Built to spec
Built to your engineered drawings, survey, and the real site conditions, not a one-size-fits-all approach forced to fit.
Commercial & Heavy-Civil Construction
Auger Boring and Pipe Ramming
Install steel casing beneath roads, rail corridors, and active sites without opening the full surface crossing for municipalities, utilities, developers, and civil contractors.
- Licensed, Insured & WSIB-Covered
- 20 Years in Business
Get a Quote
Tell us what you need and we’ll get you a quote. Licensed, insured & WSIB-covered · Free, no-obligation quote & on-site assessment.
Get a Quote
Licensed, insured & WSIB-covered · Free, no-obligation quote & on-site assessment.
20 Years in Business
Licensed, Insured & WSIB-Covered Completed to code & Ontario requirements Completed on site and built to the drawings Performed & installed on site across Ontario
Why Harrowgate Group
What to expect from auger boring and pipe ramming
Made to last
Durable materials and methods chosen for the load, traffic, and environment on site.
Quote-ready
Send specs, drawings, or photos and get a free, no-obligation site visit and estimate with no guesswork.
Code-conscious
Installation and site work completed in accordance with Ontario requirements.
Our Process
How we plan and deliver auger boring and pipe ramming
Auger boring and pipe ramming install steel casing on a controlled alignment beneath an obstruction, limiting surface disruption while creating a protected route for water, sewer, electrical, or communications infrastructure. Harrowgate delivers the work for municipalities, utilities, developers, and civil contractors across the GTA and Ontario.
- 01 Send your inquiry, a few photos or a description of the site.
- 02 We come out, assess the site, take measurements, and confirm the scope.
- 03 We complete the auger boring and pipe ramming on site, to the load and finish the job needs.
- 04 We install it, finish to grade, and clean up, one accountable crew, start to finish.
Local Context
A closer look at auger boring and pipe ramming
Scope
Understanding auger boring and pipe ramming
Which auger boring and pipe ramming method fits the condition?
Guided or conventional auger boring rotates continuous-flight augers inside a steel casing while a cutting head advances from a reaction frame. It suits selected stable soils and crossings where spoil can move through the casing.
Pipe ramming uses pneumatic impact to drive an open-ended steel casing, after which the soil plug is removed; it can handle some cobbles and reduce face exposure but creates vibration. Neither method provides the face-pressure and steering control of microtunnelling. Selection follows grade tolerance, ground, groundwater, length, casing, obstruction, settlement, vibration, and pit access.
How We Deliver Auger Boring and Pipe Ramming
Step 1,
Step 2, We review the issued profile, geotechnical information, crossing agreement, utility records, casing schedule, and allowable settlement criteria before mobilization. Survey control establishes the entry and exit coordinates, invert, grade, and shaft limits. Existing utilities are located and daylighted, traffic and access controls are established, and launch and receiving excavations are built with the shoring and groundwater controls required by the soil conditions.
For auger boring, we set the boring machine on a rigid track, align the lead casing, rotate the auger train while advancing casing, and remove spoil without leaving an unsupported bore. For pipe ramming, a pneumatic hammer drives an open-ended steel casing through the ground, after which we remove the soil plug using the approved method. We survey progress, monitor the ground and adjacent assets, weld casing joints to the project procedure, install the carrier pipe on spacers, complete annular treatment where specified, and restore both shafts.
Step 3, The first casing section is treated as a critical control point because a small initial angular error grows over the drive. We independently check track position, lead casing elevation, and heading before committing production. Casing advance, spoil volume, jacking or ramming behaviour, groundwater, and monitoring readings are logged by drive interval.
Step 4, Harrowgate completes the crossing with surveyed casing and carrier, accepted welds and seals, carrier tests, annular treatment, monitoring, stable pit backfill, and restored surfaces.
Step 5, Harrowgate completes the crossing with surveyed casing and carrier, accepted welds and seals, carrier tests, annular treatment, monitoring, stable pit backfill, and restored surfaces.
Which materials and Ontario standards apply?
Auger boring and pipe ramming follow issued geotechnical, civil, structural, carrier, casing, shaft, welding, monitoring, OPSS where specified, and applicable local municipal requirements.
Casing material, wall, welds, joints, corrosion, carrier spacers, seals, vents, grout, and test requirements come from the accepted design. Working pits support equipment and installation reactions safely.
Groundwater, spoil, ground loss, vibration, settlement, utilities, traffic, and environmental streams are controlled through the approved procedure and response plan.
Acceptance includes casing and carrier survey, weld and installation records, carrier tests, annular and end details, monitoring, pit completion, compaction, and restoration.
Planning auger boring and pipe ramming? Talk it through with our team.
What Goes Wrong, and How We Prevent It
A trenchless crossing succeeds only when the installed casing reaches the receiving shaft within tolerance without unacceptable movement at the surface. Harrowgate controls the variables that produce deviation and settlement: shaft stability, setup accuracy, ground loss, groundwater, obstruction behaviour, casing integrity, and the relationship between advance and spoil removal.
