How do you build a temporary dam?
There are many ways to build a temporary dam including using traditional sandbags. To install a temporary dam wall using sandbags, first fill the bags half full. Keep in mind that you will need more than one person to accomplish this as one person will need to hold the bag open while the other fills. After filling, start to stack the bags.
The base of the temporary dam will need to be three times wider than the height in order to maintain stability. After laying each layer of bags, tamp them down to make sure that they are stable and there are no gaps. The finished dam should be triangular.
A trick to strengthen your dam is to alternate the gaps as you lay each layer of sandbags. You only need to tie off bags that are not held down by other bags.
To reinforce your dam, you can create something called a “bonding trench.” To do so, dig a ditch that is approximately two bags wide and one bag deep. Next, place bags in the trench. Use these bags as the center point of your dam. Build your layers on top.
You can also take the extra step to seal your dam. To do this, lay a plastic sheet under where you are going to build your dam. After, build your dam on top of the sheet, then wrap the plastic around the whole dam. You can hold the sheet in place by stacking extra sandbags on the loose end.
Building your own temporary dam is difficult work. Conversely, TrapBags® are quick to install and proven to withstand whatever mother nature brings to bear from mudslides and floods to coastal storms and intense wave action.
Whether you need a short barrier or a tall one, we have you covered with bags in multiple sizes that, like traditional small to large sandbags, can be stacked on top of each other to give you endless protection options. And TrapBag® requires no special fill material. For temporary barriers you can use sand or gravel, or cement if you need a permanent barrier solution.
What are dams used for?
Dams are used in plenty of applications in order to stop or slow the flow of water. Dams can be used to create reservoirs for irrigation or water supply. They can also be used to prevent water from entering a construction site, or to prevent flash floods.
How are TrapBags® used for dams?
Dams are used to hold back water, just like TrapBags® are. Since TrapBags® have stacking capability they are useful for reaching the desired height of dam.
TrapBag® is a low cost, rapid deploy flood and erosion control barrier bag similar to, yet superior to, conventional sandbags. Our bags are designed to protect life and property from natural disasters such as flash flooding, mudslides, mud flows, levee breaches and storm surge. TrapBag® is versatile and may be used for other kinds of protection from security barriers to storm-water control.
TrapBag® is a series of pentagon-shaped bags that are sloped on one side, vertical on the opposite side and open at the top for filling. Each of the cells are connected side by side like an accordion, each cell has a common wall with the next cell, and are collapsed during storage and deployment. The cells are made of high-strength textile. Each of the cells are self-contained yet rely on the next cell for added strength. If one of the cells is compromised, it will not affect the rest of the barrier, which will remain standing strong.
TrapBag® uses 40% less fill material than a stacked sandbag wall, but more importantly a single 100 foot section of 4ft high TrapBag® replaces approximately 8,000 sandbags making TrapBag® Barriers an excellent alternative to small and large sandbags. TrapBag® Barriers can be filled with sand, washed gravel, or concrete. Avoid filling with silt, clay, or rocks greater than 2 inches across.