Photos, videos and docs of Jonathan Cohen, with the keywords: "waterfall"

Into the Maelstrom – Hog’s Back Falls, Ottawa, Ontario, Canada

nobody@ipernity.com (Jonathan Cohen) — Fri, 14 Oct 2016 15:09:23 +0000

The Hog's Back Falls, officially known as the Prince of Wales Falls, but rarely referred to by this name, are a series of artificial waterfalls on the Rideau River in Ottawa, Canada. The falls are located just north of Mooney's Bay and the point where the Rideau Canal splits from the Rideau River.

Prior to the construction of the Rideau Canal, these were a gentle set of rapids originally known as Three Rock Rapids. The name Hog's Back came into use shortly before canal construction. Civil Engineer John MacTaggart, in 1827, described them as "a noted ridge of rocks, called the Hog’s Back, from the circumstances of raftsmen with their wares [timber rafts] sticking on it in coming down the stream." These rapids were about 600 metres (2,000 feet) in length with a drop of about 1.8 metres (6 feet). They were navigable by canoe, no portage was required.

As part of his concept for a slackwater navigation system, Lt. Colonel John By's design for the Rideau Canal called for a large dam to be raised in this location. It would divert water from the Rideau River into the artificially-created section of the canal leading to the Ottawa locks. It would also flood the Three Island Rapids located upstream (the head of present-day Mooney's Bay marks the foot of these rapids).

The building of this dam provided one of the greatest construction challenges (it collapsed 3 times during construction) of the Rideau Canal, but when completed in 1831 it flooded the Rideau River at that point by 12.5 metres (41 feet). To accommodate the natural flow of the Rideau River and to prevent damage from spring flooding, a large waste water weir was constructed. The water from this flows though a channel that was excavated in the eastern bank of the Rideau River. This created the Hogs Back Falls that we see today.

The head of the original rapids is now buried beneath the canal dam, but the lower section of the rapids can still be seen today. This location marks where the route of the Rideau Canal leaves the Rideau River and enters a man made canal leading to the Ottawa locks. A series of locks lowers boats from this location to the Ottawa River

A Rocky Start to Lunch – Grounds for Sculpture, Hamilton Township, Trenton, New Jersey

nobody@ipernity.com (Jonathan Cohen) — Wed, 06 Apr 2016 21:13:15 +0000

Photos, videos and docs of Jonathan Cohen, with the keywords: "waterfall"

Into the Maelstrom – Hog’s Back Falls, Ottawa, Ontario, Canada

A Rocky Start to Lunch – Grounds for Sculpture, Hamilton Township, Trenton, New Jersey

Cunningham Falls – Cunningham Falls State Park, Thurmont, Maryland

Falling Water – Alpine Garden, Botanical Garden, Montréal, Québec

"Symbiosis of Man and Nature" – Mosaïcultures Internationales de Montréal, Botanical Garden, Montréal, Québec

The Larger Waterfall – Japanese Garden, Portland, Oregon

The Smaller Waterfall – Japanese Garden, Portland, Oregon

Ithaca Falls – Ithaca, New York

The View from a Grotto – Watkins Glen State Park, Watkins Glen, New York

Downstream From the Falls – Blackwater Falls State Park, Davis, West Virginia

The Falls – Blackwater Falls State Park, Davis, West Virginia

At the Foot of the Falls – Blackwater Falls State Park, Davis, West Virginia

Tinpot 'Cuda – Botanic Gardens, Denver, Colorado

Steps on the Stream – Great Falls, Maryland

Waterfall – Nitobe Memorial Garden, Vancouver, B.C.

Just 15 Miles from the White House