Maya Ellison
Fire hydrants are often wrapped in plastic bags to protect them from corrosion caused by road salt and snow. This is a common practice in cities with cold winters, such as Brooklyn Center, Plymouth, and Rochester in Minnesota, where temperatures can drop below freezing. The plastic bags are usually red, yellow, or clear, and they are designed to be easily ripped off in case of an emergency. Some cities, such as Brooklyn Park and Edina, have also tried covering their hydrants in plastic but have since stopped the practice, finding it to be of little value.
| Characteristics | Values |
|---|---|
| Reason for plastic covering | To protect the fire hydrants from corrosion caused by de-icing salt, snow, and road grime |
| Plastic type | Red, clear, or yellow plastic bags |
| Location | Brooklyn Center, Brooklyn Park, Plymouth, Rochester, New Hope, Edina, and other cities in Minnesota |
| Implementation | Some cities cover all hydrants, while others only cover those on main roads or heavily traveled roads |
| Benefits | Easier for firefighters to use, reduces maintenance, and may extend the lifespan of the hydrants |
| Challenges | Some cities decided against it due to the additional maintenance of removing the plastic |
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What You'll Learn
To prevent corrosion from road salt
Fire hydrants are covered in plastic to protect them from corrosion caused by road salt. This is especially common in areas with snowy winters, where salt is spread on the roads to melt the ice and snow. The salt can cause metal hydrants to corrode, making it difficult for firefighters to remove the caps in an emergency.
The plastic coverings act as a barrier between the salt and the metal, preventing corrosion from occurring. This method is often used on hydrants located along major roads or heavily travelled county roads, where there is a higher concentration of salt from road treatment.
In some cities, such as Brooklyn Center, the fire hydrants are covered in red plastic bags to indicate that they are protected from road salt. Other cities, like Plymouth, use giant yellow plastic bags for the same purpose. The plastic coverings are designed to be easily ripped off in case of an emergency, ensuring that the hydrants are still accessible when needed.
While some cities have found success in using plastic coverings to prevent corrosion, not all cities have adopted this practice. For example, the fire chief in Minnetonka, John Vance, stated that they evaluated bagging hydrants but decided against it. Instead, they choose to inspect and address any corrosion issues on an annual basis.
Overall, the use of plastic coverings on fire hydrants is a cost-effective way to prevent corrosion from road salt, ensuring that the hydrants remain functional and accessible for firefighters in emergency situations.
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To protect the mechanical nut from freezing up
Fire hydrants are wrapped in plastic to protect the mechanical nut on top from freezing up. When roads are treated with de-icing salt, the chemical concoction can cause metal to corrode. This salt can enter the nut and cause it to freeze up, making it difficult for fire crews to unscrew the hydrant when needed.
Plastic coverings act as a barrier to protect the metal from salt corrosion. This protective measure is particularly important for hydrants along heavily trafficked roads, where more salt is used. By bagging the hydrants, cities can prevent corrosion and ensure the nuts remain easy to operate.
In addition to protecting the mechanical nut, the plastic coverings also safeguard the hydrants from road grime and salt. This preventative measure helps to maintain the functionality of the hydrants and ensures they are ready for use in emergencies.
The plastic bags used for this purpose are typically clear or red and can be easily ripped off if the hydrant needs to be accessed. While some cities have adopted this practice, others have chosen not to, opting instead for annual inspections and reactive maintenance.
Overall, the primary purpose of covering fire hydrants in plastic is to protect the mechanical nut from freezing up due to salt corrosion, thereby ensuring the hydrants remain operational for fire crews.
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To indicate that a hydrant is out of service
Fire hydrants are covered in plastic to indicate that they are out of service. This is done to protect them from deterioration and corrosion due to salt and snow, which can make it difficult for firefighters to remove the caps.
In some cases, plastic bags are used to cover the hydrants, while in others, a plastic cap is placed on top of the hydrant. The plastic covering indicates that the hydrant is not in use and allows Public Works employees to identify and fix any issues.
For example, in Brooklyn Center, Minnesota, fire hydrants are covered in red plastic bags to protect them from road grime and road salt. Similarly, in Rochester, Minnesota, fire hydrants are wrapped in large plastic sheets or clear plastic to prevent corrosion from road salt.
In New Hope, Minnesota, fire hydrants are also wrapped in clear plastic to prevent chemicals from getting inside the mechanical nut, causing it to freeze up and become difficult to unscrew. This method also reduces the workload for the Public Works crew.
While covering fire hydrants in plastic is a common practice, not all cities in the same area choose to do so. Some cities, like Wayzata and Minnetonka, have stated that they do not plan to put plastic around their hydrants. Instead, they inspect and address any corrosion issues as they arise.
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To make it easier to identify live hydrants
Fire hydrants are covered in plastic to make it easier to identify live hydrants. In some cases, plastic caps that are orange and large are placed on the turned-off hydrants. This way, firefighters can easily identify which hydrants are off or live when they arrive at the scene.
Fire hydrants covered in plastic are typically still full of water and operational. The plastic covering is used to protect the hydrants from corrosion caused by road salt and snow. This corrosion can make it difficult for firefighters to remove the caps. By preventing corrosion, the plastic coverings ensure that the hydrants remain functional and easy to use in emergencies.
In some locations, such as Brooklyn Center, each fire truck is equipped with a utility knife to cut through the plastic covering if needed. This allows firefighters to quickly access the hydrant without any hindrance. The plastic covering also serves as a protective barrier against road grime and salt, ensuring that the hydrant is not corroded and can be operated smoothly when required.
The use of plastic coverings on fire hydrants is a proactive approach to maintenance. By preventing corrosion and maintaining the functionality of the hydrants, cities can extend the lifespan of this critical emergency equipment. It also helps to streamline the response process during emergencies, as firefighters can quickly identify and access live hydrants without encountering any issues.
The plastic coverings are typically applied during the winter season when the use of salt and de-icing chemicals is more prevalent. By taking this preventive measure, cities aim to reduce the maintenance workload for public works crews and ensure the optimal performance of fire hydrants throughout the year.
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To prevent corrosion from snow
Fire hydrants are wrapped in plastic to prevent corrosion from snow and de-icing salt. Snow and salt can corrode the metal hydrants, making it harder for firefighters to remove the caps. This is especially true in heavily trafficked areas, where more salt is used to melt the snow, and more snow is likely to pile up.
In places like Brooklyn Center, Minnesota, fire hydrants are covered in red plastic bags to protect them from road salt and grime. In Rochester, Minnesota, fire hydrants are wrapped in plastic to protect them from salt when ice gets too thick. In Plymouth, Minnesota, fire hydrants are covered in yellow plastic bags to protect them from corrosion caused by de-icing salt.
Covering fire hydrants in plastic is a preventative measure to stop corrosion before it becomes a problem. It is also an inexpensive solution. If a hydrant is out of service, it can be costly to repair, and the plastic covering can help to avoid this.
Additionally, the plastic covering can make it easier for firefighters to use the hydrants. When a hydrant is not corroded, it is easier to move and opens more smoothly, reducing the strain on the individuals opening the hydrant.
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Frequently asked questions
Fire hydrants are covered in plastic to protect them from corrosion caused by de-icing salt, road salt, snow, and road grime.
Yes, fire hydrants covered in plastic are still usable. The plastic can be easily ripped off in case of an emergency.
Fire hydrants are covered in plastic that is red, yellow, or clear.
Fire hydrants that are turned off are capped with large orange plastic caps to signal to firefighters that they are off and not live.
Some cities and counties have decided against covering fire hydrants in plastic, opting instead for annual inspections and maintenance to address any corrosion issues.
