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MTE Consultants Acquires RIZZ Engineering, Strengthening Expertise in Structural Design and Precast Concrete

Ament Line & Herrgott Road Roundabout
Transportation

Region of Waterloo Ament Line & Herrgott Road Roundabout

Partners

Region of Waterloo

Key personnel

Trevor McNeil, O.L.S., O.L.I.P.

Project overview

After many collisions occurred at the intersection of Ament Line and Herrgott Road in Wellesley Township, the Region of Waterloo retained MTE to provide a long-term, effective solution. Despite its low-speed limit and relatively light rural traffic, the intersection had become a point of deep concern for the local community due to a persistent collision rate. The intersection was originally controlled by a two-way stop, with stop signs on Ament Line in both directions and right-of-way granted to Herrgott Road. Attempts to improve safety—including overhead flashing lights, rumble strips, oversized stop signs, and a speed limit reduction—were ultimately unsuccessful, leading to a community-led petition for the construction of a roundabout.

MTE's Involvement

MTE provided surveying and civil engineering services to develop a comprehensive solution aimed at improving roadway safety at this intersection.

MTE’s involvement began with consulting services related to the preliminary and detailed design, topographical and legal surveys, stakeholder consultation, and preparation of an Environmental Compliance Approval. Our team also provided tender support, followed by contract administration and inspection services during construction. To facilitate the work, the intersection was fully closed for approximately three months, during which the project was delivered on time and under budget.

The new roundabout was designed using MTE’s experience in roundabout geometry, with a focus on improving driver sightlines and reducing vehicle speeds at the point of entry. This design approach is proven to reduce the severity of collisions—transforming what could be head-on or high-speed accidents into low-speed, minor incidents, thereby dramatically improving public safety.

To enhance visibility and safety further, our design included the installation of street lighting and the significant lowering of the roadway grade to improve sightlines. This required close coordination with Bell Canada, as surrounding telecom infrastructure also had to be lowered. MTE also worked with the local hydro provider and Union Gas to relocate utilities, ensuring minimal disruption to existing operations.

In addition to roadway safety enhancements, MTE designed new storm sewers, roadway, curb and gutter, and a multi-use trail to support a more inclusive and efficient transportation corridor. The new stormwater system routes runoff to the existing roadside ditches, improving drainage for adjacent farmland. In consideration of local rural traffic—including horse-drawn vehicles—our design incorporated exposed aggregate rollover curbs, which offer a safer and more comfortable surface for horses to walk on.

This project demonstrates the value of thoughtful, community-responsive engineering. With its modern roundabout design, this once-dangerous intersection has been transformed into a safe and efficient crossing, offering peace of mind to residents and a significant step forward for rural road safety in the Region of Waterloo.