Peterborough boat lift
| Peterborough Lift Lock National Historic Site of Canada Lieu historique national du Canada de l'Écluse-Ascenseur-de-Peterborough |
|
|---|---|
 Lieu patrimonial du Canada |
|
| Recognized since | 1979 |
| Type | National Historic Site |
| ID | 11449 |
| place | Peterborough |
| Coordinates | 44 ° 18 ′ 27 " N , 78 ° 18 ′ 3" W |
| Recognized by | Canadian Federal Government |
| Approved by | Historic Sites and Monuments Act |
| Entry Canadian List of Monuments | |
The Peterborough boat lift is the number 21 descent structure on the Trent-Severn waterway in Peterborough , Canada .
It overcomes a height difference of 19.8 m and can therefore be described as the “largest hydraulic ship lift ” in the world, since all larger ones are not hydraulic, but counterweight lifts .
It was designed by the Canadian engineer Richard Birdsall Rogers and opened on July 9, 1904.
Like all hydraulic ship lifts, it is equipped with two interconnected troughs, in which the upper one goes down due to a higher water filling and thus hydraulically pushes the lower one upwards, which is repeated with each lifting and lowering process.
The Kirkfield ship lift (descent structure No. 36) is also located in the same waterway , although it only has a lifting height of 14.9 m. Another elevator is the Big Chute Marine Railway (descent structure No. 44), which is built as an inclined elevator with dry conveyance . The fourth elevator in this waterway, the Swift Rapids Marine Railway (descent structure No. 43), had to give way to a normal lock in 1965 .
In 1979 the Peterborough Boat Lift was declared a National Historic Site .
Individual evidence
- ^ Directory of Designations of National Historic Significance: Ontario. Parks Canada , accessed July 10, 2010 .