Every year, construction activities across Calgary create situations where temporary covered ways-walkways, passages, or canopies built to protect the public and workers-become vital to site safety. When these structures are not properly designed, built, and maintained, the risk of catastrophic structural failure significantly increases, posing grave threats not only to crews but also to the general public passing nearby. As urban densification grows and both infill renovations and new builds become increasingly common, understanding the intricacies of protecting these covered ways is essential for homeowners, builders, and developers alike.

Understanding NBC Objective OS5.7: Mitigating Load-Related Risks on Covered Ways

The National Building Code (NBC) provides Canada’s baseline regulatory framework for construction safety, ensuring that all buildings and associated temporary structures meet or exceed minimum standards of stability, protection, and public welfare. Objective OS5.7 is a critical clause in this landscape-it specifically addresses risks that arise when loads placed on covered ways (such as sidewalk sheds, hoardings, and overhead protection) surpass their bearing capacity. This regulation is not limited to active construction; it covers any building site-including those under repair, renovation, or even incomplete and abandoned projects-where temporary covered ways are used to shield passersby and site occupants from falling debris, tools, or equipment.

Intent and Scope of NBC OS5.7

The main aim of OS5.7 is to prevent structural failure of covered ways. Any such collapse can result in injury, fatality, or costly property damage. Loads may originate from many sources, including:

  • Falling construction debris (e.g., concrete, brick, steel)
  • Placement or storage of building materials/equipment atop the covered way
  • Live loads generated by workers or unforeseen use
  • Snow accumulation, wind uplift, or vibrational impact

Calgary’s fluctuating weather, and urban traffic density, mean that covered ways not only shield commuters and pedestrians from overhead hazards but must also resist unique loads and stresses. NBC OS5.7 requires all parties managing a construction or demolition project to proactively assess, monitor, and mitigate any risk of overloading these structures to safeguard life and property.

Legal and Regulatory Baseline: OS5.7 and Calgary’s Specific Requirements

While the NBC provides a unified national standard, provincial and municipal authorities-such as the City of Calgary-enforce expanded and locally specific permit procedures, application requirements, and oversight mechanisms for public protection and infrastructural harmony. Failure to comply with these requirements can lead to project shutdowns, fines, and legal liabilities.

Key Requirements of NBC OS5.7 in Practice

  • Covered ways must be engineered to support all expected loads, including incidental and accidental loading.
  • All materials used must exhibit sufficient strength, resistance to moisture, and durability for the duration of use.
  • Any change in the load profile-such as stacking new materials or introducing heavy equipment-necessitates re-assessment.
  • Regular inspections are critical, especially after significant weather events, structural modification, or prolonged use.
  • Visible warning systems (signage, lighting, barriers) must remain intact and legible at all times.

OS5.7 is not merely about building structurally safe covered ways-its spirit is prevention. Each permit, inspection, and compliance step is intended to eliminate the possibility that load exceedance becomes a root cause of injury or intrusion into the public realm.

Permit Requirements in Calgary: Navigating City Regulations for Covered Ways

Calgary enforces a dual permit structure for temporary covered ways and construction occupancy of public spaces. Two primary permits are required: the Hoarding Permit and the Street Use Permit. These permits are not optional-regardless of whether you are a homeowner undertaking a major renovation, a builder erecting a multi-family development, or a developer managing a high-rise demolition, these permits must be secured in advance and displayed prominently on-site.

When is a Hoarding Permit Required?

A Hoarding Permit is mandatory if your project:

  • Requires access to, or occupation of, any City-owned right-of-way (sidewalks, boulevards, lanes) for construction staging or pedestrian protection
  • Closes or restricts use of City right-of-way for more than 24 hours
  • Coincides with peak pedestrian or vehicle traffic hours (6-9 a.m. and/or 3-6 p.m., Monday to Friday)
  • Establishes any covered way or overhead structure that is outside your private property boundary

Not obtaining a hoarding permit can not only stall your project due to enforcement action, but can also expose you to civil liability if an incident occurs.

Street Use Permit: When is it Needed?

The Street Use Permit expands coverage to any exclusive use of municipal road right-of-way for materials storage, construction activities or heavy equipment access. This permit applies if you:

  • Place tools, debris, or materials on City property, even temporarily
  • Unload/load heavy machinery or building components in a travel lane, alley, or boulevard
  • Use cranes, concrete pumps, excavation, or demolition equipment that impinges on public right-of-way
  • Block or restrict any traffic lane, public sidewalk, or shared-use path, regardless of project type or size

Both permits often intersect-most projects with significant demolition, excavation, or new building footprints near the public realm necessitate both forms of approval to ensure overlapping risks (especially structural load safety) are addressed holistically.

