Alton Village Environmental Assessment

Town Hall building

Update (February 15, 2022)

The Town of Caledon has completed a Municipal Class Environmental Assessment Study for the reconstruction of Main Street North and Queen Street West in the Village of Alton. The study considered the road improvement to enhance connectivity and visitor accessibility to the Alton Village area.  

The project was completed in accordance with Schedule ‘C’ of the Municipal Class Environmental Assessment (October 2000, as amended in 2007, 2011 & 2015). 

An Environmental Study Report (ESR) documenting the planning process undertaken, details of the study recommendations as well as potential impacts and mitigation measures, has been completed and by this Notice is being placed in the public record for review. 

The ESR is available for review for 30 days until March 19, 2022.

Due to the ongoing COVID-19 pandemic and associated restrictions on public gatherings, and in the interest of public health, the ESR will not be made available for review at Town Hall.  Alternative formats including hard copies can be made available upon request.

Interested persons may provide written comments to the project team by March 19, 2022.  All comments and concerns should be sent directly to the Project Managers listed below.

In addition, a request may be made to the Ministry of the Environment, Conservation and Parks for an order requiring a higher level of study (i.e. requiring an individual/comprehensive EA approval before being able to proceed), or that conditions be imposed (e.g. require further studies), only on the grounds that the requested order may prevent, mitigate or remedy adverse impacts on constitutionally protected Aboriginal and treaty rights. Requests on other grounds will not be considered.  Requests should include the requester contact information and full name for the ministry. 

Requests should specify what kind of order is being requested (request for additional conditions or a request for an individual/comprehensive environmental assessment), how an order may prevent, mitigate or remedy those potential adverse impacts, and any information in support of the statements in the request. This will ensure that the ministry is able to efficiently begin reviewing the request.

The request should be sent in writing or by email to:

Minister of the Environment, Conservation and Parks
Ministry of Environment, Conservation and Parks
777 Bay Street, 5th Floor
Toronto, ON M7A 2J3


Director, Environmental Assessment Branch
Ministry of Environment, Conservation and Parks
135 St. Clair Ave. W, 1st Floor
Toronto, ON M4V 1P5

Materials for review 


Update (August 27, 2020)

The Corporation of the Town of Caledon is currently undertaking a Class Environmental Assessment for the reconstruction of Main Street North and Queen Street West in the Village of Alton.

The purpose of the study is to develop a road design that enhances connectivity and visitor accessibility to the Alton Village area. In identifying improvements to the corridor, the study is considering technical, aesthetic, and structural requirements; as well as socio-economic, cultural heritage, and natural environment factors.

The project is being undertaken in accordance with Schedule ‘C’ of the Municipal Class Environmental Assessment (October 2000, as amended in 2007, 2011 & 2015).

Given the ongoing COVID-19 pandemic, associated restrictions on public gatherings, and in the interest of public health, all display materials for the second of two Public Information Centres (PIC) are available online only. The intent of the display materials is to share information on the identification and evaluation of alternative design options and to receive input from the public on the preferred design solution.

Materials for review:

If you would like more information on the project, require a hard copy of the online materials, or to be included on the mailing list for this project, please contact one of the following members of the Project Team listed on the Public Notice No. 2 attachment.


EA Planning & Design Process
What does the Environmental Assessment (EA) Study consider? 

The EA considers the broad definition of the environment including impacts to the social, cultural, 
economic, and natural environments. The Alton Village Class EA Study considered options to enhance 
connectivity and visitor accessibility to the Alton Village area. 
In identifying the road improvements, the study considered technical (storm water and roadway 
operations and geometrics), aesthetic (streetscaping), and structural requirements; as well as socio-economic;
cultural heritage, and natural environment factors.

What is a Schedule C Project? 

Schedule C projects involve the construction of new facilities and major expansions to existing facilities. 
These projects must go through the entire EA planning process (Phases 1-4)

 How will my comments be incorporated into the study? 
Comments received will be reviewed for consideration in confirming the recommended design 


Is the design already completed? 

No. The preliminary corridor design is under development, and will include the design concepts 
presented today, after being confirmed following review of the comments submitted at this PIC.

How can I continue to be involved in the study?  
Join the public mailing list, contact a member of the project team, and/or complete a comment sheet. 
When is the road reconstruction anticipated to commence 

The implementation of the study recommendations are tentatively planned for 2022, subject to Town 
Council approval and utility relocations

What happens following the EA Study?  

Following completion of the Class EA Study, the project will proceed to Phase 5 ~ Detailed Design and 

What are my options if I don't agree with the Town's recommendations?  

Anyone with concerns related to any aspect of the study may express such concerns in writing to the 
Project Manager at the Town of Caledon within the 30-calendar day review period following the Notice 
of Study Completion. If concerns cannot be resolved through discussions with the Town, then a 'Part II 
Order' (a provision in the MCEA to request a higher level of assessment of the project) may be 
requested. A request may be made to the Minister of Environment, Conservation and Parks within the 
30-day calendar review period requesting an Individual Environmental Assessment in accordance with 
the Environmental Assessment Act.

What is the cost of the recommended design?  

We estimate the cost to implement the preferred design concepts presented today to be approximately 
$14 million. This is a rough estimate based on information available at this time.

Transportation and Property Impacts
Will the recommended traffic calming measures be effective in reducing vehicle speeds?  

It is anticipated that expanding the urban cross-section to the currently rural roadways will result in 
reducing vehicle speeds approaching the village area. Following the implementation of the preferred 
design, the Town will monitor traffic speeds to determine the effectiveness of the recommended traffic 
calming measures

Will there only be on-street parking at Main Street north of the bridge? 

