Underground Precast

Reliable Underground Precast Solutions for Municipal and Infrastructure Projects

Our underground precast products provide durable, ready-to-install solutions that meet the needs of municipalities, private developers, and departments of transportation. We offer reinforced concrete pipe, manholes, Oil Grip Separators, catch basins, custom vault structures, box culverts, custom head walls, and more—designed to meet rigorous municipal and industrial standards.

Manufactured in a controlled environment, our precast components ensure consistent quality, reduce site labour, and accelerate installation. Whether for stormwater management, transportation systems, or utility infrastructure, Proform’s underground precast products streamline construction and help you build with confidence.

Reinforced Concrete Pipe (RCP)

Manholes

Oil Grit Separators (OGS)

Catch Basins

Custom Vault Structures

Box Culverts

Reinforced Concrete Pipe (RCP) Solutions

Proform supplies high-performance Reinforced Concrete Pipe (RCP) systems for stormwater, culverts, drainage, and utility infrastructure across Western Canada. Our RCP products are built to meet or exceed CSA and ASTM standards and are manufactured for long-term durability in a variety of soil and traffic loading conditions.

We offer a comprehensive range of pipe sizes and accessories, along with custom precast fittings and end treatments to suit the unique demands of your project.

Product Range

Proform’s standard RCP sizes include:

600mm (24") to 1500mm (60") diameter
Radius pipe solutions available for curved alignments or directional changes
Concrete plugs and end caps available upon request for system terminations or future tie-ins (supplied loose for field installation)
Flared ends to improve flow and reduce erosion at inlets or outlets
Custom bends and T-sections to accommodate non-linear alignments or site constraints

Customization is our forte — whether it's specialized fittings or non-standard components, Proform leads the way in delivering tailored concrete infrastructure.

Headwalls & End Treatments

Proform manufactures a full range of headwall and outlet control structures, including:

Standard precast headwalls for culverts and drainage outlets
Flared end sections with integral wingwalls
Custom headwalls, cutoff walls, and connection details

Each component is built to integrate effectively with your project layout and pipe system.

Why Choose Proform for RCP?

✔ Full-service offering: Manufacture & Delivery
✔ Custom fittings and components to meet site-specific needs
✔ Durable, load-rated pipe built for Canadian infrastructure demands
✔ Headwalls and flared ends that perform under pressure
✔ Backed by Proform’s industry-leading experience and quality control
✔ Customization is our strength – built to suit your project

Need a complete concrete pipe system you can count on?
From straight runs to complex culvert configurations, Proform’s RCP solutions deliver durability, precision, and proven performance. Contact us today to get started.

Precast Concrete Manholes

Proform manufactures a full range of precast concrete manholes, delivering robust, versatile, and site-specific underground infrastructure across Western Canada and beyond. Our products support stormwater, sanitary, utility, and specialty applications in municipal, industrial, and commercial settings—backed by Proform’s unmatched reputation for quality and innovation.

Product Range

Available in both round and square configurations, our manholes meet a wide variety of infrastructure demands:

Round diameters from 1220mm (4') up to 3660mm (12')
Square (1-S) manholes for space-limited or engineered layouts
Configurable with flat tops, domed tops, eccentric reducers, and various riser combinations
Engineered to meet or exceed HS20, CL-800 load requirements—including heavy industrial and transportation sites

Lined & Specialty Solutions

Proform offers a range of internal protection systems to improve performance and extend service life:

HDPE liners, epoxy coatings, and other chemical-resistant options
Custom waterproofing treatments, including membranes, wraps, and sealants
Spray foam insulation systems for thermal control and freeze protection in cold climates

These value-added solutions are ideal for sanitary sewer applications, environmental containment, and utility systems exposed to extreme conditions.

Custom Coring & Benching

We provide precision detailing and factory-formed features to simplify installation and maximize flow efficiency:

Coring for inlet/outlet pipes at custom elevations and orientations
Pre-benching for flow channeling, sediment control, and hydraulics optimization
Multiple pipe inverts, drop structures, and complex flow configurations available

Oil Grit Separator (OGS) Units – In Partnership with Hydro International

Proform proudly partners with Hydro International to supply OGS manhole systems designed to treat stormwater runoff:

Featuring proven technologies like the Downstream Defender®
Efficient removal of oil, grit, sediment, and floatables
Available in custom-built precast structures designed by Proform
Commonly used in urban, industrial, and roadway drainage systems

Custom Design Leadership & Airport Expertise

Proform is widely recognized as the industry leader in custom manhole solutions, supporting engineers, contractors, and municipalities with tailored products that address unique site constraints and functional demands.

We are also a trusted supplier of airport-rated manhole systems, with a proven track record delivering manholes that meet the most stringent load and durability specifications for high-traffic and heavy-load environments, including taxiways, runways, and airside service areas.

Why Choose Proform Manholes?

