I've driven past this particular bridge more times than I can remember. It's much easier to see from the road during winter when the trees don't obscure the view. It's not too far from the road - only about 150 metres/yards, but it took me about 20 minutes to reach a spot from which I could make some photos at its base where it crosses the Rideau River near Merrickville. I had to scramble through the brambles and walk gingerly over soft mud using old bulrushes for temporary underfoot support.
After I made my photos, packed my equipment, and was headed back through the dense brush, I heard a train approach - as luck would have it. I tried to get back to my previous vantage point, but the last cars of the freight train crossed the bridge as I reached it. From there it was impossible to scale the steep hill to the tracks above. However, just before I reached the road again, after another arduous trek, I managed to pull myself up the 12 metre/40 foot slope to the tracks. And 15 minutes later I was rewarded for my efforts.
(70-200mm f8 1/125 sec ISO200)
(18-55mm f8 1/400 sec ISO200)
(18-55mm f11 1/80 sec ISO200)
(18-55mm f6.3 1/200 sec ISO200)