Notice of study commencement for Ontario Street (Regional Road 42) from Linwell Road to Welland Avenue / Fourth Avenue (Regional Road 77)

Niagara Region, through their consultant Parsons Inc., has started a Municipal Class Environmental Assessment Study to examine rehabilitation and improvement needs for Ontario Street (Regional Road 42) in the City of St. Catharines.

The study will identify alternative solutions and design concepts in accordance with the Region’s Transportation Master Plan and consider the City of St. Catharines’ Ontario Street Corridor Secondary Plan Study.

The corridor recommendations will consider:

  • Traffic capacity and intersection improvements
  • Road safety
  • Pavement condition
  • Access management
  • Active transportation

The study area extends from Linwell Road to Welland Avenue / Fourth Avenue (Regional Road 77).


Niagara Region has planned this project according to Ontario’s Environmental Assessment Act, under Schedule ‘C’ of the Municipal Engineer’s Association’s Municipal Class Environmental Assessment (2023). The study will address Phases 1 to 4 of the Municipal Class Environmental Assessment process requirements.

The project team will examine a full range of alternatives and identify a preferred strategy for addressing the project needs.

When the study is complete, an Environmental Study Report will be prepared to document the planning and decision-making process which will be made available for a 30-day public review period. A Notice of Completion will be issued at that stage.

You're invited to participate

Engagement with the public, First Nations governments, Indigenous communities, regulatory agencies and other interested parties is important to the study.

To facilitate this, three Public Information Centres are planned over the course of the study to gather input on potential solutions and designs and to discuss concerns and issues with the project team.

Future Public Information Centre notices will be issued when details become available. 

Stay connected

As the study progresses, updates and information will be posted on the Ontario Street Environmental Assessment project page.

Contact one of the project team members if you have questions or comments, or to be added to the email list for receiving future notices about the study.

All comments submitted will become part of the study documentation.

Waad Siyam, M.Eng., C.E.T.
Project Manager, Transportation Planning
Niagara Region
905-980-6000 ext. 3728

Tauseef Shamsi, P.Eng.
Project Manager
Parsons Inc.

If you need accommodations for a disability to attend and participate in meetings or events, please let us know in advance so that arrangements can be made in a timely manner. Contact the Accessibility Advisory Coordinator at 905-980-6000 ext. 3252 or

Any personal information submitted will be collected, used and disclosed, where applicable, by members of Regional staff according to the Municipal Freedom of Information and Protection of Privacy Act. Any information you share will only be used for the intended purpose for which it was provided. For questions or comments about privacy practices, or learn more about the administration of the Municipal Freedom of Information and Protection of Privacy Act at Niagara Region.

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