Barrage à Dupuis is a Hydraulic construction located in Sainte-Lucie-de-Beauregard; Montmagny, Quebec.

• Latitude: 46° 46' 3'' North   (decimal: 46.7675248)
• Longitude: 70° 4' 49'' West   (decimal: -70.0803434)
• Topography Feature Category: Hydraulic construction
• Geographical Feature: Barrage
• Canadian Province/Territory: Quebec
• Location: Sainte-Lucie-de-Beauregard; Montmagny
• Atlas of Canada Locator Map: Barrage à Dupuis
• GPS Coordinate Locator Map: Barrage à Dupuis Lat/Long