Ontario's Historical Plaques 

Discover Ontario's history as told through its plaques

2004 - Now in our 15th Year - 2019

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Canal Lake Arch Bridge

Canal Lake Arch Bridge

Photos by contributor Wayne Adam - Posted July, 2009

Canal Lake Arch Bridge

Plaque Location

The City of Kawartha Lakes
At Centennial Park Road (Road 33) and Canal Lake,
1.3 km north of Road 48, east of Bolsover

Coordinates: N 44 33.387 W 79 02.712


Plaque Text

Completed in 1905, this noteworthy structure on the Trent-Severn Waterway is the earliest-known reinforced concrete bridge in Canada. It was built using the Melan system of reinforcement with curved steel girders to reduce the amount of concrete required, resulting in a comparatively slender arch. This structure illustrates the transition from stone to concrete, with massive abutments and surface markings imitative of its masonry predecessors. A precursor of large-span reinforced concrete bridges, the Arch Bridge is an important milestone in the history of civil engineering in Canada.

Related Ontario plaques
Newmarket Radial Railway Arch
The Trent Canal
The Peterborough Lift Lock
The Scugog Route


Kawartha Lakes Plaques

Here are the visitors' comments for this page.

> Posted June 22, 2011
See the related page to the Newmarket Radial Railway Arch (1909). -Wayne [Editor's Response: Added link. Thanks.]

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