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Moose Jaw Corridor Study

The Government of Saskatchewan is planning a study for Highway 1 through Moose Jaw that will focus on key intersections including 32nd Avenue NW, 9th Avenue NW, Highway 2 and Thatcher Drive.
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1. Study Background

Highway 1 through Moose Jaw is an important part of the national highway system. Increasing traffic is straining the capacity of several key intersections. Changes are needed to improve safety and capacity. Any improvements must consider safety, limited space and maintaining access to local businesses.

A study for Highway 1 through Moose Jaw will focus on key intersections including 32nd Avenue NW, 9th Avenue NW, Highway 2, and Thatcher Drive. We want to hear your thoughts on some proposed options.

Study Area

Issues Map Moose Jaw Corridor

Project Goals

  • Develop a plan to improve safety and traffic flow.
  • Identify solutions at key intersections.
  • Determine how to reconfigure the Highway 2 interchange.

Considerations

The planning study will consider the following:

  • Safety
  • Free-flow Highway 1
  • Local benefits
  • Increasing traffic
  • Impact on businesses
  • Land requirements
  • Heavy vehicles
  • Construction costs
  • Maintenance costs
  • Construction timing
  • Ease of construction
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2. Preliminary Options

Highway 1 and 32nd Avenue NW

A long-term solution is required to accommodate future development. In the last five years there have been one property damage and one injury collision with zero fatalities. The intersection averages 6,350 vehicles per day on Highway 1. 

Partial Cloverleaf

This option uses ramps to avoid existing development. 32nd Avenue NW crosses Highway 1 using an overpass. Service roads accommodate existing and future developments. Traffic enters and exits Highway 1 using ramps.

Highway 1 at 32nd avenue

Highway 1 and 32nd Ave NW Video

Key Characteristics

  • Existing properties not impacted.
  • Service roads connect existing and future developments to the interchange.
  • Requires additional land to build ramps and service roads.
  • Improves safety with ramps and a bridge.
  • Maintains free flow on Highway 1.
  • Construction cost is $45M to $55M.

Highway 1 and 9th Avenue NW

There are safety concerns related to traffic crossing Highway 1 as well as the proximity of the North Service Road. In the last five years there have been nine property damage and 10 injury collisions with zero fatalities. The intersection averages 5,650 vehicles per day on Highway 1.

Option 1 | Right-in / Right-out Intersection

This option eliminates left turns in any direction. Traffic on 9th Avenue NW is not able to cross the highway. This improves safety by eliminating conflict points. It prevents left turn and T-bone collisions, which are the most severe.

Moose Jaw - Highway 1 at 9th Option 1

Key Characteristics

  • Closed Highway 1 median impacts access to existing properties.
  • Some 9th Ave NW traffic moved to Highway 2 interchange.
  • Maintains free flow on Highway 1.
  • Improves safety by eliminating Highway 1 cross traffic.
  • Construction cost is less than $1M.

Option 2 | Traffic Signals

This option eliminates free flow of Highway 1 through Moose Jaw. Traffic signals require the speed lowered from 80 km/h to 70 km/h. Highway 1 must shift further south to provide more space between the highway and the North Service Road. Traffic signals reduce left turn and T-bone crashes, but increase rear-end collisions.

Moose Jaw - Highway 1 at 9th Option 3 Lights

Key Characteristics

  • Existing properties not impacted.
  • Increases distance between Highway 1 and North Service Road.
  • All turns are allowed.
  • Speed reduction.
  • Does not maintain free flow on Highway 1.
  • Improves safety for traffic crossing Highway 1.
  • Construction cost is $8M to $12M.

This option eliminates free flow of Highway 1 through Moose Jaw. Traffic signals require the speed lowered from 80 km/h to 70 km/h. Highway 1 must shift further south to provide more space between the highway and the North Service Road. Traffic signals reduce left turn and T-bone crashes, but increase rear-end collisions.

Option 3 | Roundabout

A two-lane roundabout requires a speed reduction from 80 km/h to 60 km/h on the approach. The recommended speed through the roundabout is 30 km/h.

