Collection search - Quebec Hydro - Electric Commission. Combined Power and Navigation Project. Lachine Narrows Profile and Key Map Map for Sections. ... Cross-sections Nos. 1 to 4 ... Nos. 9 to 14 ... Nos. 5 to 8 ... Nos. 15 to 21 ... Nos. 22 to 28 ... Nos. 29 to 32 ... Nos. 33 to 36