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| Boat View, Oct 2021 |
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| HistoricBridges, Source: William James Topley/Library and Archives Canada/PA-009430 "A bridge with more than just a truss as a cantilever, the deck of this bridge is extremely unusual because it includes a design where the floorbeams are cantilevered far out beyond the truss lines to provide lanes originally for both vehicular and electric rail, while the traditional roadway space between the trusses was reserved for steam rail. This feature is particularly unusual because it is an original design feature of the bridge. This sort of deck expansion is sometimes added to a bridge in later years, usually with deck trusses. With most original designs for through truss bridges, pedestrian sidewalks are usually the only things cantilevered out beyond the truss lines." |
Now, the northern lane is westbound, the middle lane is eastbound and the southern lane is a trail.
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| Street View, Jun 2023 |
Note the traveler used to build the bridge. The close span is done because its traveler has been removed. HistoricBridges has more information on the construction.
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| HistoricBridges, Source: Topley Studio / Library and Archives Canada / PA-013866 |
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| TripAdvisor, gitter49 Oct 2018 |
"A 123-year-old interprovincial bridge connecting downtown Ottawa with Gatineau, Que., is nearing its end thanks to the effects of six decades of road salt, federal officials said recently....The Alexandra Bridge typically carries around 18,000 vehicles a day — about 10 per cent of daily crossings on the Ottawa River — and another 4,000 pedestrians and cyclists." [ConstructConnect]
In addition to a myriad of rust issues, some of the truss members have local buckling.
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| canada, 1 of 7 photos showing problems with the bridge "A truss member that should be straight and follow the yellow line, but is deformed (local buckling)." |
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| Scott Radath posted Here are the three preliminary design concepts introduced this week by Canada’s National Capital Commission (NCC) to replace the historic 1898-1901 Alexandra Bridge (shown in red) between Ottawa, Ontario and Gatineau, Quebec. The three concepts, which all came from the same team of engineers, feature two car lanes (which someday might share the road with a tramline or be replaced with light rail tracks) on the east side, bi-directional bike lanes in the middle, and a combination pedestrian path and lookout on the west side. They also allow for a gathering space for public events. According to the colourful Post-It Notes participants at a public consultation open house last night were encouraged to stick on the displays, there was no run-away winner. I didn’t fall in love with any of the concepts, but I liked Echo the most because it was an homage to the old bridge, blocked sightlines the least, had the widest pedestrian area, and looked nicest when lit up at night. I was assured by a NCC employee that based on public feedback, some aspects that people like in one concept might be incorporated into another. For example, I’d like it if Echo included the elevated seating featured in Motion. Here is the Public Services and Procurement Canada page that argues why it’s not feasible to renovate the current bridge as many of us would like to do: Here are the NCC links to the project overview and history of the Alexandra, the details on the three designs with videos, and a public feedback survey due by October 24: |
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| ncc-ccn_replacement |
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