The principal risks are loss of line or grade, surface heave or settlement, face loss, refusal on boulders, casing deformation, weld failure, uncontrolled groundwater, and contact with an unrecorded utility. We prevent drift by building a stable launch platform, checking the first casing section before full advance, and verifying survey control throughout the drive.
We match tooling and method to the geotechnical profile, control spoil removal so it does not exceed casing advance, and stop at defined trigger levels. Shafts are kept stable and dry enough for accurate setup. Utility crossings are exposed where required, and exclusion distances are maintained. Casing is inspected as each section is added. A documented response plan covers obstructions, deviation, water inflow, and monitoring movement before work starts.
Refusal is planned as a decision tree, not handled by simply increasing force. The crew records location and response, confirms casing condition and alignment, and applies the accepted obstruction procedure. This protects the casing from buckling and prevents uncontrolled excavation ahead of the face or an undocumented change in the crossing profile.
Have drawings for auger boring and pipe ramming? Send them over and we will scope it.
FAQ
Auger Boring and Pipe Ramming FAQ
What is the difference between auger boring and pipe ramming?
Auger boring rotates an auger inside advancing steel casing and removes spoil as the casing progresses. Pipe ramming uses percussion to drive an open-ended steel casing, then removes the soil plug. Harrowgate selects and executes the specified method based on diameter, length, ground, alignment tolerance, obstruction, and crossing-owner requirements.
How accurate is an auger-bored crossing?
Accuracy depends on drive length, casing diameter, soil, launch setup, steering provisions, and the tolerance shown on the engineered profile. Harrowgate establishes survey control, builds a rigid track, verifies the lead casing, and checks progress during the drive. The accepted line and grade are the contract values, not a generic tolerance.
What information is needed to quote a casing crossing?
Send the plan and profile, casing and carrier-pipe schedules, crossing length, geotechnical report, utility information, shaft limits, access constraints, traffic requirements, restoration limits, and crossing-owner specifications. Harrowgate checks the complete work area, including launch and receiving shafts, spoil handling, groundwater control, monitoring, tie-ins, and reinstatement.
How are existing utilities protected during boring or ramming?
Harrowgate coordinates valid locate information, checks records, daylighting requirements, crossing clearances, and owner restrictions before excavation or casing advance. Critical conflicts are exposed where required. Survey control, exclusion zones, monitoring, and a defined stop-work response remain active throughout the crossing, shaft construction, and final tie-in work.
Does trenchless casing eliminate excavation?
No. Auger boring and pipe ramming reduce excavation across the obstruction, but launch and receiving shafts, carrier-pipe tie-ins, and access still require planned excavation. Harrowgate performs shaft support, groundwater control, casing installation, tie-ins, backfill, pavement or landscape restoration, and closeout documentation as one coordinated scope.
How is settlement controlled beneath a road or rail corridor?
Settlement control starts with the engineered method, ground data, casing size, stable launch alignment, and disciplined spoil removal. Harrowgate avoids over-excavation ahead of casing, observes surface and asset monitoring points, records movement against action levels, controls groundwater, and pauses work when a trigger requires review before advance resumes.
Can Harrowgate complete the carrier pipe and restoration?
Yes. Harrowgate performs the crossing as a complete heavy-civil package, including shafts, steel casing, carrier-pipe installation, spacers, specified annular treatment, tie-ins, granular backfill, density testing, pavement, grading, and landscape restoration across the GTA and Ontario, with documented closeout records.
When is pipe ramming preferred over auger boring?
Ramming can suit selected crossings where an open-ended casing and percussive installation can pass variable ground or cobbles, while auger boring suits ground that can be excavated and conveyed predictably. Vibration, grade tolerance, groundwater, length, and obstructions govern selection.
Can auger boring steer around an underground utility?
Conventional auger boring has limited steering and should not rely on correction around a conflict. Utilities are located and daylighted as required, and the designed alignment preserves clearance before the drive starts.
Still have a question about auger boring and pipe ramming? Ask our team directly.
Our Work
View Our Projects See real projects across Toronto & Ontario
Commercial and heavy-civil construction delivered for developers, contractors, property managers, and municipalities.
Get a quote for auger boring and pipe ramming
Send drawings, a site plan, or a description of the scope. Harrowgate Group is licensed, insured, and WSIB-covered.
Licensed, Insured & WSIB-Covered, work managed and documented on every job
Send your project details
Tell us what you need and we’ll get you a quote. Licensed, insured & WSIB-covered · Free, no-obligation quote & on-site assessment.
Auger Boring and Pipe Ramming Across the GTA
View all service areas →Harrowgate Group provides auger boring and pipe ramming, delivered and installed with quote-ready support across Toronto and surrounding Ontario communities.
