Road and Engineering Projects

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City engineering projects

The Engineering Services branch is responsible for various engineering studies and infrastructure projects.

Types of City engineering projects

Project types
Project	Description
Bridge replacement	Removal and replacement of the bridge structure.
Bridge Rehabilitation	A treatment to extend the life of the bridge structure.
Crack Seal	Filling of pavement cracks on the asphalt surface.
Infrastructure Improvement	Involves the rehabilitation, replacement, or installation of infrastructure to improve conditions. This is often related to stormwater management.
Intersection Improvement	Involves the upgrade or widening of an intersection and/or the removal and replacement of the road asphalt and granular material, typically including curb and gutter.
Microsurface	Application of thin layer(s) of an asphalt and aggregate mixture over a road surface that extends the life road's life. Most often applied to roads that have curbs and gutter.
Resurfacing	Removal and replacement of a thin top layer of asphalt on the road surface. This may include miscellaneous curb and gutter and sidewalk repair.
Road Reconstruction	Removal and replacement of the asphalt and granular material. This typically includes curb and gutter, sidewalk and storm sewers.
Sidewalk	Involves the removal and replacement of sidewalk and/or the new construction of sidewalk.
Streetscape / Streetlighting	Updating of the sidewalk and streetlighting to a Downtown standard.
Surface Treatment and Slurry Seal	Application of thin layers of asphalt and aggregate over a road base course that restores the road surface. This is generally applied to rural roads.
Top-Lift	Application of thin layer of asphalt over an asphalt base that completes the surface of the road. This is generally applied two years after a road reconstruction.
Utility Relocation	Relocation of utility infrastructure in advance of future road construction.
Watercourse Improvement	Involves the improvement and/or reinforcement of eroding areas along watercourses.

Post Construction Information

After construction, community members may have questions or concerns about caring for their newly placed sod.

Sod care tips following installation after a City project

The sod placed in conjunction with this repair work carries a warranty period of 90 days.

What you should know

Please follow the guidelines below for maintaining the new sod.

Community members should not fertilize newly placed sod for at least 30 days after placement to avoid unnecessary sod damage.
New sod is not as deep-rooted as older established lawns and is more susceptible to droughts. During the summer, lawns require about an inch of water per week to maintain growth. Avoid frequent light watering, which will result in shallow rooting.
Newly placed sod should be permitted to grow, and community members should not cut new grass less than 64 mm or 2.5 in.
Some hazards for new sod are chinch bugs, grubs and other pests. Damage of this nature is most apparent when the weather is hot and dry in July and August. The usual sign of damage is a gradually expanding dead spot in the grass. Left untreated by residents, the pests can destroy an entire lawn.
Community members are encouraged to take a little extra care and water the sod thoroughly at reasonable intervals to ensure the grass does not dry out and become susceptible to damage or disease.

Please take care of your new sod by watering it thoroughly.

Regional road projects

The Region of Durham has a network of 60 arterial roads linking all corners of the Region and connecting to local road systems and Provincial highways. The Region of Durham Works Department maintains and upgrades the Regional road system.

Other infrastructure projects

View our Development Studies for information and the status of various engineering studies.
An assessment is underway to determine a route for TransCanada's Proposed Eastern Mainline Project. This includes a proposed gas pipeline routing through the City of Oshawa.
Visit the Enbridge Line 9 Reversal website for information on the Eastern Canadian Refinery Access Initiative.

Ministry of Transportation

Visit the Ministry of Transportation page for updates about ongoing road and bridge improvements.