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Issues - Dams & Free Passage
Dams & Free Passage Links
Related News

Protesters urge Maine to open fishway to alewives
June 12th, 2012

Edwards Dam success foreshadows Penobscot River project’s future
June 9th, 2012

FORBES - River Flows, Fish Flourish
July 2nd, 2009

Related Reports

Backgrounder (En) on Romaine River, Quebec

Rivière Romaine - Response to Hydro Plan

Monitoring of salmon passing downstream and those returning from the ocean has shown that dams continue to be barriers to migration, and may cause high mortality. ASF is actively working to reduce the impact of dams on wild salmon.

In Maine, ASF is committed to the Penobscot Restoration Project that includes dismantling two major dams, and major modifications of a third. For more information, CLICK HERE. The Great Works Dam (see photo this page) is to be dismantled beginning in early 2012.

In Quebec, ASF provided advice on the proposed Romaine River hydro scheme on the Quebec North Shore, near the Labrador border. Click here for Backgrounder (English) or for the
English | French

Hydro dams cause problems in a number of ways:
  • There may be inadequate downstream passage for smolts
  • There may be poorly designed or poorly maintained salmon ladders to allow return migration
  • Accidental problems at fish traps on salmon ladders have occasionally led to significant mortality events
  • A series of dams will act cumulatively to reduce survival
  • In the headpond above a dam, salmon smolt may not even find the dam at the downstream end. ASF research showed this to be happening in the Mactaquac headpond on the Saint John River.

ASF advises on new projects, and works to remove dams where they are no longer needed, or where they are a significant hazard to migrating fish.

ASF has a major project underway in Maine, on the Penobscot River. The Penobscot Project would see a restoration of the river, including the dismantling of the two lowermost barriers - the Veazie Dam and Great Works Dam - and improvements in fish passage above.


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Agreement on Greenland’s Commercial Salmon Fishery Reached Good News For North America
June 12th, 2012
West Greenland catch will be restricted to 20 tonne local consumption limit.

Join the St. Croix River Alewife Migration
June 8th, 2012
On Saturday, June 9, groups and individuals concerned about the future survival of native alewives (gaspereau) on the St. Croix River will symbolically escort this historically and ecologically important fish up the river. 

Newfoundland Fish Farm fish Hopes to Sell Infected Salmon
July 10th, 2012
A salmon farm with iSA in southern Newfoundland wants to sell its condemned salmon for human use.

PEI Fish Kill Larger than Thought
July 10th, 2012
A PEI Fish Kill in Trout River a repeat of last year

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