✔ Full size range: 1220mm to 3660mm diameter
✔ Square (1-S) and custom shapes available
✔ Spray foam insulation and full waterproofing options
✔ HDPE, epoxy, and corrosion-resistant linings
✔ Custom coring, benching, and flow features
✔ OGS systems in partnership with Hydro International
✔ Airport-rated options with proven performance
✔ Built to CSA and ASTM standards
✔ Delivered throughout Western Canada and beyond

From complex airport infrastructure to municipal utility networks, Proform is the clear choice for high-performance, customizable precast manhole solutions.

Oil Grit Separators (OGS)

First Defence® Stormwater Treatment System – Supplied in Partnership with Hydro International

Proform is proud to partner with Hydro International to integrate their proven First Defence® hydrodynamic separator into our high-quality precast manhole structures.

The First Defence® is a compact, efficient stormwater treatment solution engineered to remove sediment, oils, debris, and floatables from stormwater runoff. Ideal for both new and retrofit applications, it protects downstream infrastructure and natural waterways by providing effective primary treatment.

Proform manufactures First Defence® units directly into our precast manholes, offering a complete turnkey solution that ensures ease of installation and reliable performance. Our manhole structures are available in a wide range of diameters—from 1200mm (4 feet) to 3660mm (12 feet)—to suit various site requirements and treatment capacities.

Key Benefits:

Precast integration for faster installation and reduced onsite labour
Independently verified treatment performance
Available in 1200mm (4') to 3660mm (12') diameter structures
Compact design ideal for space-constrained areas
Low maintenance with simple access for cleaning

This collaboration brings together Proform’s precision precast capabilities and Hydro International’s trusted stormwater technology to provide innovative, sustainable solutions for today’s infrastructure needs.

Catch Basins

Proform’s precast catch basins are engineered to manage surface water runoff efficiently while protecting underground drainage infrastructure. Designed for strength, durability, and easy installation, our catch basins are ideal for municipal, commercial, and industrial stormwater management systems.

Applications include:

Roadways and highways
Parking lots and commercial sites
Industrial yards and subdivisions

Key features include:
✔ High-strength concrete to withstand traffic loads and environmental stress
✔ Precision-formed inlets and outlets for optimal water flow
✔ Optional grates and frames to meet municipal and site-specific specs
✔ Available in standard and custom sizing for flexibility on any project

Our catch basins help prevent flooding, protect downstream systems, and reduce site maintenance by efficiently capturing and redirecting runoff.

Fast, Reliable Utility Solutions
With the province’s growing focus on resilient infrastructure and stormwater management, Proform’s precast catch basins provide a fast, dependable, and cost-effective solution. Our products are designed for:

Efficient installation with minimal site disruption
Long-term durability in harsh weather conditions
Low lifecycle and maintenance costs

Whether for new developments or infrastructure upgrades, our precast stormwater solutions help keep your site compliant and performing efficiently.

Why Choose Proform for Precast Drainage?
✔ Engineered to meet municipal and industry standards
✔ Built for strength, longevity, and environmental performance
✔ Full-service customization available
✔ Trusted by contractors across Alberta and beyond
✔ On-time delivery and installation support

Custom Vault Structures

Proform’s precast vault structures provide secure, long-lasting protection for critical underground systems. Engineered to handle heavy loads and harsh conditions, our vaults are ideal for housing electrical, communication, and utility infrastructure in both public and private sector projects.

Applications include:

Electrical and telecom systems
Water and wastewater connections
Gas line protection and metering systems

Key features include:
✔ Reinforced concrete construction for superior strength and longevity
✔ Access points and hatches for safe, easy maintenance
✔ Custom sizing, racking, and embed options available
✔ Built to meet municipal, utility, and CSA standards

Our vault structures streamline installation and maintenance, protecting vital infrastructure while minimizing disruption and long-term costs.

Fast, Reliable Utility Solutions

With growing demand for reliable underground infrastructure, Proform’s precast vaults provide a smart solution for utility providers and contractors.

Our products are designed for:

Quick, straightforward installation
Reduced on-site labour and weather delays

Consistent quality from plant-controlled manufacturing

Whether for new utility networks or system upgrades, our vault structures keep projects running smoothly and securely.

Why Choose Proform Vault Solutions?
✔ Engineered for strength, code compliance, and site-specific needs
✔ Available in standard sizes or fully customized designs
✔ Proven across infrastructure, utility, and industrial applications
✔ Backed by decades of precast manufacturing expertise
✔ Delivered on time and built to last

Precast Concrete Box Culverts

Proform manufactures a full range of precast concrete box culverts to support drainage, stormwater, utility, and underpass applications across Western Canada. Engineered for strength, durability, and fast installation, our box culvert systems provide efficient solutions for both standard and custom infrastructure needs.

