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Haisla Boulevard Pedestrian Walkway Bridge

https://collections.kitimatmuseum.ca/en/permalink/description34894
Part Of
Ware Collection
Description Level
Series
GMD
graphic material
Date Range
1958
Accession Number
2011.4.6
Scope and Content
Photographs of the Haisla Boulevard pedestrian walkway bridge. Photos include bridge before centre support was installed, and after.
Part Of
Ware Collection
Description Level
Series
Accession Number
2011.4.6
GMD
graphic material
Date Range
1958
Physical Description
16 Photographs : b&w
History / Biographical
John Ware was a past employee of the Kitimat Town Planning Department (1957-1959). He was hired by Hollister Kent, Planning Director for Kitimat. During his two years here, Dr. ware designed the first Kitimat street signs, the Haisla Boulevard overpass, and the Hirsch Creek Park shelter centennial project (1858-1958). He was layed off when Alcan lost major Aluminum buyers and the town expansion halted, resulting in a cut back of Kirtimat employees. He then moved to the USA.
Custodial History
Donated by John Ware.
Scope and Content
Photographs of the Haisla Boulevard pedestrian walkway bridge. Photos include bridge before centre support was installed, and after.
Notes
Further info on the walkway bridge - the pedestrian overpass was designed by John Ware to carry people, heavy wet snow loads and walkway snow plow, with a large saftey factor. The central span was designed as the maximum length of concrete double 'Tee' beam that could be carried on an open flatbed railroad car through the Canadian Rocky Mountains. The pre-stressed central span was supported on each end by poured reinforced concrete cantilevers built clear of the multi-lane highway. Initial structural calculations were done out by the very capable Kitimat Town Engineer Graydon. His calculations were checked by Kitimat's consulting engineering firm in Vancouver. Ware's design and the engineer's calculations were then sent to a pre-stressed concrete manufacturer in Calgary. When the beam arrived it was properly installed between the two cantilevers, and metal handrails were added just before the winter snow arrived. The bridge was deseigned to self support without any needed centre support. However, when city officials saw the light looking long span walkway bridge they decided that it was too fragile and that a column must be placed at mid span to give it adequate support. This decision would result in a fatal vehicle accident, as wet snows caused a driver to lose control and crash into it.
Name Access
Ware, John
Subject Access
Kitimat
Overpass
Haisla
Storage Location
Archives Bay 2 Top Box 42

Haisla Boulevard Pedestrian Walkway Bridge

https://collections.kitimatmuseum.ca/en/permalink/description34896
Part Of
Ware Collection
Description Level
Series
GMD
graphic material
Date Range
1958
Accession Number
2011.4.7
Scope and Content
Photographs of the Haisla Boulevard pedestrian walkway bridge concept.
Preliminary sketch design for walkway bridge over 4 lane divided highway. Designed by Jack Ware in collaboration with:
Kitimat municipal structural engineer-Bryan Graydon
Calgary-prestressed concrete beam design structural engineers
Kitimat municipal structural engineering consultants-Vancouver
Note
Center prestressed beam is supported by the cantilevered beams at each end
Prestressed beam was the longest beam that could be carried on a rail flatbed car across tocky mountains in 1958
Design of supports was simplified to round columns for ease of construction
Part Of
Ware Collection
Description Level
Series
Accession Number
2011.4.7
GMD
graphic material
Date Range
1958
Physical Description
2 Photographs : b&w
History / Biographical
John Ware was a past employee of the Kitimat Town Planning Department (1957-1959). He was hired by Hollister Kent, Planning Director for Kitimat. During his two years here, Dr. ware designed the first Kitimat street signs, the Haisla Boulevard overpass, and the Hirsch Creek Park shelter centennial project (1858-1958). He was layed off when Alcan lost major Aluminum buyers and the town expansion halted, resulting in a cut back of Kirtimat employees. He then moved to the USA.
Custodial History
Donated by John Ware.
Scope and Content
Photographs of the Haisla Boulevard pedestrian walkway bridge concept.
Preliminary sketch design for walkway bridge over 4 lane divided highway. Designed by Jack Ware in collaboration with:
Kitimat municipal structural engineer-Bryan Graydon
Calgary-prestressed concrete beam design structural engineers
Kitimat municipal structural engineering consultants-Vancouver
Note
Center prestressed beam is supported by the cantilevered beams at each end
Prestressed beam was the longest beam that could be carried on a rail flatbed car across tocky mountains in 1958
Design of supports was simplified to round columns for ease of construction
Notes
Further info on the walkway bridge - the pedestrian overpass was designed by John Ware to carry people, heavy wet snow loads and walkway snow plow, with a large saftey factor. The central span was designed as the maximum length of concrete double 'Tee' beam that could be carried on an open flatbed railroad car through the Canadian Rocky Mountains. The pre-stressed central span was supported on each end by poured reinforced concrete cantilevers built clear of the multi-lane highway. Initial structural calculations were done out by the very capable Kitimat Town Engineer Graydon. His calculations were checked by Kitimat's consulting engineering firm in Vancouver. Ware's design and the engineer's calculations were then sent to a pre-stressed concrete manufacturer in Calgary. When the beam arrived it was properly installed between the two cantilevers, and metal handrails were added just before the winter snow arrived. The bridge was deseigned to self support without any needed centre support. However, when city officials saw the light looking long span walkway bridge they decided that it was too fragile and that a column must be placed at mid span to give it adequate support. This decision would result in a fatal vehicle accident, as wet snows caused a driver to lose control and crash into it.
Name Access
Ware, John
Subject Access
Kitimat
Overpass
Haisla
Storage Location
Archives Bay 2 Top Box 42
Part Of
Board of School Trustees, School District No. 80 fonds
Description Level
Item
Date Range
[ca. 1960]
Accession Number
982.91.331
Scope and Content
Photograph of Haisla Overpass
Part Of
Board of School Trustees, School District No. 80 fonds
Description Level
Item
Accession Number
982.91.331
Date Range
[ca. 1960]
Physical Description
1 photograph print : b&w ; 12.8 x 9 cm
Scope and Content
Photograph of Haisla Overpass
Subject Access
Overpass
Storage Location
Photograph Storage