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How Much Does a Cofferdam Cost?

Cofferdam cost and information - Dam-It Dams

Cofferdam costs vary, and there is no simple answer to the question of cost when it comes to this. The cofferdam itself is simple, but the multiple factors, including size and transportation, add a slight complexity to the expenditure of installation. So more importantly, is the question of cost only about the cofferdam itself, or the cost of a cofferdam system? There is a big difference between the two.
The base cost of a temporary cofferdam depends on three factors – length, width, and height. Once you know the dimensions of the cofferdam(s) your project requires, call us for a free cofferdam cost estimate. (Note: When estimating the total cost of a cofferdam, be sure to factor in transportation.)
Selecting a contractor to manufacture and install a temporary cofferdam to meet your specific needs is one of the most important decisions you will make to ensure the success of the project.

 

 

There are several factors to be considered in cofferdam cost:

  • Number of Contractors
  • Cofferdam Size
  • Equipment
  • Who will provide the following equipment that is recommended for cofferdam installations?
  • Project Personnel
  • Who will be responsible for provide the following project personnel?

In Static Water (Still)

Two to four workers are typically required to install small (less than 4 feet in height) cofferdams in stationary water.

Three to six workers are typically required to install large (4 feet or higher) cofferdams in stationary water.

There should always be one designated person manning the pumps. Ropes are not typically needed but can be used to maneuver the cofferdam in deeper water depths.

In Moving Water

Three to seven workers are required to install cofferdams of any size in moving water.

There should always be one designated person manning the pumps. Ropes are recommended for safety and stability of the product and crew in moving water.

Please refer to the chart below for the personnel requirements and their effect on cofferdam cost:

 

Cofferdam Size (feet)
Ropes
Workers in the Water

Workers Manning Pumps

1-4
0
1-3
1
4
2
2-4
1
6
3
2-4
1
8
4
2-4
1
10+
4
2-6
1

Note: Strong water currents require more personnel to ensure proper installation and the safety of all workers.

Note: Strong water currents require more personnel to ensure proper installation and the safety of all workers. These numbers are our recommendations, you could always add more as you see fit. Safety is priority!

 

Site Preparation

Adding the cost of each item, in addition to any contingency amount for conditions beyond your control, such as weather or more hands needed, will be a good indicator of the cost of your cofferdam system. Preparing the site to the best of your ability is always the best bet, to avoid the unforeseen, but it isn’t always possible. Make sure to pump are as dry as possible, remove rocks, plants, branches, debris, etc, to ensure the best achievable conditions.

Need Help?

See how a cofferdam works

As the Midwest’s Largest Manufacturer of water-filled temporary cofferdams, we are here to help. If you have any questions or need additional information about the manufacturing or installation of cofferdams, please contact us at (248) 755-7383 or click the link for free estimate below.

Read more about cofferdam contractor requirements.

 

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