Post-construction inspection of municipal infrastructure is a mandatory step governed by the Bureau de normalisation du Québec (BNQ) to ensure compliance, durability, and safety of completed works. Once construction is finished, this inspection verifies that infrastructures—such as sanitary and stormwater systems—adhere to current standards and contractual requirements.
With our recognized expertise and the use of our specialized inspection cameras, we can detect any anomalies, identify potential construction defects, and ensure the optimal commissioning of infrastructures.
1- Specifics of post-construction infrastructure inspection by camera
2- What is inspected?
3- Our tools – ZIPCAM 360
4- Validation of water network post-construction
5- Standards, reports, and additional documentation
6- Contact
Specifics of post-construction infrastructure inspection by camera
Firstly, unlike a preventive infrastructure inspection by camera, it is mandatory to clean the pipes before a post-construction inspection. We use a vacuum truck equipped with a high-pressure cleaning nozzle to ensure effective and tailored cleaning for the specific needs of each network. With our patented inspection tools, we can perform both cleaning and inspection in a single operation.
Next, the BNQ requires 2 separate inspections after the construction of infrastructure:
- Provisional Inspection
Conducted in the same year the construction is completed, usually before the paving stage on site, the provisional inspection allows for an initial validation of the compliance of constructed infrastructures. - Definitive or Final Inspection
Carried out after paving, the definitive inspection takes place following a freeze/thaw cycle, between 8 and 12 months after the initial inspection, to detect any issues that may arise due to changes in ground conditions.
Finally, unlike a traditional inspection, the post-construction inspection report must be validated with the seal of a water engineer, a member of the Ordre des ingénieurs du Québec (OIQ).
What is inspected?
Manhole inspection
Verification of manhole compliance, especially during the provisional inspection.
Ovality testing of pipes
Ovality testing ensures that soil compaction has not compromised the structural integrity of the pipes. The BNQ allows a tolerance of 5% deformation of the pipes during the first (provisional) inspection and 7.5% during the definitive inspection.
Pipe inspection
Allows for the identification of structural and operational defects in sanitary and stormwater pipes. For more information, please visit our sewer inspection by camera page.
Our tools
By choosing Can-Explore for your sewer inspection and cleaning needs, you benefit from advanced technologies and unmatched expertise, ensuring the reliability and efficiency of your infrastructure:
ZIPCAM 360
The ZIPCAM 360 from Can-Explore represents a true breakthrough in sewer network inspection. This innovation allows for the combination of cleaning and inspection into a single operation, effectively halving the time required for these interventions.
Result: reduced traffic disruptions that minimize inconvenience for citizens by allowing for a quicker resumption of urban activities and a significant reduction in labor costs.
Discover the unmatched performance of the ZIPCAM 360 by visiting our website, or contact us for more details.
Post-construction water network validation
Post-construction inspection of water networks is also subject to BNQ standards and ensures the integrity of new potable water pipes before they are put into service. This evaluation allows for the detection of any potential anomalies and ensures the absence of leaks that could compromise the performance and durability of these infrastructures.
With our expertise in water engineering and the use of the most advanced technologies in the infrastructure sector, Can-Explore ensures a smooth transition between the construction phase and the sustainable operation of municipal water networks.
Post-construction water network validation in steps
1. Network cleaning
The first step involves opening fire hydrants to allow water to flow through the network. This process helps remove any debris or potential contaminants that may have accumulated during construction and ensures that no leaks are present in the system (flow meter).
2. Network chlorination
Chlorine is introduced into the network and circulated for a specified period. This step disinfects the water network.
3. Sampling and water quality control
Once chlorination is complete, water samples are taken to analyze residual chlorine levels and verify overall water quality. These tests confirm that the water meets safety and sanitation standards before the network’s final commissioning.
Standards, reports, and additional documentation
Standards and reports
Our infrastructure inspections are certified according to the Pipeline Assessment and Certification Program (PACP) of the National Association of Sewer Service Companies (NASSCO). They comply with standards set by the Bureau de normalisation du Québec (BNQ), including BNQ 1809-300 et BNQ 3680-125, and adhere to the protocols of the Guide to Developing an Intervention Plan for the Renewal of Drinking Water, Sewer Pipes, and Roadways du Ministère des Affaires municipales et de l’Habitation (MAMH).
With our license from the Régie du bâtiment du Québec (R.B.Q.) as a Entrepreneur général, 1.4 Routes et canalisations (number: 5718-4566-01), Can-Explore is also qualified to act as a construction contractor by submitting bids, executing, and/or having construction work executed for others.
Reports issued by our water engineers, members of the Ordre des ingénieurs du Québec (OIQ), are generated following the inspection work according to established standards. They provide an accurate depiction of the functional and structural state of the sewer network and make recommendations for corrective work. Can-Explore utilizes the innovative solutions developed by Can-Ex Technologies, which, among other things, allow us to produce reports that meet the highest North American standards in the industry.
Additional documentation - Useful links and downloads
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