Feb 27, 2026
Ice lifting (or “ice-jacking”) causes significant damage to Wisconsin piers when freezing water expands and adheres to pilings, pulling them from the lakebed as water levels fluctuate. This often destroys docks and boat lifts, particularly on larger lakes necessitating removal, de-icers, or specialized, heavy-duty structures to prevent damage.
Ice jacking occurs when the water rises to a higher level, freezes, and then recedes, leaving a layer of ice along the high-water mark. As the water settles, it freezes again, leaving another layer of ice. As the water rises again, it breaks the second level of ice and pushes it into the first.
The process is similar to jacking up a car to change a tire, hence the name, “ice jacking.” If ice jacking is allowed to persist, pressure will increase, and it can eventually lift your dock enough to pull the pilings out of their foundation, and sometimes even snap them in half.
The Ice Jacking Progression
- Freezing and Gripping: As water temperatures drop, ice forms around a pier leg or piling, locking it firmly.
- Water Level Change: The water level rises due to wind or lake ice expansion forcing water up through cracks. The ice sheet rises with it, pulling the pier leg up.
- Refreezing: As the water level recedes or the ice settles, the ice freezes at a new position around the piling.
- Repetition: This cycle repeats throughout the winter, gradually “jacking” the post out of the lake bed.
Common Causes and Effects
- Water Level Fluctuations: Tides are a common cause of lifting on the coast. In the Great Lakes region, wind and rapid weather changes or manual water regulation (dams) can cause similar fluctuations.
- Ice Expansion: When water turns to ice, it expands by approximately 9-10%. This puts massive pressure on the shore, sometimes called an “ice shove” or “ice ridge” formation, which can damage shorelines and attached structures.
- Damage: Pier legs can be lifted out of their foundations, resulting in crooked, unstable, or destroyed docks.
Prevention
The most effective way to prevent ice jacking is to keep an ice-free zone around the pilings, often achieved by:
- Installing De-icers or Bubblers: Using agitators or air blowers to bring warmer, deeper water to the surface, preventing thick ice from forming around the pilings.
- Removal: Removing floating or temporary dock sections for the winter.
- Using Sleeves or wrap: Placing pile sleeves or wrap over the pilings to reduce the grip of the ice.
Dock Protection Solutions
De-icer
A dock de-icer (Ice Eater) is a great solution, which works as an agitator by circulating the water toward the surface. The device is submerged underwater, where it creates a thrust of water toward the surface. This creates a vertical current effect, which keeps the water moving outward to open up large holes in the ice.
A dock de-icer can also be angled closer to horizontal to create a longer but narrower opening.
Dock Bubblers
Bubblers work by releasing small air bubbles through an underwater hose. The hose has small perforations and is powered by an air compressor. Bubblers can be beneficial if the water near your dock is shallow as they don’t stir up as much sediment as agitators can in shallow water.
Removal
The safest method for preventing ice damage is to completely remove three season and floating pier sections from the water and store them on dry land. Store them far enough away from the shore to protect from ice shoves. This eliminates the risk of ice damage altogether.
Protective Sleeves or Wrap
Placing HDPE (high-density polyethylene) sleeves or specialty wraps on pilings prevent ice jacking by reducing friction, allowing ice to slide along the pile rather than lifting it as water levels shift. These jackets, which can be installed before or after installation, often feature smooth surfaces to prevent ice adhesion.
Using these preventive methods help maintain the structural integrity of the pile, preventing the need to replace or re-drive pilings that have been lifted by ice.
Pier & Waterfront Solutions LLC can help protect your dock from ice damage. Call us today with questions about de-icers, bubblers, or any needed repairs.
Pier & Waterfront Solutions 920-493-4404
Nov 3, 2025
Waterfront enthusiasts!
The 2025 season may be coming to an end, but now is the best time to start preparing for next year. Pier & Waterfront Solutions recommends planning early by ordering new products in the fall or early winter for installation the following spring. Lead times for new products vary, and planning ahead is crucial for custom designs, special materials, and scheduling a professional installation. Ordering early saves money and avoids delays.
- Dock and pier systems
- Aluminum docks
- Steel docks
- Permanent piers
- Boat lifts
- Cradle lifts
- Free standing lifts
- Elevator lifts
- Canopies
- Steps and stairs
- Many accessories
- Shoreline work
- Riprap
- Dredging
- Barge work
- Rock drilling
- Piles
We specialize in installation, removal, and shoreline solutions for Door County and other Wisconsin waterways.
PWS provides sales, delivery, and installation of piers, lifts, and other waterfront equipment, and accessories. Call now to have your pier designed, built and installed for next season.
Pier and Waterfront Solutions will design and manufacturer custom-built docks and floating piers for both residential and commercial applications. Customized docks and piers require additional time for engineering, design and manufacturing. Ordering early will ensure your products are ready for spring waterfront activities.
