2019 Minor Capital Road Rehabilitation and Improvement Projects Project Director. Project Management, Site Coordination and Inspection Services including
Asphalt removal, warm/hot mix asphalt paving and intersection improvement at projects the following locations:
- Major Mackenzie Drive, Rutherford Road, Highway 27, Weston Road, Major Mackenzie Drive, Carrville Road
And Partial depth removal of asphalt, warm mix asphalt paving and intersection improvement projects at the following locations:
- Warden Avenue, Bloomington Road
York Region has retained CFA to provide contract administration and site inspection services for projects in its 2019 road rehabilitation program. Construction is being completed within densely built-up commercial and residential areas and on high-volume arterial roads, using a range of rehabilitation methods and materials.
CFA oversaw asphalt removal, warm/hot-mix asphalt paving, and intersection improvements at the following locations:
- Major Mackenzie Drive West—The project site is in a densely populated and busy area with high traffic volumes and several other infrastructure projects are underway in the area, such as construction at the new Mackenzie Vaughan Hospital and for large housing developments. Superpave asphalt was used for the rehabilitation of Major Mackenzie Drive West. The work included the rehabilitation of the intersections and update of signals, and also culvert replacements and new maintenance holes and catch basin chambers at the Dufferin Street intersection. Many complaints where made about nighttime noise from the milling operations and other construction work so the construction was shifted to daytime operation, which posed challenges for traffic-control operations as a result of much larger traffic volumes on both Major Mackenzie Drive West and Dufferin Street.
- Rutherford Road—Superpave asphalt was used throughout Rutherford Road and multiple signalized intersections were updated to new Region standards.
- Highway 27—This was a very challenging area with high traffic flows from nearby Highway 427 and Highway 407, the densely populated surrounding neighbourhood, and popular shopping areas along Highway 27A. A Superpave Top course was used throughout, including areas of fiber-reinforced base SP19 along Highway 27, as well as an innovative CIREAM (cold in place recyclable expanded asphalt mix) road base asphalt paved by rotomilling. Multiple intersections were updated to new AODA standards.
- Weston Road
- Major Mackenzie Drive West
- Carrville Road
- King Road—The project included the removal of several cross-culverts and a tri-culvert, with use of a hydrovac to expose an Enbridge gas line that was in conflict with the tri-culvert and implementation of measures to protect the line.
Partial-depth removal of asphalt, warm-mix asphalt paving, and intersection improvements were completed at two locations:
- Warden Avenue
- Bloomington Road
CFA has also been asked to oversee intersection improvements at the Vaughan City Hall Main Entrance at 2141 Major Mackenzie Drive West. Work includes:
- Construction of a dedicated eastbound right-turn lane with a concrete-slab raised median island at Major Mackenzie Drive West and the Vaughan City Hall main entrance and a dedicated westbound left-turn lane with a concrete-slab raised median island at Major Mackenzie Drive West and the Vaughan City Hall main entrance
- Widening of the Vaughan City Hall main drive and construction of new asphalt islands at the library entrance and the Vaughan City Hall east entrance
- Installation of a new storm sewer from the library entrance towards the Vaughan City Hall east entrance
- Excavation and grading at boulevards and installation of a new concrete sidewalk and seat-wall as per City standards, including planting of new trees for streetscaping
- Removal of asphalt (partial-depth/full-depth), installation of new paving surface and binder course, and new line painting
- Installation of new traffic-control signals and poles at the Vaughan City Hall main entrance and Major Mackenzie Drive West
- Installation of new street lights from the library entrance to the rail bridge (east of the City Hall east entrance)
On-going challenges of the project include:
- Shallow utilities—the existing high-pressure gas main and Yorknet Telecom Network (YTN) were too shallow in areas and necessitated extra precision during excavation
- Unknown utilities—The contractor encountered Bell and Rogers cables that were not marked in the locates. The cables had to be relocated in order to install the storm sewer, and maintenance holes and catch basins had to be located to accommodate the newly discovered infrastructure.
- Interference of the high-pressure gas line with the sewer pipe—The high-pressure gas main ran parallel to the proposed sewer placement for approximately 40 m. For safety reasons, the contractor did not want to excavate close to gas main for this length so construction drawings had to be revised with the sewer relocated away from the gas main.
Project Highlights
- Use of several rehabilitation methods and materials, including CIREAM and fibre-reinforced asphalt
- Construction within densely built-up commercial and residential areas and on high-volume arterial roads
- Resolution of conflicts with both shallow and unmarked utilities and a high-pressure gas main
- Intersection improvements to AODA standards, culvert and maintenance hole replacements, turning lanes, and traffic signals