PW Trenchless has been at the forefront of proactive rehabilitation of various forms of infrastructure. Active in the BC Chapter of the North American Society of Trenchless Technology, PW Trenchless has been egaged in promoting new ways of installing new pipe, as well as repairing, rehabilitating and replacing existing mains.
Various methods are used by PWT for rehabilitation or replacement – Pipe Bursting, CIPP(Cured in Place Pipe), Sliplining, Swagelining and Primus Lining for pressurized lines.
For new pipe construction, PWT always prefers trenchless solutions over open cut, but can install new pipe via open cut, HDD(Horizontal Directional Drilling), Microtunneling (TBM), Pipe Jacking and Pipe Boring.
10 city blocks of sewer were replaced on a steep street in the City of West Vancouver in late spring of 2019. Starting at the Clive Avenue and going up the hill to Mathers, the complete sewer was replaced.Special challenges …
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Maple Ridge Alley In the early part of 2019 PW Trenchless replaced a sewer for the city of Maple Ridge in a narrow laneway parallel to Lougheed highway. The project was complicated by the tight setback of buildings that in some …
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This was the final part of the contract that was started in 2017 with 5 of 8 Sections completed by PW Trenchless starting in 2015. This project was also the first time PW Trenchless had tried to replace a 200mm …
See ProjectAn alternate tendering process where the contract is awarded to one entity which comprises both engineering and contracting.
Because PW Trenchless Construction offers such innovative solutions for underground utilities, it is often beneficial for the owner to request solutions based on a performance specification. This allows PW Trenchess to offer unique solutions while working with equally innovative engineering companies. Learn more about design - build here!
More InfoNew installation methodologies include HDD & traditional open cut Learn more about new installation here!
More InfoIn this day & age of pipe systems reaching the end of their projected lifespan, pipe replacement and pipe rehabilitation have become major fields of engineering.
PW Trenchless Construction provides viable options such as pipe bursting, loose fit lining and internal pipe re-construction whether partial & fully circumferential. Learn more about pipe replacement & rehabilitation here!
More InfoThe aging culverts under roads and highways in many case have reached the end of their engineered life-span. We consider the rehabilitation or replacement of these culverts to be vital to our built environment.
PW Trenchless has been a pioneer in working with MOTH, railway companies and municipalities in developing rehabilitation methodologies for the hundreds of thousands of culverts that currently exist in BC. We have offered solutions in both procurement and construction from design-build to sliplining, invert rehabilitation and full circumferential relining. Learn more about culvert rehabilitation here!
More InfoOften pipe failure can be concentrated to one section, for various reason, leaving the rest of the pipe in good condition. The repair of these localized failures are know as external point repairs (EPR's).
EPR's demonstrate PW's ability to work as both a trenchless and civil contractor, completing EPR contracts using our civil contracting skills and assisting other pure trenchless contractors who only have the capacity to work in an existing pipe. Learn more about point repairs here!
More InfoPipe upsizing is the fundamental concept of pipe bursting.
The vast majority of pipes are less than or equal to 200mm in diameter, but with today's densification practices of urban design, there is a major demand to increase current capacity to handle extra flow. Pipe bursting provides the ideal solution to this issue, particularly in an urban setting. Learn more about pipe upsizing here!
More InfoHorizontal Directional Drilling is a low impact Trenchless construction service where pipe is installed in a shallow arc along a bore path which has been created by a drilling rig. Often the terms Horizontal Directional Drilling (HDD) and Directional Boring are used interchangeably, but in our industry we use the word “boring” when we utilize smaller sized drilling rigs with small diameters for short crossings in the hundreds of feet, and we use the word “drilling” when we utilize larger rigs with large diameters for long crossings in the thousands of feet. Learn more about horizontal directional drilling here!
More InfoPrimus Line® is a flexible sliplining solution for the trenchless rehabilitation of pressure pipes. The system consists of a flexible Kevlar® reinforced liner and specially developed end fittings. Primus Line® is not bonded to the host pipe and is self-supporting. An annulus remains between Primus Line® and the host pipe.
Developed by experienced engineers, the system is suitable for different media as well as various application needs and has already proven itself in numerous projects.Learn more about primus lining here!
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When you join PWT, you become part of a community of people who are engaged in the most innovative practices in the Trenchless Industry. We have been instrumental in setting up a scientific method for cities to gain carbon offsets/credits from their use of trenchless construction. This system has been reviewed by the BC Government and has been approved as of December 2018. We expect to see it in common use shortly.
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