Indigenous cables, the Peace Bridge is supported by

Indigenous Peoples, including the Piikani,Kainai and Siksika of the Blackfoot Confederacy as well as the Tsuut’ina and Nakoda, have inhabited the Bow River Basin for more than 10,000 years.Fluctuations in river flow often dictated where and how Indigenous Peopleswould travel in the plains. Permanent occupation of the floodplain began withthe establishment of Fort Calgary and a Hudson’s Company trading post in 1875.Several years later in 1883, the arrival of the Canadian Pacific Railway markedthe beginning of The City of Calgary. Connecting communities across the Bow and ElbowRivers has always been a priority for the City.

The first bridges wereconstructed in the late 1800’1 s and there are currently over 50vehicle and pedestrian bridges spanning the rivers. In 2008, c2 ouncil approved the construction ofa new pedestrian and cyclist bridge over the Bow River to better connectnorthern communities to downtown. The location for what would become the PeaceBridge presented some very site-specific challenges for the designers, SantiagoCalatrava Architects and Engineers.

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To avoid impacting fish habitat, permanentfoundations were not permitted in the river; the proximity of the adjacenthelipad necessitated a six-metre height restriction, and3 ;and4  the bridge needed to be above the 1:100 flood event.5 Calatrava called the bridge “the mostaccessible, functional and technically challenging” bridge he’s ever designed. The steel structureis a sculptural, mathematically-derived form that presents a striking contrastwith the surrounding landscape. With no beams, arches or cables, the PeaceBridge is supported by foundations on either side of the river. The shape isdefined by a helix over an oval cross section with two clearly definedtangential radii creating the space within.

The upper openings are closed withglass ‘leaves’ to offer protection from the elements. It is 126 metres long and 8 metres wide withan interior width of 6.2 metres and height of 5.

85 metres. 6 Construction took over 27  years to complete. The steel wasshipped from Spain in 15-metre sections and welded on the banks of the Bow.

Once complete,hydraulic rams nudged the truss across the river on a temporary bridge and wasthen lifted into place on the concrete abutments. 8 The Peace Bridge represents Calgary’s commitmentto accessible, active-transportation infrastructure. With a designated cyclingcentre lane flanked by pedestrian paths on either side, the Peace Bridge istraversed over 6000 9 times daily, exceeding originalprojections. It10  has become a landmark for the Cityand a destination for both locals and visitors.  delete apostrophe capitalized? Check this with yourcommunications people delete insert ‘and’ awkward. ‘needed to be above the  1-in-100 flood event high water line’ (?)  I would check with City comms peopleon this – i just don’t know that a visitor or any person would know what 1:100flood event refers to? maybe I’m wrong.

But i would try to be as clear aspossible. I would delete this – as it’s repeatedin the quick facts should be written out: two This sentence is grammatically incorrect: What does the verb “was then liftedinto place” refer to? The truss? Right now the rams are the subject of thesentence… Once complete, hydraulic rams nudgedthe truss across the river on a temporary bridge. Cranes? then lifted thebridge into place on the concrete abutments.

 check the City’s style guide – wealways used a comma (6,000)  replace “it” with The bridge