work in progress at each location.
Additional photographs integrated into file include maintenance project on lining of tubes, lining of aspiration hood, and lining of willow fiberizer. Also five photographs of maintenance in the townsite to fix in ground piping.