Moose Jaw - Highway 1 at 9th Option 2

Key Characteristics

  • Existing properties not impacted.
  • All turns are allowed
  • Speed reduction.
  • Does not maintain free flow on Highway 1.
  • Improves safety by reducing the risk of severe collisions.
  • Construction cost is $2M to $4M.

Option 4 | Partial Cloverleaf

Highway 1 crosses 9th Avenue NW using an overpass. Traffic enters and exits Highway 1 using ramps. A bridge over the rail crossing to the west keeps Highway 1 free flow.

Moose Jaw - Highway 1 at 9th - future

Key Characteristics

  • Ramps may impact development.
  • Service roads and ramps connect side streets to Highway 1.
  • Highway 1 and 16th Avenue intersection must close.
  • Maintains free flow on Highway 1.
  • Improves safety with ramps and bridges.
  • Construction cost is $45M to $55M.

Highway 1 and 9th Ave NW Video

Highway 1 and Highway 2

The Highway 2 bridge over Highway 1 does not provide enough clearance for large trucks. The interchange needs to be reconfigured. In the last five years there have been one property damage and 11 injury collisions with zero fatalities. The interchange averages 7,750 vehicles per day on Highway 1 and 6,050 vehicles per day on Highway 2.

Diamond Interchange

A diamond interchange minimizes property impacts. The interchange has appropriate clearance for large trucks. Traffic enters and exits Highway 1 using ramps.

Highway 1 at Thatcher Drive - Option 1

Key Characteristics

  • Properties in the northeast may be impacted by off ramp.
  • Higher bridge.
  • Modify from partial cloverleaf to diamond interchange.
  • Changes to off ramps.
  • No Highway 1 access at Highland Road.
  • Maintains free flow on Highway 1.
  • Improves safety by increasing bridge clearance.
  • Construction cost is $45M to $55M.

Highway 1 and Highway 2 Diamond Video

Highway 1 and Thatcher Drive

There are safety concerns related to traffic crossing Highway 1 at Thatcher Drive. In the last five years there have been six property damage collisions and one injury collision with zero fatalities. The intersection averages 9,000 vehicles per day on Highway 1.

Option 1 | Traffic Signals

This option eliminates free flow of Highway 1 through Moose Jaw. Traffic signals require the speed to be lowered from 100 km/h to 70 km/h. Traffic signals reduce left turn and T-bone collisions, but increase rear-end collisions.

Highway 1 at Thatcher Drive - Option 3 lights

Key Characteristics

  • Existing properties not impacted.
  • All turns allowed.
  • Speed reduction.
  • Does not maintain free flow on Highway 1.
  • Improves safety for movements crossing Highway 1.
  • Construction cost is $750,000 to $1.5M

Option 2 | Roundabout

A two-lane roundabout requires a speed reduction from 100 km/h to 60 km/h on the approach. The recommended speed through the roundabout is 30 km/h.

Highway 1 Moose Jaw at Thatcher Drive roundabout

Key Characteristics

  • Existing properties not impacted.
  • All turns are allowed.
  • Speed reduction.
  • Does not maintain free flow on Highway 1.
  • Improves safety by reducing the risk of severe collisions.
  • Construction cost is $2M to $4M.

Option 3 | Diamond Interchange

This option requires an overpass where Thatcher Drive crosses Highway 1. Traffic enters and exits Highway 1 using ramps.

Highway 1 at Thatcher Drive - Option 2

Key Characteristics

  • Realigns Thatcher Drive to minimize impacts on existing developments.
  • Eastbound on-ramp may impact properties.
  • Includes service roads to provide access to adjacent properties.
  • Maintains free flow on Highway 1.
  • Improves safety with ramps and a bridge.
  • Construction cost is $45M to $55M.

Highway 1 and Thatcher Drive Video

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3. Complete the Survey

We want to hear what you think.

Complete the Survey

Next Steps

  • Evaluate survey feedback
  • Determine preferred options
  • Refine recommended designs
  • Gather public comments on new recommendations
  • Final report
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4. Contact

For more information, please contact:

Josh Kerr, P. Eng.
Senior Project Manager, Design Delivery
Government of Saskatchewan
Email: joshua.kerr@gov.sk.ca
Phone: 306-519-8277

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