| 词条 | Powerscourt Covered Bridge |
| 释义 |
|bridge_name= Powerscourt Covered Bridge |native_name= Pont Percy |native_name_lang= fr |image=Aqk_Percy_Aug2005.jpg |image_size= 300px |caption=View (August 2005) looking upriver, from the West bank (Elgin) |official_name= |also_known_as= |carries= 2-lane road (reduced to one lane + 2 sidewalks in 2010) |crosses= Chateauguay River |locale= Between Elgin and Hinchinbrooke |maint= |id= |design= McCallum Truss |mainspan= {{convert|26|m|ft|abbr=on}} |length= {{convert|51|m|ft|abbr=on}} |width= {{convert|6.2|m|ft|abbr=on}} |height= {{convert|8|m|ft|abbr=on}} to top |clearance= {{convert|3|m|ft|abbr=on}} |below= |traffic= Automotive and pedestrian |open= 1861 |closed= |toll= |map_cue= |map_image= |map_text= |map_width= |coordinates = {{coord|45.00871|-74.15953|display=inline,title}} |extra = {{Designation list |embed=yes |designation1=NHSC |designation1_offname=Powerscourt Covered Bridge National Historic Site of Canada |designation1_date=1984 |designation2=Quebec |designation2_type=Classified heritage immovable |designation2_date=1987 }} }} The Powerscourt Covered Bridge is a covered bridge that takes the First Concession Road across the Chateauguay River in Hinchinbrooke, Quebec. It is also known as the Percy Bridge. It was constructed in 1861, and employs the McCallum inflexible arched truss, developed by Daniel McCallum. It was the only McCallum truss bridge that was not a railway bridge, and since wooden truss railway bridges have all but replaced with steel and concrete bridges, it is the last bridge of its kind in the world.[1] In 2009 it was fully restored to its original 1861 plans.[2] It is supported on three masonry piers and the two spans are structurally independent of each other.[3] The Powerscourt Covered Bridge was designated a National Historic Site of Canada[3] in 1984 because:
The bridge was also named an Historic Monument of Quebec in 1987.[4] See also
References1. ^{{cite web |last1=Morgan |first1=James |title=Powerscourt, home to Canada’s oldest covered bridge |url=http://blogs.northcountrypublicradio.org/allin/2016/11/05/powerscourt-home-to-canadas-oldest-covered-bridge/ |website=NCPR |accessdate=9 January 2019}} {{NHSC}}2. ^{{cite web |last1=Galbraith |first1=Robert |title=Gallery: Powerscourt Bridge |url=https://montrealgazette.com/news/Gallery+Powerscourt+Bridge/2359851/story.html |website=Montreal Gazette |accessdate=9 January 2019 |date=2009}} 3. ^1 {{CRHP|12723|Powerscourt Covered Bridge National Historic Site of Canada|24 January 2012}} 4. ^{{CRHP|5285|Pont couvert de Powerscourt|24 January 2012}} 9 : Road bridges in Quebec|Covered bridges in Canada|National Historic Sites in Quebec|Bridges on the National Historic Sites of Canada register|Heritage immovables of Quebec|Transport in Montérégie|Buildings and structures in Montérégie|Bridges completed in 1861|Le Haut-Saint-Laurent Regional County Municipality |
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