Location
Fort McMurray, Alberta
Expertise
Infrastructure
Pipelines
Wastewater Collection & Storage
Share
Design and construction of the Gregoire Sanitary Sewer project in Fort McMurray posed significant risks and challenges.
The continuous, 1.6 kilometre, 600 millimetre diameter, dual sanitary sewer system traversed a business area, soccer field, children’s play park, a busy roadway, and Highway 63—a major highway and the only transportation link to the oil sands development north of Fort McMurray. The sewer alignment included significant environmental and geological constraints.
Associated Engineering worked closely with the Municipality to develop a design and construction methodology employing horizontal directional drilling, a trenchless construction technique. Using trenchless construction, the sewer was installed in varying and steep terrain through an environmentally sensitive valley, over 50 metres deep, to avoid an actively sliding slope and protected waterway. Using this technical approach for such a long sewer over varying and complex terrain and to such significant depths was an innovative application of this technology.
The design and construction of the Gregoire Sanitary Sewer demonstrates the suitability of horizontal directional drilling for installing a long pipeline through varying and deep terrain to minimize impact on the environment, reduce construction risk, and reduce impact on the public.
![Map Image](https://www.ae.ca/wp-content/themes/ae/images/maps/Alberta.png)
![Blue Section](https://www.ae.ca/wp-content/themes/ae/images/blue_section.png)
Project Highlights
People on this project
More Infrastructure Projects
See all projects
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/north-wall-sewage-treatment-plant-and-main-lift-station-upgrade-tn.jpg)
Buildings
North Wall Sewage Treatment Plant and Main Lift Station Upgrade
![Project Image](https://www.ae.ca/wp-content/uploads/2023/08/NIX2397-copy.jpg)
Transportation
Bellevue Creek Bridge
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/img_rockymountainhouse_banner-mobile.jpg)
Downtown and Main Street Revitalization
Rocky Mountain House Main Street Reconstruction
![Project Image](https://www.ae.ca/wp-content/uploads/2023/07/tsawwassen-sewage-tn.jpg)
Infrastructure
Tsawwassen First Nation Sewage Treatment Plant
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/municipal-incentives-to-attract-downtown-investment-tn.jpg)
Infrastructure
Municipal Incentives to Attract Downtown Investment
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/emergency-flood-damage-reduction-program-tn.jpg)
Climate Change Adaptation & Mitigation
Emergency Flood Damage Reduction Program
![Project Image](https://www.ae.ca/wp-content/uploads/2024/01/highway-17-country-road-thumbnail.jpg)
Transportation
Highway 17 at County Road 508 Interchange
![Project Image](https://www.ae.ca/wp-content/uploads/2023/08/NIX_2320.jpg)
Streetscaping
Langford Cultural District
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/37-street-sw-storm-trunk-relocation-t.jpg)
Environmental
37 Street SW Storm Trunk Relocation
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/img_buffalo_creek_culvert_replacement_07.jpg)
Infrastructure
Buffalo Creek Culvert Replacement
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/oakville-fourth-line-closed-landfill-tn.jpg)
Infrastructure
Oakville Fourth Line Closed Landfill
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/thumbnail2525aa391b316d6b9fc9ff00001037d2.jpg)
Infrastructure
Tłı̨chǫ All-Season Road – Financial Advisory Services
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/sk-pdap-tn.jpg)
Infrastructure
Provincial Disaster Assistance Program
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/tlicho-cultural-commons-digital-database-thumb.jpg)
Environmental
Tlichǫ Cultural Commons Digital Database
![Project Image](https://www.ae.ca/wp-content/uploads/2023/06/asquith-landfill-decommissioning-tn.jpg)
Containment Systems
Asquith Landfill Decomissioning
LEADERSHIP INSIGHTS
See all insights
![](https://www.ae.ca/wp-content/uploads/2024/07/siksika-1-900.jpg)
![](https://www.ae.ca/wp-content/uploads/2024/07/tachet-1.jpg)
![](https://www.ae.ca/wp-content/uploads/2024/04/trestle-1.jpg)