Greater Sudbury Utility Locate Rules & Contractor Liability

Utilities and Infrastructure Ontario 4 Minutes Read · published May 24, 2026 Flag of Ontario

In Greater Sudbury, Ontario, contractors must follow municipal requirements and industry locate practices before excavating or working near buried utilities. This guide explains when to request locates, who enforces municipal rules, standard actions to reduce liability, and how to apply for road-occupancy or excavation permits.

When to request a locate

Before breaking ground for foundations, trenching, installing utilities, landscaping, or any work within a municipal right-of-way, contact the provincial one-call service to request utility locates at least a few days before work begins. Use the official notification process to ensure utilities mark their facilities and to document your due diligence. Ontario One Call[1]

Always document the locate ticket number and the date received.

Responsibilities and liability

Contractors are primarily responsible for verifying locates, maintaining safe dig practices, and complying with any municipal road or excavation permit conditions. Liability can arise from striking infrastructure, failing to follow marked locates, not obtaining required permits, or not following municipal orders to stop work.

  • Request a locate via the one-call service and retain the confirmation/ticket.
  • Follow marks and tolerance zones provided by utility owners; use safe digging methods.
  • Keep records of locates, permits, inspections, and communications for defence if liability arises.

Penalties & Enforcement

Enforcement of excavation, road occupancy and bylaw matters in Greater Sudbury is handled by the City of Greater Sudbury's enforcement and permitting services. Specific monetary fines and schedules for utility strikes or working without a permit are not specified on the cited city pages; contact the city for exact penalty schedules and enforcement procedures.[2]

  • Fines: not specified on the cited page; see local enforcement for amounts and per-day calculations.
  • Escalation: whether first, repeat or continuing offences carry higher penalties is not specified on the cited page.
  • Non-monetary sanctions: the city may issue stop-work orders, compliance orders, or require restoration and remediation; exact remedies are not specified on the cited page.
  • Enforcer: By-law Enforcement and the municipal permitting office handle inspections, orders and investigations; file complaints or request inspections through municipal channels.[2]
  • Appeals and review: specific time limits and appeal routes are not specified on the cited page; contact the city for appeal procedures and deadlines.
If a utility is damaged, immediately notify the utility owner and the one-call service and follow emergency procedures.

Applications & Forms

Common municipal applications related to excavation include road-occupancy or excavation permits. The city publishes application and permit requirements for work in the municipal right-of-way; fee schedules and submission details are available from the municipal permits page. For provincially coordinated locates, use the one-call service to request markings before work commences.[1][3]

  • Road occupancy / excavation permit: see the municipal permit page for application name, submission method and any listed fees.
  • Deadlines: apply early; where processing times are not listed on the cited page, contact permitting staff for lead times.
  • Submission: follow the municipal instructions for online or in-person submission and payment.

Action steps for contractors

  • Open a locate ticket with Ontario One Call before excavation work and keep the ticket number on site.[1]
  • Obtain any required road-occupancy or excavation permits from the city and meet permit conditions.[3]
  • Document compliance: photographs of marks, ticket confirmations, and communications with utility owners.
  • If enforcement or disputes arise, contact By-law Enforcement for inspection and follow official directions.[2]

FAQ

Do I always need to contact Ontario One Call before digging?
Yes; contractors should request locates before excavating to ensure buried utilities are marked and to document due diligence.[1]
What happens if I damage a utility line?
Immediately notify the utility owner, the one-call service, and the city if there is impact to municipal services; follow emergency procedures and preserve records for inspections.
Are there permits required for work in the road allowance?
Yes; road-occupancy or excavation permits are typically required for work within municipal rights-of-way — consult the municipal permits page for application details.[3]

How-To

  1. Plan work and identify any areas within municipal rights-of-way or near known utilities.
  2. Contact Ontario One Call to open a locate ticket and record the ticket number.[1]
  3. Apply for any required municipal permits (road occupancy, excavation) and comply with permit conditions.[3]
  4. Verify marks on site, use safe digging practices, and maintain the locate documentation.
  5. Record completion, notify utility owners if work affects services, and retain records for inspections.

Key Takeaways

  • Request locates through the provincial one-call service before any excavation.
  • Obtain municipal permits for work in road allowances and follow permit conditions.
  • Keep thorough records to reduce liability and support appeals or dispute resolution.

Help and Support / Resources


  1. [1] Ontario One Call - Request locates and ticket confirmation
  2. [2] City of Greater Sudbury - By-law Enforcement contact and procedures
  3. [3] City of Greater Sudbury - Road occupancy and excavation permits