I have attached a pdf of an old 1921 map.It is a detailed map showing part of a wooden flume which was used by the Courtenay Lumber Company to transport logs roughly 2 km to a mill pond near the present site of Courtenay City Hall. The flume consisted of heavy planks forming a long trough, or chute supported in places by a log structure much like an old railway trestle. A dam diverted much of the flow of Morrison Creek (then called Millard Creek) into the flume. Logs were rolled into the flume at this point and floated 2 km down to the mill. The start of the flume was near the present day foot bridge in Morrison Park, near Embleton Crescent & Arden Road (Morrison Park). The flume carried logs through the present day Lake Trail School grounds, across what is now Willemar Ave at Lake Trail Road, and on down to what is now the parking Shoppers Drug Mart parking lot.
While this dam and diversion would have had a devastaing effect on fish in the creek, in the early 1980s a very well thought out salmon enhancement project diverted a fraction of Morrison Creek at the same point, through old wetlands and into Arden Creek, an effemeral stream. This added about 500 meters of new wetland rearing habitat for coho and provided reliable flow to another 1000 meters of stream. Lamprey have also been observed spawning in this diversion and it seems to provide favourable conditions for much of the lamprey life cycle.