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Public Works

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Potholes

Potholes can be more than just a nuisance to drivers—they can actually cause damage to your car. You can help keep our roads safe and free of potholes by reporting potholes.

Cause

Freeze thaw cycles during the spring season cause most potholes. During warmer weather, the snow melts, causing water to seep into the cracks in the pavement and/or sub base. When the temperature drops, the water freezes and causes the sub base to expand. This puts pressure on the pavement in a small area, resulting in pavement failure or a pothole.

Similarly, water in the cracks or in between the concrete and asphalt overlays can freeze, causing pieces of pavement to pop out. Heavy traffic puts an added burden on weak pavement.

Repair

An important part of street maintenance is repairing potholes. The City strives to repair potholes in a safe and cost effective manner, keeping in mind safety, budget, personnel, and environmental concerns. Depending on the situation, a pothole repair may involve a temporary, semi-permanent or permanent solution. Following are overviews of repair types:

Temporary Repair

  • Cold-mix patch.
  • Asphalt product designed to remain workable during cold weather.
  • Good bond between pavement and patch is not made, thus water can quickly find its way under the patch forcing it out due to freeze thaw action.

Semi-Permanent Repair

  • Pressurized-Emulsion Patch
  • Machine-applied spray consisting of a combination of hot emulsified asphalt oil and crushed limestone chips.
  • High pressure at which the patch material is sprayed forces it tightly into the pothole, and to some extent, it displaces water in the pothole.
  • Repair lasts approximately 6 – 8 months

Permanent Repair

  • Hot-mix patch made of hot asphalt.
  • Applied during dry weather.
  • Debris in the pothole is swept/blown out and a tack coat of sticky emulsified asphalt oil is applied to the pothole.
  • The hot asphalt mixture is placed into pothole and compacted with a vibratory plate compactor or vibratory roller.
  • Produces a dense, hard patch that seals the edges of the pothole preventing water from getting under the patch.

Reporting a Vehicle Damaged by a Pothole

If your vehicle was damaged when you hit a pothole, we recommend contacting Manitoba Public Insurance. A clear advantage to contacting them is that the MPI Adjuster will handle many of the details associated with resolving this situation.

You also have the option of contacting City Claims directly; however you will be responsible for handling many of the details that the MPI Adjuster would have handled for you.

When contacting City Claims directly, you will be expected to:

  • Provide a minimum of two estimates
  • Arrange an appointment with a City Claims adjuster to see damage

By far, the easiest way to handle this situation is to contact Manitoba Public Insurance. Visit the MPI Contact Us page.


Last update: March 11, 2016