Product Range

Box culverts are available in a wide range of standard and customizable sizes:

Standard sizing from 1.2m x 1.2m up to 6m x 6m (span x rise)
Available in both wet cast and dry cast production methods
Custom configurations, lay lengths, and reinforcement options available to suit project-specific requirements
Designed for municipal, highway, rail, industrial, and private development applications
Load-rated to meet or exceed HS20, CL-800, E-80, and E-90 specifications

Whether you're working on culverts, tunnels, livestock crossings, or utility passages, Proform’s box culverts are built to perform in a wide variety of site conditions.

3-Sided Box Culvert Solutions

For fish-friendly stream crossings, pipeline crossings, and other environmentally sensitive projects, Proform offers 3-sided box culverts as an open-bottom solution. These designs allow for:

Natural streambeds to remain intact, promoting aquatic habitat preservation
Fish passage and wildlife migration with no obstruction to water flow
Easy integration with natural landscaping, reducing the need for extensive modification or additional environmental protection measures
Ideal for crossings in environmentally sensitive areas, such as parks, nature reserves, and wildlife corridors

These systems provide a cost-effective, environmentally conscious alternative to traditional fully enclosed culverts, offering long-term durability with minimal disruption to the surrounding ecosystem.

Stormwater Management Applications

Box culvert systems are ideally suited for use in underground stormwater detention and retention structures. Proform can supply fully integrated solutions by combining:

Box culvert sections to create large underground storage chambers
Reinforced concrete pipe (RCP) connections for inflow/outflow
Precast manhole risers and access hatches for inspection and maintenance
Headwalls, flared ends, and outlet control structures as needed

These modular systems are ideal for stormwater management in urban developments, commercial sites, industrial yards, and roadway corridors. They maximize storage capacity while minimizing surface disruption and installation time.

Waterproofing & Durability Enhancements

Proform offers a range of custom waterproofing options to meet specific performance and durability requirements:

Concrete admixtures for water repellency and enhanced longevity
Pre-applied liners for aggressive or corrosive environments
Waterproof wraps, coatings, and joint treatments to control seepage and protect surrounding soils

These enhancements help extend the service life of critical infrastructure and ensure performance in high-water table or sensitive environmental zones.

End Treatments & Accessories

To complete your system, Proform also manufactures:

Headwalls and wingwalls to control erosion and provide structure at openings
Base slabs, risers, and transitions to accommodate grade changes
Custom fittings and junction sections for complex layouts

All components are fabricated under strict quality control and built to project specifications.

Why Choose Proform Box Culverts?

✔ Manufactured in CSA- and ASTM-compliant facilities
✔ Available in wet cast for smooth finish and large spans or dry cast for high-volume production
✔ Custom design included — we collaborate with consultants and contractors to deliver tailored solutions
✔ Fast and efficient installation with precise tolerances and modular design
✔ Trusted supplier for infrastructure projects across Western Canada
✔ Ideal for stormwater detention, culverts, tunnels, and underground crossings
✔ Waterproofing solutions available to suit project-specific durability requirements
✔ 3-sided box culverts available for environmentally conscious, open-bottom stream and pipeline crossings

Need a solution for an environmentally sensitive crossing or a large-scale stormwater management system?
With versatile precast solutions like our 3-sided box culverts, Proform leads the way in providing both performance and sustainability. Contact us today to discuss your project needs.

Trenches & Rupture Discs

We design, manufacture, and supply a full range of precast concrete trench systems and rupture discs engineered for critical utility, industrial, and infrastructure applications. Our solutions are built for strength, safety, and easy installation, helping protect underground utilities while improving efficiency and site management.

Precast Trenches
Our precast trench systems are ideal for securely housing and protecting utilities below grade. We offer:

Utility Trenches – For electrical, telecom, and mechanical systems.
Drainage Trenches – For managing surface water and site runoff.
Custom Trenches – Designed to meet specific dimensional and load requirements.

Key features include:

✔ Heavy-duty construction for high-traffic and industrial sites
✔ Pre-fitted access covers, grates, or lids for easy maintenance
✔ Straight runs, elbows, and custom layouts available
✔ Water-tight joints and robust reinforcement for long-term reliability

Proform’s trench systems help streamline installation, protect vital utilities, and reduce on-site construction time.

Rupture Discs
Proform’s precast rupture discs are designed to offer targeted relief in containment systems and critical infrastructure projects. Common applications include:

Flood mitigation and emergency drainage systems
Pressure relief for utility containment structures
Site-specific containment safety measures

Key features include:

✔ Engineered weak points for controlled rupture under excess pressure
✔ Heavy-duty precast construction to integrate seamlessly with other utility infrastructure
✔ Custom sizes and configurations to match project requirements
✔ Designed for predictable, safe performance in critical situations

Rupture discs provide an essential safety component for high-risk areas, allowing controlled system relief while minimizing damage.

Fast, Reliable Utility Solutions
Proform’s precast trenches and rupture discs are designed for:

Easy, efficient installation with minimal labour
Long-term protection and durability in demanding environments
Streamlined utility and drainage construction across industrial, commercial, and municipal sites

Our solutions help ensure critical infrastructure is protected, accessible, and built to withstand the demands of today’s projects.