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Design and Construction of the Fort Edmonton Footbridge Over the North Saskatchewan River Brendan Gill, PE, P Eng - CH2M HILL Alex Harrison, PE - CH2M HILL Western Bridge Conference September 22, 2009 Introduction • The City of Edmonton’s Fort Edmonton Footbridge completes a link within the City’s extensive riverfront park system. • The bridge site is located upstream of one of Canada’s largest living history museums • Aesthetics and environmental considerations were paramount, an extensive public communication program was utilized • The North Saskatchewan River is a major river in the Province of Alberta, construction within the river banks must address seasonal flow variations, large temperature swings, and the dynamic of river ice effects. WESTERN BRIDGE 2009 Design and Construction Team • Owner: City of Edmonton • Prime Consultant and Designer : CH2M HILL – Dynamic Analysis: Boundary Layer Wind Tunnel Laboratory – Geotechnical: Thurber Engineering – Trails: EDA Collaborative – Hydrotechnical: NHC – Environmental: AMEC CH2M HILL – Specialist Consultant: Jiri Strasky • Construction: Alberco Construction Ltd. – Precast: Lafarge – Cable: Bridon – Post-Tensioning: DSI WESTERN BRIDGE 2009 Project Site WESTERN BRIDGE 2009 Contextual Design Issues • Minimize impact on View – views of Edmonton from top of bluffs – views along river corridor • Appropriately scaled icon structure – unique architectural identity • Sustainable facility – Life Cycle Costs – compatibility with special natural environment (Greenfield site) • Encourage interaction with river environment – park setting – gathering place WESTERN BRIDGE 2009 Site Context – North Saskatchewan