The importance of this crossing ballooned on Apr 1, 2024, when it was announced that the LaSalle Causeway would not reopen after weekend rehabilitation work. In June, the government decided that the crossing would be closed for many moons while the bridge is replaced. With the downstream bridge closed, this 2-lane bridge is teaching the locals what big traffic jams look like during rush hour.
"Bridges" is plural in the title because they talk about the West Bridge, Main Bridge and East Bridge.
"When completed, this $180 million project was on time and on budget." [ThousandIslandsLife]
NU Girders:
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| queenssu The 1.2km (3/4 mile) crossing opened in Dec 2022. Waaban Crossing is "named after an Anishinaabemowin (Ojibwe) word relating to the east and sunrise." |
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| systra_awards, cropped The bridge has won some awards. |
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| systra_opened This article talks about "vehicles and soft modes." That is the first time I have seen the term "soft modes" for, I presume, pedestrian and bike traffic. Ojibwe is the "Algonquian language spoken in the Great Lakes region. It is one of the most widely spoken Amerindian languages." "One of the particularities of the project is its contractual form: SYSTRA IBT, the engineering firm Hatch and the construction company Kiewit formed an IPD (Integrated Project Delivery) contract with the City of Kingston, an integrated grouping that is a first in North America for linear infrastructure. One challenge is that it is the largest transportation project ever funded in Kingston’s history." |
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| Street View, Nov 2020 |
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| cpci This article uses the term "Multi-Use Path (MUP)." It is on the south side and is 4m (13') wide. |
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| cpci The precast concrete NU girders are over 2m deep. The West Bridge is 900m long and has 17 spans. So, the girders must be about 53m (174') long. "To support the bridge, caissons were cored into bedrock to depths of over 40 metres (131 feet)." |
NU Girders:
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| cpci "Developed at the University of Nebraska in the 1990s, NU Girders are prestressed concrete I-girders optimized for performance in two-span bridges and with full-length post-tensioning. They can be pretensioned girders, post-tensioned girders or a combination of both techniques. In a pretensioned girder, the top flange is reinforced with standard reinforcing steel comprising a basic grid of transverse and longitudinal bars, and four straight prestressing strands. A maximum of 72 strands can be accommodated, of which up to 26 are located within the web. These 26 strands can be deviated as necessary for the design. The bottom flange is highly reinforced with straight prestressing strands. NU Girders can be fabricated in depths ranging from 1,200 mm to 2,800 mm, in increments of 400 mm. A 2,000 mm deep NU Girder is referred to as an NU 2000. (Courtesy NU Girder Bridge Design and Detailing Manual, 2018 by Alberta Transportation.)" (systra adds: they "offer greater resistance to flexion-torsion.") |
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| beam-architects The arch span is 95m (312'). The Rideau Canal uses this river to complete its connection to Lake Ontario. That canal is "North America’s oldest operational canal and a significant engineering heritage asset." A competition rowing course also shares the navigation span. |
The vertical clearance is 27' (8.2m). [WaterwayGuide]
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| 11:03 video @ 1:22 |
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| 1 of many annotated photos by aerosnapper Liebherr LR-1300 cranes deliver a girder Two cranes lower an 85t concrete girder onto piers in weak winter light |
Kingston has a playlist of construction updates.
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