A structured corrosion assessment and cathodic protection design program for approximately 5.0 km of critical steel forcemain infrastructure — identifying risks, confirming system effectiveness, and developing long-term mitigation strategies for the City of Whitehorse.
The City of Whitehorse engaged Avodahtec team to deliver a comprehensive corrosion assessment and cathodic protection design program for its critical sanitary forcemain infrastructure.
The project involves two buried steel forcemains totalling approximately 5.0 km: Forcemain #1 (2.2 km of 560 mm welded-steel from Lift Station #1 to Marwell Lift Station) and Forcemain #2 (2.6 km of 600 mm welded-steel from Marwell Lift Station to Old Whitehorse Lagoons).
The objective is to support the City’s long-term asset integrity management, regulatory compliance, and financial planning by identifying corrosion-related risks, confirming the effectiveness of existing cathodic protection systems, and developing practical CP and repair recommendations for this critical buried pipeline infrastructure.
560 mm welded-steel
Lift Station #1 → Marwell Lift Station
600 mm welded-steel
Marwell LS → Old Whitehorse Lagoons
Close-Interval Survey, ACVG, DCVG
Soil resistivity & CP field testing
60%, 95% & Issued for Tender packages
Drawings, specs & cost estimates
Buried steel forcemains are critical assets vulnerable to external corrosion, coating deterioration, cathodic protection deficiencies, and localized high-risk conditions that are difficult to identify without specialized investigation.
Assessing the condition and CP effectiveness of aging buried steel forcemains — including identifying corrosion-related deficiencies, high-priority risk locations, and developing long-term cathodic protection and repair designs.
Developing tender-ready CP design and conceptual repair plans for exposed sections — including coating, insulation, protective casing, river-level exposure, creek and culvert flow impacts, and structural protection considerations.
Avodahtec and Canchuks are delivering a structured corrosion assessment and cathodic protection design program:
Reviewed available drawings, background records, previous inspection information, cathodic protection system data, and asset documentation to establish baseline conditions and identify data gaps.
Developed and implemented indirect inspection surveys as part of the External Corrosion Direct Assessment process to identify areas of elevated corrosion risk along the buried steel forcemains.
Assessed the condition, coverage, and effectiveness of existing cathodic protection systems to determine whether the current systems are adequately mitigating corrosion risk.
Evaluated corrosion-related deficiencies, high-priority locations, and areas requiring intervention based on field data, CP system performance, pipeline condition, and asset criticality.
Developed long-term cathodic protection system design recommendations to reduce corrosion risk, improve asset integrity, and extend the service life of the forcemain.
Prepared conceptual repair recommendations for exposed sections, including coating, insulation, and protective casing considerations.
Prepared technical reporting, recommendations, and tender package materials to support future implementation of the cathodic protection and repair works.
The project combines corrosion assessment, CP system evaluation, and long-term design into one coordinated asset integrity program — delivered by a specialized multi-firm team.
ECDA inspections and CP assessments identify high-priority locations and support targeted intervention, maximizing the value of the City’s capital investment.
The CP design supports corrosion mitigation, improved service life, and reduced likelihood of future failures for critical wastewater forcemain infrastructure.
Conceptual repair designs consider coating, insulation, and protective casing requirements for exposed sections, providing the City with actionable, implementation-ready recommendations.
The project addresses challenges common to buried critical pipeline systems, including corrosion risk, CP effectiveness, regulatory compliance, and long-term financial planning.
Let’s explore how Avodahtec can protect your buried pipeline infrastructure.