The first step to enjoying your waterfront is getting there! Waterfront Steps and Stairs are a valuable property addition. They provide safe, convenient water access while enhancing aesthetics, and boosting property value. Besides design and manufacturing, most steps and stairs require installation planning and preparation of the site. Order now to transform your “water-view” property into a waterfront adventure.
Consider accessories to include when ordering you’re your pier:
Boat lift accessories: Winch motors, canopies, and solar charging systems.
Pier accessories: Benches, ladders, bumpers, and cleats will make your pier ready for family and friends.
Toy accessories: Paddleboard/ Canoe/ Kayak Rack and Personal water craft docks make space for children and grandchildren and their toys.
How PWS can help:
- Schedule a site meeting: consider the type of pier (three season, permanent, or floating), your lakebed, shoreline work, and the accessories you want installed. Review example drawings and photos of pier and waterfront configurations.
- Request a quote: Reach out to PWS to discuss your project and a firm price. Since it is currently November 2025, contact us as soon as possible to meet the timeline for your spring 2026 installation.
- Annual follow up service: Ask about annual installation and removal for the pier products you are interested in.
Pier & Waterfront Solutions is your single source for waterfront excellence. We handle everything from design to construction and after-care, so you can focus on effortless waterfront living and cherishing every magical moment on your pier.
Don’t settle for an ordinary pier. Let’s design your waterfront masterpiece together. Contact us today at 920-493-4404 for a free consultation and unlock the full potential of your waterfront property.
Jun 5, 2025
If you live or work near the water, you know how unpredictable the weather can be. One day it’s calm and sunny, then suddenly, a storm rolls in. When that happens, your dock can take a big hit if it’s not ready. Extreme weather preparation isn’t just about playing it safe. It’s about protecting your dock, your boats, and everything else that depends on it. Whether you’re a homeowner, marina manager, or business owner, getting your dock ready ahead of time can save you stress, time, and money.
Why Extreme Weather Preparation Matters
Docks are tough, but they are still exposed to the elements. Heavy winds, rising water, and rough waves can cause serious damage, especially if your dock isn’t built to handle those conditions.
Here’s what can happen when a big storm hits a dock that isn’t prepared:
- Decking can break or come loose
- Hardware can snap
- Docks can drift or flip
- Pilings can weaken
- You could lose boats, gear, and equipment
Taking steps now can help avoid big problems later.
How to Prepare Your Dock for Bad Weather
When it comes to extreme weather, your dock should be near the top of the list of preparations. Getting ready before a storm hits can prevent costly damage. The good news is, preparing your dock doesn’t have to be difficult. With a little time and the right steps, you can help make sure your dock stays safe and secure even during the roughest conditions.
Take these steps:
- Check Everything Over
The first step is simple: give your dock a close look. Walk along the entire surface and check all the main components. Think of this as a routine check-up. Your dock needs regular inspections.
What to look for on your free-standing dock.
- Bolts and fasteners: Make sure they’re tight, not rusted, and not missing. Loose or corroded bolts can cause parts of the dock to come apart under pressure from waves or wind.
- Deck boards: Check for cracks, warping, or signs of rot. Damaged boards are more likely to break in a storm and can be a safety hazard.
- Anchoring lines or pilings: Your dock needs to stay in place, even if the water gets choppy. Make sure anchor lines are strong and not frayed. Pilings should be secure and not leaning.
- Make sure all legs are in contact with the lake bed.
- The deck Height above water is adequate for waves.
- To avoid damage to water craft, make sure the lift is fully up and not set too high.
What if you find damage?
Don’t wait. Even small problems can turn into major issues during a storm. Replace damaged parts right away. If you’re not sure how serious something is, it’s better to be cautious and talk to a professional dock builder or maintenance expert. Pier & Waterfront Solutions can help you repair or replace damaged docks.
- Clear the Area
The next step in extreme weather preparation is to remove anything that could fly away or get tossed around during high winds or heavy rain.
What should be taken off the dock?
- Chairs, benches, or tables (unless fastened to dock)
- Dock boxes or storage bins (unless fastened to dock)
- Coolers, tools, or cleaning supplies
- Fishing gear, life jackets, or water toys
Even items that seem heavy can be moved by strong winds or waves. Once something is airborne, it becomes a hazard. It could damage your dock, nearby boats, or other people’s property.
What should stay?
Only items that are securely bolted down and weather-resistant should remain. If you’re unsure, it’s better to remove it. If you have valuable items, store them inside where they’ll be safe from wind and water.
- Secure Your Floating Dock
Floating Docks offer advantage during storms. They rise and fall with changing water levels, but they still need to be secured properly to prevent drifting, flipping, or crashing into other structures.
How do you secure a floating dock before a storm?
- Floats or support systems: Check the flotation system. Look for any signs of wear or damage. If one float fails, it can throw off the balance of the entire dock.
- Check the anchors: Your dock should have a strong anchoring system, whether it’s chain, cable, or piling-based. Look for signs of wear and rust. Tighten or replace hardware as needed.
