2.1 The Interprovincial Bridge
See the article by Colin J. Churcher on the Centenary of the Interprovincial Bridge, Branchline, February 2001.
Picture taken by Bill Linley when the bridge was still used for rail traffic. This was taken on August 15, 1965 and shows
the Dominion, Train #4 and it's available from the author in his Morning Sun book, "Canadian Pacific in Color: Eastern Lines."
Taken in 2002
The Prince of Wales Bridge
Drone video by Moe Cote. This shows the Quebec side
2.3 St. L&O Rideau River Bridge (the White Bridge).
2.4 St. L&O Rideau Canal Bridge at Dows Lake (also known as the Munsie Bridge).
These two pictures from the collection of William Felton McConnell
The following pictures were all taken by Bill Linley
CP's Smiths Falls - Ottawa Train 84 led by 8787 approaching the home signal on May 14, 1967. The train was stopped while the bridge was turned. I was standing on the edge of Colonel By Drive.
Here's S-2 7025 at twilight on July 31, 1967, returning to Ottawa West with the Sussex Switcher. The next day the new tunnel under the canal would open to traffic. Not the raised arm on the signal in the distance.
North Shore Train 131 with 9104 and 9021 showing the tender's hut on June 17, 1967.
The hut is quiet and the canal empty as Montreal-bound Train 76 crosses on March 2, 1967. Note the silver pole in the distance. Perhaps the pole is the home signal with the blades removed for the winter season?
Montreal-bound Train 134. Take note of the distant signal between the pedestrian and the hydro pole on Prince of Wales Drive. August 18, 1966.
Picture of rodding, now gone, provided by Bernie Geiger
See also https://churcher.crcml.org/Heritage/Heritage_Track.html Ottawa, Dows Lake
The caption reads "View of Bytown and the bridge to cross the Rideau - taken from a point on the east side of the river near New Edinburgh".
Of course the bridge wasn't built until some three years later and the final version exhibited some detailed differences from this drawing.
Photo taken from the south west corner by Bill Linley on Tuesday, March 16, 1965.
You can see the link and pin construction and how the lower chords and the diagonals are all tension members, while the upper chords and the verticals are all steel beams in compression.
This appears to be a Whipple Pratt Truss (with crossing diagonals), according to the following two descriptions:
The Pratt truss was originally patented by Thomas and Caleb Pratt in 1844. In its earliest form, the Pratt truss was a combination wood and iron truss. The top chord and verticals acted in compression and were made of wood, while the bottom chord and inclined members acted in tension and were made of iron. This combination Pratt truss was built through the 19th century and was cited as a continued form by bridge engineers as late as 1908. The Pratt truss survived the transition to metal construction and was widely built as an all-metal truss well into the 20th century. In 1916, bridge engineer and historian J.A.L. Waddell claimed that the Pratt truss was the most commonly used truss type for spans under 250 feet.
Whipple Pratt Truss
The Whipple Pratt truss, also termed Double Intersection Pratt truss, added additional diagonals to the basic Pratt truss, which extended across two panels, but kept the parallel top and bottom chords of the simple Pratt profile. Squire Whipple’s double intersection truss was patented in 1847. In 1863 John W. Murphy, chief engineer of the Lehigh Valley Railroad, slightly modified the Whipple Pratt truss by adding crossing diagonals. The Whipple Pratt truss was widely used for long span railroad bridges.
You can also see the stone arch over the pathway at the near end, which was wantonly demolished by the NCC a few years ago, and which I think dates from the 1855 bridge, so was the oldest railway artifact in the original City of Ottawa.
Showing after the bridge was removed but before the underpass was destroyed. Frayne collection F2-1623
Frayne collection F2-1624
2.8 CNOR Rideau River Bridge at Hurdman
2.9 CNOR Rideau River Bridge at Federal
QMO&O Bridges on the North Shore Line
The bridges saw
service on the QMO&O
later the CPR until they were rebuilt 1923-1925 in order to be able to
handle heavier loadings. This was recorded
Canadian Railway and Marine
June 1923, page 277:
Bridge 56.8, Kingly Branch. - Existing 37 ft. deck plate girder span to be replaced by a 30 ft. I beam span.
