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Where Some See Challenges

We See a Symbol of Renewal

a truly international effort, the george c. king bridge serves as a symbol of transformation and revitalization for one of Calgary's once-forgotten neighbourhoods.

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PROJECT SNAPSHOT

George C. King Bridge

25 Construction budget
440 tonnes of steel used
18 Height of tallest Arch
3 Arches
182 Bridge span
2.5 Years to complete
630 of concrete used
4 Awards and distinctions of excellence
1 Natural Disaster

As a project engineer during the construction phase, Calgarian Navid Sasanian was proud to have a role in the creation of this important landmark.

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project slideshow

See how this iconic bridge came together

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A conceptual rendering of the George C. King Bridge (previously known as St. Patrick's Bridge), depicting the initial vision of the site. St. Patrick's Island, seen in the far background, was included in CMLC's East Village revitalization plans. Photo credit: RFR

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The old bridge, which only spanned the river from the south shore to the island. Construction of the new bridge would require temporary foundations in the river, just upstream from the old bridge

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Construction of concrete abutment; the steel arches bear on concrete abutments at the north and south banks of the river, as well as two intermediate pier bearings located on St. Patrick's Island.

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Conventional and post-tension reinforcement of the deck and at end abutments.

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Placement and finishing of the concrete deck.

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Steel fabrication was completed by ADF in Quebec.

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Installation of the steel arches required stringent geometry control and extensive temporary support.

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Erection of the steel arches.

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Erection of the steel arches.

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Erection of the steel arches.

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Resident Engineer Brent Whitcomb at the apex of the arch. Brent relocated to Calgary from Denver for 2 years to serve as the on-site engineer.

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On June 19, 2013, rapidly melting snow combined with heavy rainfall caused the Bow River to flood the city and the surrounding region. When the waters rose, the bridge deck had only recently been completed and was not yet suspended from the arches. The floodwater overcame the berms and knocked out significant portions of the falsework. As a result of the damage, the new deck had to be demolished and reconstructed, setting the project completion date back by a year. More detailed information about the flood and our resiliency can be found here.

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With a commitment to limiting the delay in schedule as a result of the flood, the team had to rethink how the bridge would be constructed. Working through the winter, the crew overcame this unforeseen obstacle and met the new delivery target.

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Installation of the suspension cables.

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Painting the steel arches.

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From left to right: Former Calgary Municipal Land Corporation representative Dan Prentice (client), Christian Rieser of RFR-SAS (Architect and Design Lead), Brent Whitcomb of WSP | Parsons Brinckerhoff, and Ian Norris of Stantec (Project Manager).

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Tension adjustment of the suspension cables.

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Concrete cast of the ramp to St. Patrick's Island.

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Deconstruction of the temporary foundations.

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The south steel arches peak at a height of 18m above the deck level and span 99m from the south bank to the island.

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The new bridge connects Calgary's East Village neighbourhood with St. Patrick's Island and the Bridgeland / Memorial CTrain Station.

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Project engineer Navid Sasanian enjoys the view of the bridge and Calgary's skyline from St. Patrick's Island.

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The new bridge offers pedestrians and cyclists plenty of opportunities to relax and enjoy the views.

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The bridge's unique design is meant to mimic a stone skipping across the water.

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The George C. King bridge is equally impressive at night. Photo credit: RFR

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The George C. King bridge was recognized with 4 awards and distinctions of excellence, including one from the Canadian Consulting Engineers. From left to right: Project Manager Tom Cooper from Denver, CO, Engineer of Record, Michael McDonagh from Lawrenceville, NJ, and Project Engineer Navid Sasanian from Calgary, AB.

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