Showing 865 results

Archival description
Grand River Conservation Authority
Print preview View:
Ascending

Grand River Conservation Commission : Conestogo Dam : report on hydraulic model tests of sluiceway, 1953.

Consists of ts. report prepared by H.G. Acres & Company, Limited, Niagara Falls, Ont. for the Grand River Conservation Commission regarding design and testing of a model sluiceway for the Conestogo Dam, near Glen Allan, Ont. undertaken in 1953. Includes blueline drawings of the general arrangement of spillway, dam model, and stilling basin, prepared by H.G. Acres and Company in November, 1953, and photographs of the sluiceway model. Correspondence between the Grand River Conservation Commission and the Ontario Department of Planning and Development is inserted.

Grand River Conservation Authority

Conestogo Lake photos.

One b&w construction snapshot taken June 22, 1956 and 16 col. snapshots of Conestogo Lake in the 1960's. These latter have tape on the verso and have adhered to each other.

Grand River Conservation Authority

Grand Valley Conservation Authority : Speed River : tender submission on sluice gates on the Speed River in the City of Guelph.

Consists of a binder containing ts. tender documents relating to the construction of sluice gates on the Speed River in Guelph, Ont., prepared by Ardelt Industries of Canada Limited, Kitchener, for submission to the Grand Valley Conservation Authority. Includes completed form of tender, technical description, blueprints of sluice gates, blueline schematic wiring diagram and 5 photographs of samples of gates supplied by Fried, Krupp, Germany, the parent company of Ardelt Industries.

Inserted are the following : cover letter and additional correspondence from Ardelt Industries to the Grand Valley Conservation Authority and correspondence from R.K. Kilborn & Associates, Toronto, Ont. to the Grand River Conservation Authority.

Grand River Conservation Authority

Wildflower slides : no. 1.

Consists of slides of various wildflowers identified by species on an ms. list on the interior lid of the slide tray case. Includes large groupings of orchids and lilies.
According to the original GRCA listing, the slides were taken by Bill Miller.

Grand River Conservation Authority

Wildflower slides : no. 2

Consists of slides of various wildflowers identified by species on an ms. list on the interior lid of the slide tray case. Also includes slides of insects and amphibians.
According to the original GRCA listing, the slides were taken by Bill Miller.

Grand River Conservation Authority

Results 101 to 200 of 865