Bridge 60.1, Calumet River. - Existing 50 ft. deck truss span to be replaced by a 50 ft. deck plate girder span.
Bridge 62, La Rouge River. - Existing bridge, consisting of three 150 ft. deck truss spans, to be replaced by three spans of similar type and dimensions, but of heavier structure.
Bridge 64.3, Riviere au Chene. - Existing 50 ft. deck truss span to be replaced by a 50 ft. half deck plate girder span.
Bridge 67.2, Salmon Creek. - Existing 50 ft. deck truss span to be replaced by a 50 ft. half deck plate girder span.
Bridge 72.8, Salmon River. - Existing 100 ft. through truss span to be replaced by a 100 ft. deck plate girder span.
Bridge 79.17, Papineauville Creek. - Existing 18 ft. deck plate girder span to be replaced by an 18 ft. I beam span.
Bridge 97.6, Trepanier Creek. - Existing 29 ft. deck plate girder span to be replaced by a 25 ft. Bethlehem I beam span.
Bridge 80.1, Trepanier Creek. - Existing 30 ft. deck plate girder span to be replaced by a span of similar type and dimensions, but of heavier structure.
Bridge 84.6, North Nation River. - Existing bridge, consisting of one 150 ft., one 200 ft., and one 100 ft. through truss spans, to be replaced by two 78 ft. and two 53 ft. deck plate girder spans and one 200 ft. deck truss span.
Bridge 89.2, Blanche Creek. - Existing 50 ft. deck truss span to be replaced by a 50 ft. half deck plate girder span.
Bridge 92.7, Blanche River. - Existing 100 ft. through truss span to be replaced by a 100 ft. deck plate girder span.
Bridge 106.1, Blanche Creek. - Existing present 50 ft. deck truss span to be replaced by a 50 ft.-half deck plate girder span.
Bridge 109.4, Blanche River. - Existing 100 ft. through truss span to be replaced by a 100 ft. deck plate girder span.
We are also advised that contracts have been let as follows:
To McKinnon Steel Co., Sherbrooke, Que., for fabrication of steel for bridges 56.8, 80.1 and 97.6;
to Dominion Bridge Co., Montreal, fabrication and erection of bridges 62 and 84.6;
and to Canadian Bridge Co., Walkerville, Ont., for fabrication and erection of the other bridges named above, and for the erection of bridges 56.8, 80.1 and 97.6.
2.13 CPR Bridge over the Rideau River at Merrickville, Winchester subdivision
The CPR Holiday Train 2015 More Bob Heathorn photos of the bridge at bottom.
This plan is dated 9 July 1886 (NMC 146075)
On 15 August 1887 the Ontario and Quebec Railway (Canadian Pacific) opened the Smiths Falls section between Vaudreuil and Smiths Falls. The bridge over the Rideau River was in service from that date. Freight and passenger trains (possibly mixed trains) commenced operation between Perth and Merrickville on 25 October 1886. This bridge at mile 114.2 Winchester subdivision comprises two 33 foot girder spans, six 78'6" girder spans and one 150 foot through truss spans on masonry piers and abutments.
The proposed site of the bridge was approved on 20 July 1886 by Order in Council PC 1886-1500. Formal approval was granted so far as the Rideau Canal was concerned on 11 March 1907 by Order in Council PC 1907-474.
Approval to use and operate the bridge was granted on 26 March 1909 by Board of Railway Commissioners order 6691.
On 22 May 1969 the Canadian Transport Commission approved the reconstruction of the abutments through order R-5743
The following are taken from a facebook post of Canada Foundry/Hamilton Bridge photos of the original bridge and the 1907 rebuild.
The above drone video was taken by Moe Cote on October 2016. (to see on YouTube https://youtu.be/csYNC8jNMNU)
Photos below by Bob Heathorn 2012
2.14 OA&PSR bridge over the Mississippi River at Galetta, mile 20.9 Renfrew Spur
Drone video of the bridge in winter 2016-17
Click here to see the location on Google Maps
Updated 20 November 2020