Docks
Read this before you build one

DOCKS are structures which are built at the waters edge and usually extend into the lake. Docks interact / interfere with natural processes and can, depending on the design, enhance or destroy fish habitat. The shore area of the lake is a very productive area. Over 90% of all fish spawning activity takes place in this area, so all disturbances should be minimized. A well designed dock will create shade that will cool the waters in the near shore (this will attract fish); will not impede the water currents that flow in the near shore area; will be aesthetically pleasing to the eye and blend in well with the existing shoreline while allowing for the safe tying of the watercraft for which it is designed.

In order to have the dock survive the winter ice period, it is best to choose a structure that can be deployed in the spring and removed in the fall. For those parts of the dock that are made of wood, cedar is the wood of choice. Stay away from lumber that is treated with preservatives for those structures that will be deployed underwater as they will slowly leach poisons into the water. Boulders combined with rubble, placed under and / or near the dock will provide habitat for invertebrates and small fish, will trigger many fish species to spawn in this area and will therefore further enhance the biological qualities of your structure. We present three popular choices that meet most of the criteria stated above.

Recommendation: try and avoid dock structures that include permanent cribs as they impede water flow. Ice will eventually destroy the crib in any event.

Floating Dock

Floating Dock

Post-Supported Dock

Post-Supported Dock

Post-Supported Dock

Cantelevered Dock

Cantelevered Dock

Floating Dock
Floating docks
attract fish by providing excellent shade and protection. They do not impede water currents. They do abate wave action in the near shore area, thus reducing the erosion effect of waves pounding the shoreline.

Usually used when the bottom drops off quickly or, alternatively, when the bottom is soft. In the fall these structures are normally pulled to shore and tied there until the following spring.

Post-Supported Dock
Post-supported docks can be inexpensive, are usually easy to deploy and remove from the water, and have minimal impact on fish habitat. They do require a firm bottom on which to sit. An excellent choice in shallow areas where many sections of dock are required. Adding boulders and rock rubble under a long post-supported dock creates excellent fish habitat.

Cantelevered Dock
Cantelevered docks have next to no negative impacts on near shore aquatic habitat. They are relatively expensive however, and require careful anchoring design. One type of cantelevered dock is deployed hanging from its wire guys. This type of dock is normally used in wavy areas that would often destroy any other type of dock, placed directly in the water.

Some post-supported docks (like the one in the photo), are of cantelevered design. They are rotated up for winter storage, then rotated back into position come spring. Only one length of dock is usually deployed using this design. Again, adding rock under the dock improves fish habitat.


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