Keep crews working. Keep water out. Keep the schedule.
When groundwater or surface flow threatens your work area, a water-filled cofferdam lets you establish a dry, code-compliant workspace fast—without sheet piling or heavy equipment. Sections are positioned, connected, and filled with site water to create a continuous seal that resists both seepage and overtopping for municipal, industrial, and commercial projects.
From culvert replacements and outfall tie-ins to bridge work and shoreline repairs, inflatable cofferdams give municipalities, public works crews, and contractors a reusable alternative to sandbags and rigid cofferdams that is easier to stage, move, and store between jobs.
Need spec support? Our dewatering specialists will talk through flows, substrate, footprint, access, and phasing to help you choose cofferdam sizes, layouts, and pump setups that fit your site conditions and permit requirements.
Talk with a Dewatering Specialist
Explore Site Dewatering Cofferdam Applications
General Construction Projects
Are you wondering how to keep your entire site dry when unexpected rain threatens to flood your work zone? Position our inflatable cofferdam sections around the perimeter and fill them with water. Once in place, you get an instant construction barrier that holds back both groundwater and surface runoff.
These cofferdams are light as air when empty yet become a sturdy water fillable barricade when filled. A two-person crew can set them up before your morning coffee gets cold.
Purchase these barriers to make dewatering for construction sites part of your standard toolkit, or rent them for a one-off job. And the best added bonus is that they pack down small so you can easily store them for the next project.
How It Helps:
- Rapid perimeter isolation with minimal equipment
- Reinforced seams for reliable performance under pressure
- Works seamlessly with standard submersible pumps
Don't let rainfall and messy sites add to your stress. Get a construction dewatering barrier to hold off the stress.
Pipeline Construction
Are you tired of bulky sandbags hogging all the spotlight on your pipeline tests? Simply link our inflatable cofferdam segments tightly around pipe joints and the construction area to create a dewatered jobsite. With this system intact, a dry trench is guaranteed every time.
You can say goodbye to bulky trench boxes forever. These reliable water fillable barricades hug uneven trench profiles for a snug, consistent fit every time.
When you are finished, break down and move on in just minutes. Keep the water out with portable water filled barriers.
How It Helps:
- Custom lengths for a perfect seal
- Built to handle test pressures
- Fast setup and teardown
Wave goodbye to trench hassle and say hello to smooth, uninterrupted testing.
Foundation Excavation Dewatering
Are you worried that your foundation pit will become a murky pond after the very first rain? Surround the excavation perimeter with our robust inflatable cofferdam then pump out the water efficiently. With this approach, a dry pit is delivered every time.
The inflatable cofferdam adapts to any trench shape and easily teams up with your chosen pumps to tackle even high groundwater flows.
Keep your footings solid and your project schedules on track with no mud slipping in below.
How it helps
- Designed to handle heavy groundwater pressures
- Available in heights up to eight feet for deep excavations
- Works with all common dewatering equipment
You will have no more mud wrestling to worry about for your footings. Solid foundations start dry.
Key Benefits of Inflatable Construction Cofferdams
- Rapid deployment, minimal labor: Two-person crews* can stage, connect, and fill sections with standard pumps—no cranes, no pile driving.
- Modular & reusable: Connect sections to match irregular shorelines, utilities, or complex footprints, then drain, roll, and reuse on the next site.
- Environmental & permit friendly: Supports typical local discharge permits and BMPs while reducing turbidity, noise, and bottom disturbance versus rigid cofferdams.
- Safer sites, fewer change orders: Stabilizes work zones for culverts, outfalls, utilities, bridge footings, shoreline repairs, and emergency bypass.
- Buy or rent: Project-based rentals and fleet programs available, with submittal packages and cut sheets ready for review.
- Typical use cases: Culvert replacements & headwalls; storm drain/outfall tie-ins; bridge & marine maintenance; shoreline restoration; emergency bypass & flood response.
*Large-format sections may require a telehandler or crane depending on site access and lift distances.
Construction Dewatering Cofferdams In Action
Construction Dewatering FAQ
- EPA Inspection and Monitoring Guide for Construction Dewatering
- Construction and Development Effluent Guidelines (40 CFR Part 450)
*Always confirm requirements with your project manager and local authorities to ensure you have the most accurate and up-to-date guidelines*