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Description:
Alligator cracking consists of a series of interconnecting cracks caused by fatigue or failure of the asphalt surface under repeated traffic.
This defect cannot be repaired with patching. |
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Description:
Blocks are interconnected cracks that divide the pavement into approximately rectangular pieces.
This defect cannot be repaired with patching. |
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Description:
Asphalt damage on a Bridge Deck may take longer to repair depending on the location of the defect. Patching around expansion joints on a Bridge is a more difficult process than patching a pothole. |
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Description:
Broken asphalt is mainly caused from the freeze and thaw cycles. In some cases, they shift and collapse from lack of water draining. |
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Description:
Distortions are usually caused by corrugations, bumps, sags, and shoving. They are localized abrupt upward or downward displacements in the pavement surface. This defect cannot be repaired with patching.
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Longitudinal & Transverse Cracks |
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Description:
Longitudinal cracks are parallel to the pavement’s centerline or lay-down direction. They may be adjacent to the pavement edge.
Transverse cracks extend across the pavement at approximately right angles to the pavement centerline.
These defects cannot be repaired with patching. |
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Manhole - Asphalt Cut and Patch |
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Description:
The manhole depicted here has had a structural defect or repair work performed, which resulted in the surrounding asphalt being cut out. When repairing manhole issues, the asphalt is often cut out in a square or rectangular shape. The work is completed and then there is an asphalt patch placed around the manhole and out to the cut edges of the existing asphalt. |
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Description:
Broken asphalt around a manhole may be caused by the freeze and thaw cycles during the winter. It also may be caused by an underlying issue with the manhole structure. In some cases, they shift and collapse from lack of water draining. This type of patching may take longer than patching a pothole. |
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Description:
Pothole formation is associated with asphalt fatigue and damage. The more severe potholes most commonly appear in late Winter or early Spring after a series of freeze-thaw cycles. Asphalt defects measuring greater than 8cm in depth are considered an immediate hazard. |
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Description:
A rut is a surface depression in the wheel paths. Rutting stems from a permanent deformation in any of the pavement layers or sub-grade.
This defect cannot be repaired with patching. |
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Description:
A hole on the shoulder of the road could be caused by improper drainage. The pooling of water mixed with the freeze and thaws during the winter months causes the asphalt and shoulder material to deteriorate, thus resulting in a hole which catches water flowing from the street.
In order to repair this, the shoulder may need to be graded or an asphalt swale could be installed to divert the flow of water away from the asphalt. |
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Description:
A sinkhole can be a depression in the road or in some cases where the pavement has given way (see photo – left). They are caused by water moving underground, a break in the sewer/water system or a void left by degraded organic matter. |
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Description:
A utility or street cut is a section of asphalt cut out in order to install/repair underground utility infrastructure and it is repaved after the work is complete.
A defect with a previously patched utility or street cut may not be completed within 14 business days. Often these cuts will settle after being patched which causes a dip in the street. In some cases, the Contractor responsible for the original street cut must be contacted to return and repair the defect. |
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Description:
Weathering and raveling are the wearing away of the pavement surface caused by the loss of asphalt or tar binder and dislodging aggregate particles.
This defect cannot be repaired with patching. |
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