The Importance of Non-Compliance Awareness

Calgary’s Enforcement division regularly inspects construction sites for permit compliance. Fines, stop-work orders, or forced removal of unapproved covered ways are routine remedies for non-compliance. In the aftermath of incidents, insurance, legal claims, and public scrutiny frequently hinge on evidence of regulatory diligence, underscoring the importance of following protocol from day one.

Application Process: Navigating Permit Acquisition and Timelines

Homeowners, builders, and developers are sometimes surprised by how far in advance permits must be organized. The process is sequential:

  1. Assess project needs, timeline, and anticipated right-of-way requirements
    • Identify the scope and scale of covered ways, expected construction/demolition activities, and public interface
  2. Prepare detailed plans and support documentation
    • These may include stamped engineering drawings, site safety plans, load calculations, and proposed public detour or safety solutions
  3. Create a myID business account with the City of Calgary
    • This is the gateway for online permit applications and ongoing communication with permitting officials
  4. Submit the Hoarding Permit and/or Street Use Permit application as required
  5. Allow for adequate review time
  6. Address requests for further information or potential permit conditions (such as scheduled city inspections or notification of neighboring business/residences)
  7. Display approved permit(s) on site, commence construction, and maintain ongoing compliance

Specific Permit Timelines

  • Hoarding Permit: Allow a minimum of 10-15 days for basic review. Complex or high-traffic projects may take longer, especially if additional coordination is required with City planners, utility companies, or community stakeholders.
  • Street Use Permit: Timeline varies according to closure impact, ranging from 5-15 working days:
    • High-impact closures: Apply a minimum of 15 days in advance
    • Moderate-impact closures: Minimum 10 days
    • Low-impact closures: Minimum 5 days

Delays in planning or application submission may lead to project slowdowns, rescheduling, or increased costs, especially if emergency work-arounds or off-hour construction scheduling become necessary.

Costs Associated with Permitting: Budgeting for Safety and Compliance

Proper budgeting is a fundamental aspect of responsible project planning-permit costs in Calgary reflect not only administrative overhead but also the City’s investment in maintaining safe public spaces. Both permit classes entail base rates and additional fees that scale with project size, duration, and the nature of public space impacted.

Hoarding Permit Fee Structure

Fees for hoarding permits are calculated per linear meter and square meter per week, reflecting the length and footprint of covered ways as well as their location’s sensitivity within the city’s pedestrian network.

  • Sidewalk or Boulevard: $6.30 per linear meter per week, plus $1.30 per square meter per week
  • Sidewalk within Priority Pedestrian Zones (e.g., downtown core): $18.80 per linear meter per week, plus $3.70 per square meter per week
  • Lane Closure, Minor Street: $6.30 per linear meter per week, plus $2.60 per square meter per week
  • Lane Closure, Major Street: $12.60 per linear meter per week, plus $5.05 per square meter per week

It is important to accurately map out your required hoarding zones in advance. Underestimation can result in punitive fines for over-use or late payment; overestimation needlessly inflates project costs.

Street Use Permit Fee Structure

  • Base application fee: $31.50 per day of permit (duration-based, reflects continuous or intermittent use)
  • Planning/co-ordination fees: $158.05 per hour (if City traffic engineers, special utility locates, or other resources are needed)
  • Site inspection fees: Vary according to circumstances; inspections may be mandatory before and after covered way installation and site removal

All permit costs are payable in advance, and requests for refunds or changes are subject to City guidelines. Begin the budgeting process early, as unanticipated costs here can ripple down to overall project profitability and scheduling.

Design and Construction Best Practices: Building Covered Ways That Last

Crafting a covered way able to resist both ordinary and extraordinary loads is a specialized endeavor, calling on engineering expertise, quality materials, and thorough planning. Even for small-scale home renovations adjacent to public sidewalks, structural integrity is legally- and morally- non-negotiable. Here are best practices that responsible homeowners, builders, and developers should embrace:

Comprehensive Site Assessment

Prior to construction or demolition, conduct a targeted hazard assessment:

  • Identify risks posed by site operations (demolition, high-rise work, material hoisting)
  • Model worst-case load scenarios based on all anticipated activities
  • Include environmental exposure (wind, snow, water egress, freeze-thaw cycles) in calculations

Structural Design by Qualified Professionals

  • Ensure designs and plans for covered ways are completed and, where needed, stamped by a professional engineer licensed in Alberta
  • Calculate all dead and live loads, applying appropriate safety factors per NBC and City of Calgary standards
  • Account for dynamic loads such as movement of workers, incidental impacts, and temporary storage by trades during the project

