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Potholes are caused by vibration from traffic, and also by movement of the ground under the road. In cold weather, the water in the ground freezes and thaws - this makes the ground expand and contract, and makes cracks in the road. Traffic running over the cracks breaks them open further and creates a pothole.
Wiki User
∙ 16y ago
Wiki User
∙ 7y agoPotholes (whether they are in the tarmac of a road or are in natural surfaces such as rock, solid earth etc.) are formed during freezing weather conditions. Water (from rain, dew or surface water courses) flows into cracks in the surface and then freezes hard when the temperature drops below zero (usually at night time). When water freezes to ice, it expands, causing it to put pressure on the surrounding crack and pushing the sides asunder. After this has happened repeatedly over a period of time, the road surface, rock or whatever becomes weakened from repeated pressure and strain, so works loose to create other cracks around it. The process is repeated with these new cracks, until an area of the surface is completely undermined and works free altogether, leaving the characteristic pit or 'bowl' shape in the surface.
Wiki User
∙ 12y ago3 factors
freeze thaw..roads are regularly wet and cold weather turns water into ice...this expands in the gaps and works its way through.
increase in traffic...poor weather meks people use their cars instead of other transport(feet, bike , rollerblades, etc)
chemical attack..the rock salt/grit makes a solution eats into your apnt work if NT washd off...samething happens on the road
Wiki User
∙ 13y agoFrom what I understand, cracks form in the ashphalt, and then as the moisture from the snow and ice seep into the cracks, the cracks turn to potholes as the moisture freezes. This is because when water freezes it expands, this expansion causes the crack to get larger, large enough to be a pothole. Hope this helps! Best of luck! :)
Wiki User
∙ 11y agopotholes can form when there is a weak spot in the road and a lot of people driving on it make a hole or when there is water under the road and it freezes so that when it thaws out the road breaks and it can form quite big potholes.
Wiki User
∙ 11y agoThis is not a question.
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Freezing and thawing cycle that caus potholes in roads and breaks in rocks?
Mechanical
How are potholes formed in limestone regions?
When run-off water from rain, lakes, homes, rivers and other forms of water pass through the limestone it causes potholes to form in the limestone regions.
Does wind erosion make potholes too?
Create, probably not, but they do make them worse, once they're formed.
Freezing and thawing cycle that causes potholes in roads and breaks in rocks?
Freeze/thaw cycle doesn't create potholes. It creates cracks on pavement. Potholes form when water, whether from melting snow, rain or frost thawing gets into the cracks in the pavement and cause the road base to shift and develop voids just under the pavement. When this occurs, the weight of vehicles causes the pavement to crumble causing potholes.
What are potholes in roads caused by?
Almost always, potholes in a sealed road are caused by a weakness in the sub-structure, that allows excessive flex in the seal coat, and increasingly poor bonding with the sub-structure.In gravel roads, the cause is different. A small hollow collects water, and this is splashed out, along with some gravel, by a passing vehicle. Thus the hollow rapidly deepens and becomes larger.
Would you find potholes in the roads of regions where temperatures are above freezing all the time Why?
Would you find potholes in the roads of regions where temperatures are above freezing all the time
Does acid rain cause potholes?
YES, acid rain can effect roads, highways and even bridges (if it is made out of calcium carbonate) it is formed by the freeze-thaw weathering. by MK
Which city has the potholes in the us?
Having driven in many cities in the US I would have to say that Detroit Michigan has some of the worst roads in the country. I drive a lot in the state of Oklahoma. In Tulsa, the roads are really bad and uneven. Potholes there range anywhere from 1' to 6' in diameter and up to 2' deep in some places. Those potholes are just the ones located on paved roads. Some dirt or gravel roads have had up to half of the road missing after a big storm."During the fiscal year 2000-01, 83,613 potholes were repaired." That was from a report given by the city, on the conditions of roads in Tulsa. Those numbers, however, are just an estimate of the potholes that have been reported as repaired according to city maintenance records. There are still more potholes that haven't been reported, fixed, or are on roads that the city isn't responsible for maintaining.
Which city has the most potholes in the US?
There isn't a definitive answer to this question as it can vary depending on the year, location, and reporting methods. However, cities like Detroit, Los Angeles, and New York City are often cited for having a high number of potholes due to climate, traffic volume, and aging infrastructure.
Freezing and thawing cycle that caus potholes in roads and breaks in rocks?
Mechanical
In which course of the river are potholes formed?
Typically it is the upper course of the river
Oxbow lakes are formed in potholes?
Oxbow lake are usually formed in flat, low-lying plains close to where the river empties into another body of water. They are usually stillwater lakes and often they become swamps or bogs, not potholes.
What are the special conditions that cause greater problems for motorcycles?
rain, snow, ice, gravel, sand, potholes, poorly maintained roads
How are potholes formed in limestone regions?
When run-off water from rain, lakes, homes, rivers and other forms of water pass through the limestone it causes potholes to form in the limestone regions.
How do you fix a pothole?
Potholes are an increasingly common problem associated with roads. They have become a great source of irritation for most local councils and municipalities, as they do not generally have the people and materials to effectively fix them. Although it is easy to repair potholes, when repairs are made incorrectly the potholes quickly reopen and become a recurring problem, wasting valuable of resources.
Does wind erosion make potholes too?
Create, probably not, but they do make them worse, once they're formed.
What causes potholes to form in streets and roadway?
They are called potholes because a pot (cookware) has a big dent in it used for filling much like potholes in out roads. They are called potholes because a pot (cookware) has a big dent in it used for filling much like potholes in out roads.
