We are going to build a small cribb for a dock that usually stands on land, but during high water once a month, it will become partially submerged. The cribb is being built along the east coast north of Gävle. We plan to use fresh pine logs for the cribb. It will obviously shrink a bit over time – but will this be problematic? Around the dock, we are building a skirt against the ice using treated wood. Should we use dowels or fasten with iron and screws? Please provide some good advice!
Backa1973 said:
Too bad you haven't received any answers. I'm in a similar situation. Have you built a stone cradle and how did it handle the ice?
Hello,
Yesterday I ordered an excavator operator to come here and lay out stones for a type of stone pier. So, not a stone crib. I will place an unused gangway on top, but remove it for the winter. The pier will extend about 2.5 meters from the shoreline in the bay, about 1 meter wide. There will be a small indentation inside the pier where the boat will be quite hidden from thieves. If you get in touch, I can send a photo when it's finished.
My solution will cost about 20,000 SEK. A stone crib would have cost at least double that. I definitely could not have made a stone crib myself.
Yesterday I ordered an excavator operator to come here and lay out stones for a type of stone pier. So, not a stone crib. I will place an unused gangway on top, but remove it for the winter. The pier will extend about 2.5 meters from the shoreline in the bay, about 1 meter wide. There will be a small indentation inside the pier where the boat will be quite hidden from thieves. If you get in touch, I can send a photo when it's finished.
My solution will cost about 20,000 SEK. A stone crib would have cost at least double that. I definitely could not have made a stone crib myself.
There will be substantial boulders at the bottom, then stones large enough that the ice cannot disturb them.
N NilsAgaton said:
Sounds good! We have placed a plank and at the end, we set a concrete well, approximately 160x40 cm, as a foundation. We've embedded it about 10 cm into the bottom and then filled it with stones before laying the plank on top. It will be interesting to see if the ice manages to move it. I'm considering filling up with simpler stone caskets in connection to the piles that are inside the well but still quite exposed to the ice. In my view, it's a bit unclear how large the stone caskets need to be for the ice not to grip them. But, of course, that depends on how harsh the winter is. It will be interesting to see if the plank stands for 2-3 months or 20-30 years. It feels like it will be one or the other.