Material Selection

  • Use only code-compliant timber, steel, or composite structural members
  • Ensure fasteners (bolts, anchors, nails) are corrosion-resistant and appropriately rated
  • Utilize moisture-resistant sheathing or flooring for overhead walkways and ramps
  • Consider anti-slip surfaces and drainage features where foot traffic is anticipated

Construction and Installation

  • Follow engineering drawings and manufacturer specs exactly-don’t substitute materials or “make-do” in field conditions where loads are critical
  • Involve qualified installers who understand load paths and potential construction hazards
  • Schedule municipal inspection prior to use, and respond rapidly to City feedback

Regular Inspection and Documentation

  • Conduct daily visual inspections for superficial damage or sagging
  • Inspect for hidden problems (e.g., water ingress, fastener looseness, accumulating debris) weekly
  • Document inspections, repairs, and modifications for due diligence and potential review by City or insurance agents
  • If any structural compromise or near-miss is observed, restrict access and initiate immediate review by a structural engineer

Maintenance and Ongoing Risk Management

Proper maintenance is not simply a matter of regulatory compliance-it’s a continuous duty of care, essential for accident prevention and maintaining stakeholder trust throughout project duration.

Routine Maintenance Procedures

  • Remove ice, snow, or pooling water promptly-each adds substantial dynamic and dead weight, risking overload
  • Keep all signage, lighting, and wayfinding features clean, legible, and illuminated (especially crucial in Calgary’s extended winter nights)
  • Tighten fasteners and replace worn, split, or corroded structural components as soon as degradation is noted
  • Clear all walkable surfaces of debris, tools, or equipment after every shift

Responsive Risk Management

  • Halt work and re-assess after severe windstorms, heavy precipitation, or road incidents impacting covered way foundations
  • Access and egress for emergency services must remain unobstructed at all times-confirm this in daily checks
  • Immediately implement detour or alternate protection measures if covered ways are temporarily compromised for any reason
  • Maintain a log of all maintenance, incidents, repairs, and responses as part of site safety documentation

Enhancing Public Safety: Practical Solutions and Preventative Protocols

The core of OS5.7 and Calgary’s municipal permitting isn’t just legal-it’s about proactive, tangible protection for people and property that rely on safe passage through, around, or under active construction. Every project should incorporate additional practical measures:

Clear and Effective Signage

  • Post prominent warnings at every covered way entrance, indicating construction hazards, detour pathways, and contact information for site safety representatives
  • Signage should be multi-lingual and symbol-driven wherever possible for universal comprehension
  • Temporary wayfinding maps should clarify safe travel paths, especially during multi-phase projects or evolving closures

Adequate Lighting and Visibility

  • Install upward and downward lighting inside covered ways to eliminate shadowed or blind spots
  • Use high-visibility barriers or railings to define safe passage and project boundaries both day and night
  • Regularly check that all lighting remains functional; promptly replace burnt-out bulbs or failing fixtures

Pedestrian and Cyclist Accommodation

  • Provide separated path options for cyclists, stroller-users, and those with disabilities. Covered ways must meet accessibility codes and maintain continuity with city streetscapes wherever reasonable
  • Avoid abrupt ramps, steps, or narrowed clearances that can create tripping hazards or accessibility barriers
  • Schedule intermittent closures during low-traffic hours whenever possible to minimize impact

Periodic Public Notification

  • Notify adjacent property owners, local businesses, and residents before starting major works that alter pedestrian or vehicular flows
  • Share updates via posted bulletins, emails to business improvement associations, or direct mail for extended-closure projects
  • Respond to public feedback or incident reports proactively, adjusting safety measures if hazards are identified

Coordination with Emergency and Utility Services

Overlooked utility lines, emergency vehicle routes, and non-construction traffic flow are frequent causes of delay and risk in Calgary projects. Effective project management builds in:

  • Utility Locates and Shutdown Schedules: Coordinate with ENMAX, Atco Gas, and other providers well in advance of project mobilization. Avoid placing covered ways atop known access points unless temporarily rerouted.
  • Fire Department Review: For larger projects (especially demolition or high-rise work), City of Calgary Fire Department review of the site’s fire safety plan is required. Integrate access/egress corridors for emergency crews within your temporary structure layout.
  • Traffic Management Plan: For any covered way impacting busy streets, include traffic flow modeling and site access points to reduce the chance of vehicular-pedestrian conflict.