Yes. The provision of additional on-street parking beyond the east side of Main Street between Queen 
Street and Mary Street is not feasible due to the narrow corridor.

Will my property be impacted?  

Attempts were made to mitigate impacts to adjacent properties during the development of the preferred 
design. Where impacts are unavoidable, lands disturbed during construction would be repaired to their 
existing condition

What happens if my property is damaged during construction? 
Any lands disturbed as a result of construction would be restored to their current state.  
Will I be compensated for lost property?  

Any property required to implement the preferred design for the corridor would be purchased from the 
property owner, following negotiation with the Town. Where required, discussions with impacted 
property owners to secure lands required to implement the preferred design will be initiated during the 
detailed design phase of the study.

How will construction impact my commute/access to my home/business?  

During construction, efforts will be made to maintain driveway access and to reduce the length of time 
the access will be impacted. Driveways may be closed for short periods of time (to be coordinated with 
property owner prior to construction activity). 

Stormwater Management
What Low Impact Development (LID) stormwater management techniques will be 
incorporated into the design?

All applicable LID stormwater management techniques were screened to select the most applicable 
techniques based on the constraints of the roadway. Enhanced grass swales, oil-grit separators, and 
catch basin protectors have been incorporated into the design to improve stormwater quantity and 

What does "designed for 10-year storm" mean?  

This means that the new storm sewers will be designed with sufficient hydraulic capacity to 
accommodate the peak flows of a storm of such size that the average time between events of equal or 
greater magnitude is 10 years. 

How will ongoing and planned developments (eg. The Pinnacle Lands) effect drainage and 
stormwater management in the village? 

At this time, no development application has been filed for the referenced lands. If an application were 
to be filed, detailed studies, including a separate drainage and stormwater management assessment 
would need to be completed and approved by the Town. These reports would be made available for the 
public to view.

Natural and Social Environmental Impacts
Will the natural woodlots be impacted?  

The recommended alignment will maintain the existing ROW of the roadway, and therefore is not 
anticipated to negatively impact the wooded areas adjacent to the roadway. 

How will the Shaw's Creek be impacted?  

Stormwater management and LID techniques have been incorporated into the design to avoid/minimize 
water quality & quantity impacts to adjacent watercourses. The Design alternatives analysis considered 
measures to reduce impacts to the watercourse and drainage features within the study area by 
increasing the capacity of the storm sewer, incorporating LID techniques., reducing permanent footprint 
impacts, identifying appropriate in-water work timing windows, and erosion control strategies.

What will be done to protect natural woodlots and local wildlife and habitat adjacent to the 
corridor (e.g. wetland associated with the Alton Mill Pond), including Species at Risk?

The recommended alignment will primarily be maintained to within the existing ROW of the roadway, 
and therefore is not anticipated to significantly impact the adjacent natural area. 

Will the reconstruction impact the trees in front of my property?  

Any trees within the corridor that conflict with the above ground infrastructure will require removal. A 
replanting plan will be completed during detailed design of the to mitigate the loss of any trees. 

Will the reconstruction impact groundwater quality and quantity?  

The reconstruction of the corridor is not anticipated to negatively impact groundwater quality/quantity. 
Prior to construction, a hydrogeological assessment will be completed to confirm ground water 
conditions, wells in the study area, and appropriate mitigation measures for potential impacts. During 
construction, groundwater wells will be monitored to ensure no negative impacts to groundwater quality 
and quantity. 

Will the reconstruction works impact archaeological resources?  

A Stage 2 Archaeological Assessment will be conducted in any undisturbed areas prior to any 
proposed construction to ensure archaeological resources are protected. 

Will cultural heritage properties be impacted?  

The preferred alternative is anticipated to result in only minor encroachment towards properties of 
cultural heritage value with no permanent negative impacts to any structures or landscape features of 
significant cultural heritage value. 

How will the extended urbanized cross section fit with the rural cultural heritage?  

The design of the corridor will incorporate non-intrusive design features that tie into the ongoing 
improvements completed by the Region of Peel, improving the public realm of the village core while 
retaining the cultural heritage of the village. A rural cross section will be retained on Main Street North 
of Mary Street.

Update (August 9, 2019)

The Display Boards that were available at the first PIC are attached for review. Also attached is a comment sheet which you can fill out and submit via email or regular mail. Submission details are in the comment sheet.

Update (July 23, 2019)

The first of two Public Information Centres (PIC) will be held to share information on existing conditions and general alternatives being considered, and to receive input from the public on the key issues and constraints within the study area. The PIC will be an informal “Open House” with materials on display and members of the project team on hand to  answer questions.

August 8, 2019 | 6 - 8 p.m.
Caledon Public Library, Alton Branch
35 Station Street
Caledon, ON L7K 0E2

See the full notice attached

Update (April 25, 2019)

The Town of Caledon has initiated an assessment for the reconstruction of Main Street North and Queen Street West (Alton Village) to increase connectivity and make the area more accessible to visitors.

The purpose of the study is to investigate a number of alternative solutions and develop a recommended road design that enhances connectivity and visitor accessibility to the Alton Village area. The study will consider technical, aesthetic, and structural requirements; as well as socio-economic, cultural heritage, and natural environment factors.

The full notice is attached.

Additional Resources

If you have any technological issues with opening the attachments, please contact the below personnel:

Shun H. Cheung, P.Eng., PMP
Project Manager, Engineering Services
Town of Caledon
905.584.2272 x.4040


David O'Sullivan, P.Eng., PMP
Senior Associate, Project Manager
R.V. Anderson Associates Limited
416.497.8600 x.1245