A diamond crossing is a very complex assembly of steel. This is the now unused VIA Ellwood Junction Diamond to be soon removed. Flyover piers beside it. 20 years ago the found it is less bumpy the faster they go.
From the Brookfield East crossing you can see the line of piers for the Ellwood Junction VIA / creek/ Transitway flyover and the old Trillium Line alignment / bridges.
In preparation for re-laying rails from Brookfield East towards South Keys, Lester and Leitrim, ties and hardware have been delivered.
Mystery solved! The White Bridge of the Trillium Line has been covered in a white tent for environmental safe removal of decades of lead paints, at the Rideau River.