MASTERPIECE 2025:Civil Other

Civil Other

Guideline ACT

Molonglo Valley Interceptor Sewer MVIS Odour Mitigation Project Design Construct

Guideline ACT’s project for the Molonglo Valley Residential Development addressed concerns about odour emissions from ventilation structures, with new homes being built nearby. To address this, Guideline ACT replaced the existing ventilation structures with advanced Odour Control Units (OCUs), which use fanforced extraction to manage odour emissions while maintaining the sewer’s integrity. The implementation of these high-efficiency filtration systems has significantly improved air quality for residents while protecting critical sewer infrastructure from potential corrosion. During construction, the Guideline team faced technical challenges arising from unforeseen infrastructure issues and ground conditions. They tackled these by actively collaborating with stakeholders to combat negative outcomes. The judges called the overall level of design and construction as ‘exceptional’, and ‘an outstanding project in every respect’, noting that the project sets a new standard for odour mitigation in urban settings.