In this drawing the darker winding line is the natural flow of the Don River, and the the straight line with the angled hatching is the steel pile created path for the River.
“160,000 square feet of steel sheet piling was driven along the edge to contain the embankment at a height of eight feet above the normal river level. The portion of the embankment adjacent to the piling has been backfilled with slag, since its lighter weight will reduce the dead load on the piling.”
Excerpt From
BIENNIAL REPORT OF THE METROPOLITAN TORONTO DEPT. OF ROADS.
METROPOLITAN TORONTO, ONT. DEPT. OF ROADS
1962 to 1964
mmm