- Inspect the guide poles or slides: These help keep your dock in place while allowing it to move up and down with the water. Make sure they’re not bent or damaged.
- Allow for movement: Don’t tie your dock too tightly. If the water level rises, the dock needs space to float upward. Too much tension can snap lines or damage the dock.
- Secure attachments: If you have ramps, gangways, or other attachments, make sure they are reinforced and can flex with the dock’s movement. These connecting points are often where damage starts.
Pier & Waterfront Solutions builds standing and floating products that are built to last. All of our systems are made in the USA and designed to fit your exact needs, whether it’s for a private home, a public marina, or a government project. We believe that a dock should be more than functional. It should be safe, sturdy, and ready for anything.
Click here to explore Pier & Waterfront Solutions. We’re here to help you get your dock ready, rain or shine!
Aug 31, 2021
DOCK SWAY BRACE
Is a sway brace used on your dock? If not, does your dock sway as you walk on it? There are several reasons this can happen to any dock or pier.
There are main TWO reasons for dock movement.
You need to distinguish between the two types of movement. Is it an up and down movement, or is it a side to side movement?
First, Let’s tackle the Up and Down movement.
When installed, PWS makes sure the legs are firmly on the bottom. This typically makes the dock stable for most people.
Yet, over time, storms can wash out or move the sand or rocks under the footpads. Sand is more susceptible to this action.
It’s the same effect that erosion has on the shoreline. First, it washes away sand and small stones from under the footpad. Then, it continues to work on the remaining stones and rocks. When enough materials are removed, there is nothing left to support the leg.
At this point, you may experience the sensation of up and down movement as you walk.
How do we prevent it from happening?
There is no way to completely prevent washing out of the footpads. If we disturb the lake bottom too much, it weakens the tightly packed base. Disturbing the lake bottom makes it easier for the wave action to wash the sand away. The sand (or small stones) are loosely packed and have small openings in them.
The only “cure” is to reset the legs firmly on the bottom. We notice this frequently occurs after strong storms. The “white caps” you see are moving the water under the surface also.
The second type of movement is actual “sway.”
“Sway” is the side-to-side movement when the dock is set higher above the water.
The current water level is still above average even though it is down from 2019 and 2020. This is evidenced by the continued erosion happening up and down the shoreline.
PWS raises your dock up to protect it from high wave action during the summer. When the frames are adjusted higher, the pier becomes less stable. Walking on the dock will cause a side-to-side movement because the center of gravity is higher.
Think of a simple fishing pole. When the pole moves at the bottom, the movement is amplified at the top of the pole. The higher the frames are raised, the more side movement will occur.
See this link for more information.
There is a solution.
A sway brace on the legs reduces the sway side sway. You’ll feel more secure as you walk the length of your dock.
Sway Brace
Does every set of legs need sway braces?
No. PWS will make recommendations based on the heights and lengths of your dock or pier. Often, we add a single brace on a pair of legs. Next, we alternate the position in the opposite direction on the next set of legs.
One brace is attached near the bottom of one leg and clamped higher up on the opposite leg. This depends on the height of the legs.
It may involve a crew member having to submerge in the water to reach the bottom of the leg. In spring, that is not something anyone wants to do.
Does it matter if I have an aluminum or steel frame?
A steel frame is less likely to need braces than an aluminum frame due to its own weight. Different configurations are available for aluminum frames, but the principle is the same.
Braces are available for new installations, as shown here. There is an add-on version (independent components) for existing frames. They can be added to existing dock legs if needed. Either version will help stabilize your dock in deeper water.
Will sway braces help your dock?
Call Jerry at 920-493-4404 for more details.
Where is Pier & Waterfront Solutions?
Located at 7325 St. Hwy 57, it’s 3 miles south of Sturgeon Bay and 1 mile past the intersection of Cty MM (heading north). Look on the right side, one mile north, at the next corner (Idlewild Road and Hwy 57).
Is PWS OPEN?
Pier & Waterfront Solutions remains “open.” We have implemented measures to help ensure the safety of our employees and visitors. PWS continues to work to maintain the trusted service that you have come to expect.
PWS implemented these preventive measures:
1. Conducting as much business as possible by email, text, or phone.
2. Site visits will continue. When in-person contacts are necessary, we will follow “social distancing” guidelines.
3. Our display yard is always open for you to examine at your leisure. All displays have a numbered, red tag on them. If you want more information or pricing, please reference that number.
What can YOU do to help us?
1. Please conduct as much business as possible via emails, messaging, and emails. This step protects everyone involved.
2. When you see our crews installing equipment, please practice “social distancing.” Remain at a safe distance.
Thank you for allowing us to work with you.
YES – PWS is OPEN and waiting for you!
Please call, message, or email PWS with any questions.
Let’s all stay safe!
Aug 19, 2021
Thanks for the prompt help with our dock. Looks Great. Guys were very efficient. Hope to continue your services going forward.
Jim G. Door County
