Precision-Built Secondary Containment for Heavy Industry

At Seven Sons Construction, we design and build containment pits and trenches that protect your people, your equipment, and the environment. From chemical processing to manufacturing and utilities, our concrete containment solutions are engineered to handle harsh conditions, heavy loads, and strict regulatory requirements.

What are containment pits and trenches?

Containment pits and trenches are reinforced concrete structures designed to:

Capture leaks and spills from tanks, process lines, and equipment

Channel and store liquids for safe removal or treatment

Provide secondary containment in case of primary system failure

They’re a critical part of any facility’s environmental and safety strategy—especially where oils, chemicals, wastewater, or process fluids are present.

Where our containment systems are used

Industries we serve:

Manufacturing & processing plants

Chemical and coatings facilities

Food & beverage and pharma

Power generation & utilities

Water & wastewater treatment

Common applications:

Equipment and pump pits

Chemical and wastewater trenches

Tank farm containment

Truck and rail loading areas

Process line and drain trenches

Built for durability, safety, and compliance

Our containment pits and trenches are designed to stand up to real-world abuse:

Reinforced concrete structures

Engineered for heavy loads, traffic, and equipment vibration

Chemical-resistant options

Compatible with coatings, liners, and specialty mixes specified by your engineer

Leak control and drainage

Sloped floors, sumps, and clean-out points for efficient liquid management

Integration with plant systems

Tie-ins to existing drains, piping, and equipment foundations

We work closely with your engineering team, equipment suppliers, and safety personnel to ensure the final system supports both operations and compliance goals.

Our approach to containment pits & trenches

1. Site evaluation & coordination

We review your drawings, visit the site when needed, and coordinate with:

Structural and civil engineers

Mechanical and process contractors

Plant maintenance and safety teams

2. Layout, excavation & shoring

Precise excavation to design depth and alignment

Shoring and safety measures for deep or complex trenches

Protection of existing utilities and structures

3. Formwork, reinforcement & concrete placement

Custom formwork for pits, channels, and sumps

Proper rebar placement for load and crack control

High-quality concrete placement and finishing

4. Details that make systems work

Embed plates, anchor bolts, and equipment pads

Pipe penetrations, block outs, and sleeves

Slopes, curbs, and transitions to surrounding slabs

5. Coordination with coatings & liners

If your project includes specialty coatings or liners, we:

Prepare concrete surfaces to the specified profile

Coordinate schedule and access for coating/lining contractors

Protect finished surfaces during the remainder of construction

Why facilities choose Seven Sons Construction

Industrial focus: We understand the demands of plants, mills, and heavy facilities.

Complex projects: Tight spaces, active facilities, and critical shutdown windows are familiar territory.

Quality and reliability: We build containment that performs when it matters most—during a spill, leak, or emergency.

Partnership mindset: We don’t just pour concrete; we help you create a safer, more resilient facility.

Plan your next containment project

Whether you’re upgrading an existing line, adding new process equipment, or building a greenfield facility, Seven Sons Construction can deliver containment pits and trenches that fit your operation and your schedule.

Let’s talk about your project. Share your drawings, specs, or even just an idea, and we’ll help you turn it into a constructible, durable solution.