Charlevoix

Charlevoix Harbor was the first to have wave absorbers installed. The north jetty was rehabilitated in 1981, which included armor stone on the interior or the harbor. The cell is approximately 400 feet long and 30-40 feet wide. The north absorber was constructed experimentally to see if it could aid in wave attenuation. When it was found that the armor stone proved to be very beneficial in reducing wave height within the harbor, the south absorber was constructed in 1989. The two are offset significantly with the south absorber starting over 100 feet further lakeward than the north. The south cell is approximately 200 feet long and 50-60 feet wide. The southern wave absorber's stone is on a 2H:1V slope and is made up of 3.5-6 ton armor stone, 700-1300 lb core stone and 1-50 lb mattress stone. Cross-sections could not be found for the north jetty. Records only indicate that the armor stone placed was over 1200 lbs with smaller varieties used for the underlayer and mattress stone. The predominant wave direction, in deep water, is out of the southwest. The project depth is 18 feet.

Recent Aerial Photo

Wave Absorber Cross Section

None available

Wave Rose

Wave Absorber Location Map

This map shows harbors and locations that have additional wave absorber information available. Light blue dots are shallow draft harbors. Dark blue dots are deep draft harbors. Click on the name of a location to get additional wave absorber information for that location.