All Posts

Installing underground utilities is not always as simple as digging a trench from one point to another. When a utility route needs to cross beneath an active road, highway, or rail corridor, conventional excavation can create significant practical challenges. Opening the surface may affect traffic, access, daily operations, and existing infrastructure. In some locations, restoring the road, parking area, or surrounding surface after excavation can also add time and complexity

When an underground sewer starts showing cracks, infiltration, damaged joints, or structural deterioration, the next step isn't always obvious. Should the existing pipe be rehabilitated, or does the project need to replace it? That decision matters for municipalities, utility owners, engineers, contractors, and project managers working with aging underground infrastructure. Two trenchless methods that may come into the discussion are Cured-in-Place Pipe (CIPP) and pipe bursti

A buried pipeline is only as reliable as its joints. Whether it's a municipal watermain, a gas distribution extension, a force main, or an HDD crossing, a poorly executed fusion joint can sit underground for years before a leak or pressure loss reveals the problem, usually meaning excavation, service disruption, and a repair that costs far more than doing it right the first time. The two fusion methods most commonly used on Canadian infrastructure projects, butt fusion and el

Here's the problem most utility drawings don't tell you: they look equally confident no matter how the data was actually collected. A line pulled from a 1990s record drawing shows up on the plan looking exactly as certain as a utility that was physically exposed and measured last week. If you're designing around that line, or excavating near it, that difference matters more than almost anything else on the drawing. ASCE 38 exists to close that gap. It's a standard that classi

This article is general guidance based on publicly available Ministry of Labour information. It does not replace the Occupational Health and Safety Act, O. Reg. 213/91, or legal advice. Always confirm current requirements with a qualified safety professional or the Ministry directly. Excavation work looks routine right up until it isn't. Most trench cave ins in Ontario don't happen on large infrastructure projects. They happen on small, short duration jobs: a water service co

Hydrovac excavation uses two systems simultaneously: a high-pressure water system that breaks up soil and an industrial vacuum that removes the resulting slurry into an onboard debris tank. Water pressure, nozzle configuration, and vacuum draw are adjusted to match soil type, ground conditions, and the sensitivity of infrastructure adjacent to the excavation zone. Heated water systems allow hydrovac to operate effectively in frozen ground. Not all units carry this capability.

Key Takeaways Hydrovac excavation uses two systems simultaneously: a high-pressure water system that breaks up soil and an industrial vacuum that removes the resulting slurry into an onboard debris tank. Water pressure, nozzle configuration, and vacuum draw are adjusted to match soil type, ground conditions, and the sensitivity of infrastructure adjacent to the excavation zone. Heated water systems allow hydrovac to operate effectively in frozen ground. Not all units carry th

What Is Trenchless Technology? Underground utility work in Ontario does not have to mean tearing up roads, disrupting traffic, and spending weeks on surface restoration. Trenchless technology offers a faster, less disruptive alternative, and understanding how it works can help municipalities, contractors, and utility providers specify the right method for their next project. Trenchless technology, also called no-dig construction, is a group of underground construction methods

Key Takeaways Hydrovac excavation uses high-pressure water to break up soil and an industrial vacuum to remove it into a truck-mounted debris tank. No mechanical equipment contacts the ground. It is the standard excavation method for scopes where buried infrastructure is present and mechanical digging would create unacceptable damage risk. Applications include slot trenching, curb-stop repair, frozen ground excavation, personnel maintenance access holes, drill fluid removal,

Key Takeaways • Open-cut per-foot installation cost is often lower, but total project cost frequently favours trenchless once restoration, traffic control, and excess soil management are factored in. • Ontario’s O. Reg. 213/91 imposes escalating safety requirements for open-cut excavations beyond 1.2 metres deep, including shoring, engineered support systems, and professional engineer involvement at 6 metres. • Municipal tenders that default to open-cut without requiring m

Key Takeaways • Horizontal directional drilling (HDD) installs underground utilities in three stages: pilot bore, reaming, and pullback. Each stage serves a distinct function and requires different equipment configurations. • The pilot bore is steered using a sonde transmitter tracked by a walkover locating system, allowing the operator to navigate around existing utilities and maintain the designed bore path. • HDD installs water, sewer, gas, electrical conduit, and fibre