Highway 401 Cornwall Centre Road
Overpass Bridges Preliminary Design
and Environmental Assessment Study
City of Cornwall
Council Presentation
Study Area
N
Problem
 The twin Highway 401 Cornwall Centre Road overpass bridges
were constructed in the early 1960’s.
 These bridges have service lives of 50 - 70 years.
 The bridges have reached the end of their service life and will
need to be rehabilitated or reconstructed.
 Temporary measures have been implemented by MTO as a
safety precaution.
Alternative Planning Solutions
Carried
Forward
Not Carried Forward
Factor Weights
Global Factor Weights
Sub Factor Weights
Results of the Weighting Exercise
Technically
Preferred
Alternative
Technically Preferred Plan
RETAINING WALL
RETAINING WALL
Alternative 1A’: Two open-footing concrete rigid frame bridges
and retaining walls; 2 lanes of traffic in each direction
maintained on Highway 401; north side detour within MTO
right-of-way using retaining walls; Cornwall Centre Road closed
during construction.
Traffic Recommendations for Staging of
Preferred Alternative
Temporary Ramp Closure/
Redirect movements to
adjacent ramp
Add southbound
left turn lane
Add temporary
traffic signals
Highway 401 Work
Zone
•2 Lanes/Direction
•80 km/h
Temporary Road
Closures (2)
Traffic Recommendations for Staging of
Preferred Alternative – Detour Route
Preliminary
Detour
Route
All roads assigned to detour
route are designated as
arterial roads in the City of
Cornwall Official Plan.
Temporary closure of
Cornwall Centre Road for two
years.
Recommended Plan

The study team recommends Alternative 1A’ as the preferred alternative.

The plan includes:
 Two open-footing rigid frame bridges to carry Highway 401 traffic over Cornwall Centre
Road;
 2-stage construction maintaining 2 lanes of Highway 401 traffic in each direction;
 Highway 401 detour through the construction zone constructed north of existing
alignment within MTO right-of-way;
 New bridge includes provisions for pedestrians and cyclists on Cornwall Centre Road;
 Temporary closure of the north to west Highway 401 on-ramp.
 Temporary signals at the Brookdale Avenue interchange north ramp terminal and a left
turn lane; and
 Temporary closure of Cornwall Centre Road for two years.
Next Steps
 Following this meeting we will:
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Review all comments from the public and agencies;
Consider comments received;
Conduct briefing meetings with affected external agencies, interest groups
and property owners;
Prepare a Recommended Plan;
Present recommendations to Township of South Stormont and City of
Cornwall; and
Upon completion of the study, a Transportation Environmental Study
Report will be available for a 30 -day public review and comment. Notices
will be published at that time.