Introduction: How to Build a Cofferdam Brace
When using cofferdams for flood control on slopes, a bracing system is necessary. This DIY Instructable will guide you through five simple steps to help you build your own cofferdam brace.
To build a cofferdam brace, you will need the following:
- Safety glasses - SAFETY FIRST!
- Three 10' 2x4s (new or used)
- 16 3" #8 self-drilling screws or nails
- Hand saw with miter box
- Screwdriver or Drill with driver head
- Hammer (if using nails)
- Tape Measure
Step 1: Cut the Wood
Cut the pieces of the brace to the dimensions and angles shown on the drawing.
Step 2: Assemble
Screw or nail the pieces of the brace together. Be sure to use the dimensions from the drawing to assemble the brace correctly.
Step 3: Repeat
Now repeat steps 2 and 3 to make a second brace.
Step 4: Connect Braces With a Beam
Connect an 8' beam over the top of both braces as shown in the picture. This can be done with screws or nails.
Step 5: Setup
Set the bracing system 6' from each side of the cofferdam.
Step 6: How to Build a Cofferdam Brace
The step-by-step instructions with drawings and pictures are on the attached file.