Integration with Fire Safety Planning

Calgary requires fire safety plans in line with the National Fire Code (Alberta edition) for construction, demolition, and major renovation projects. Your plan should address:

  • Identification of potential fire hazards on or under covered ways
  • Locations of all fire extinguishers, emergency exits, and first aid facilities serving both site and public areas
  • Emergency response protocol, evacuation plans, and on-site communications for all workers
  • Coordination with Calgary Fire Department and timely plan updates as construction phases change
  • Storage and use of flammable materials near covered ways

Case Examples: Common Pitfalls and Solutions in Calgary

Scenario 1: Underestimating Load Due to Material Storage

In a downtown Calgary mid-rise renovation, contractors frequently use covered ways as storage platforms for drywall, bricks, or heavy equipment overnight. This practice can quickly double or triple the intended design load. Failure to recalculate load capacity and reinforce structures has in the past led to catastrophic failure elsewhere in North America. Solution: strictly prohibit material storage atop covered ways unless engineered and permitted for the maximum anticipated load, with daily checks by a competent person.

Scenario 2: Delayed Permit Application Stalling Construction

A residential builder near Bridgeland underestimated how long the City would take to issue a hoarding and street use permit before site hoarding and temporary walkway erection. The resulting three-week project delay affected their lender’s draw schedule and extended their equipment rental. Solution: Start the permit process 3-4 weeks in advance, build contingency into schedule milestones, and maintain alternate plans for worker safety if last-minute changes demand modifications to covered way design or placement.

Scenario 3: Snow Load Failure Due to Neglected Maintenance

During a winter infill construction project, a previously adequate covered way became overloaded due to repeated heavy snowfalls atop the plywood roof. Inadequate shoveling and delayed maintenance led to severe sagging. The City’s safety inspector halted the project, and emergency shoring was required. Solution: Develop and assign a daily winter maintenance plan that includes snow and ice removal, with assigned personnel accountable for documentation. Consider designing covered ways with greater pitch to shed snow or integrate snow-melting features depending on duration and forecasted weather.

Scenario 4: Insufficient Public Notification and Resulting Complaints

In a mixed-use streetscape renovation, multiple covered ways rerouted both pedestrian and cycling traffic. Lack of clear signage and notification resulted in pedestrian confusion, trespass on the project site, and several near miss incidents. Solution: Incorporate robust multi-channel public notification, including temporary apps, maps, and visible wayfinding, into the permit and safety plan to anticipate and quickly respond to public navigation challenges.

Key Takeaways for Homeowners, Builders, and Developers

Whatever the scale or scope of your Calgary construction or demolition project, ensuring safety from loads bearing on covered ways is a non-negotiable responsibility. The following principles form the foundation of effective project execution:

  • Enable early-stage project planning with a clear timeline for permit acquisition. Delays or errors at this stage threaten both legal compliance and site progress.
  • Invest in quality engineering and stress-testing of covered way structures. Always size up rather than down in load capacity, and address new hazards as site conditions evolve.
  • Operationalize regular inspection and preventative maintenance protocols-both daily quick-checks and periodic, detailed engineering reviews-to spot and address nascent hazards.
  • Budget accurately for all permit costs, engineering services, material contingencies, and city-imposed maintenance or inspection fees. Build financial flexibility into your project in the event of weather or site changes.
  • Engage your crews, site managers, and public safety liaisons in ongoing safety culture and responsive communication with external stakeholders, including neighboring businesses, residents, and city enforcement.
  • Integrate safety with fire, emergency, and traffic management protocols to build a thoroughly compliant, community-friendly project from start to finish.

Summary and Ongoing Compliance

In Calgary, the risks to public safety from inadequately designed, constructed, or maintained covered ways are real and consequential. NBC Objective OS5.7 and the City of Calgary’s bylaw and permitting framework provide a tested roadmap-one that demands diligence, foresight, and unwavering accountability from every homeowner, builder, and developer. The key to success lies not only in meeting the minimum legal and engineering standards, but in exceeding them through a commitment to transparent communication, professional expertise, and daily operational discipline.

Staying organized throughout the life of your project-by maintaining a comprehensive permit record, detailed safety logs, and robust inspection documentation-will ensure that safety from excessive bearing loads remains a priority from planning, through execution, to project completion. In Calgary’s dynamic building environment, this diligence not only protects people and property, but reinforces your reputation as a professional committed to the highest standards of public safety and regulatory compliance.

For expert guidance on demolition, excavation, and site safety, trust Kingsway Demolition & Excavation-Calgary’s reliable partner in safe, code-compliant site preparation.