The technique of Cured In Place Pipe MN (CIPP) is a way of repairing or replacing underground pipelines without needing to dig up the overlying land, usually occupied by a road. The technique may be used on bendy pipes as well, although care is needed to avoid stretches in wrinkles. The end result is a pipe with a pipe that has no joints or seams. Where lateral pipes feed into or out of the repaired pipe, a robot cutter is used to re-open them.
The process involves inverting and pulling through a lining from one end of the pipe to the other. The lining itself is made up of a polyester felt that is saturated with resin. Once the liner is in place it is then 'cured' using hot water, steam or ultra-violet light. Finally, the new, corrosion-resistant pipeline is inspected by closed-circuit television.
The technology was developed in London, England, by a man named Eric Wood in 1971. Patented in 1977, the process was not commercialized and introduced to the public until 1994. There is a certain amount of irony in the fact that the process was invented in London, where five-sixths of the Victorian sewage pipes are between 100 and 150 years old. A four billion pound project is underway to replace the leaky infrastructure. They are digging up the streets, causing untold misery to Londoners.
The State of Minnesota is one area where the concept of CIPP has been fully embraced. Brooklyn Park, a suburb in the northwestern Twin Cities area, is home to the famous Edinburgh USA Golf Course. It is one of the top 25 affordable golf courses in the country. Brooklyn Park, MN, is also nicknamed 'tree city' because of its 67 award-winning parks. Imagine if these areas of beauty had to be dug up to accommodate pipe repairs.
South of Minneapolis lies the suburb of Lakeville. With the exception of Aronson Park to the northeast of Lakeville, it is mostly residential in nature. What a dreadful place to have to dig up the roads. The City of Red Wing is an hour away from Lakeville by car.
Situated right on the Mississippi River, Red Wing is the county seat of Goodwin County. Tucked in between the southern bank of the river, Soldiers Memorial Park and Civic Center Park, cured in place pipe MN works well here. Perpendicular to the Lakeville-Brooklyn Park axis lies Maplewood. Maplewood was incorporated as a city in 1957.
There are five main roadways that link Maplewood with surrounding areas. These are Minnesota highway 36, US 61 and three interstates, 35E, 694 and 94. At the western pole of the Twin Cities grid is St Louis Park. Having to dig up the roads here to repair or replace pipelines would be disastrous, especially to the commuters who live in this residential community.
The cured in place pipe MN process is most effective in pipes with a diameter of between four inches and 110 inches. The reason why London's extensive Victorian sewer system needs to be excavated could be that it is outside this specification. That may be why it is necessary to tear up London's roads and irritate residents and commuters.
The process involves inverting and pulling through a lining from one end of the pipe to the other. The lining itself is made up of a polyester felt that is saturated with resin. Once the liner is in place it is then 'cured' using hot water, steam or ultra-violet light. Finally, the new, corrosion-resistant pipeline is inspected by closed-circuit television.
The technology was developed in London, England, by a man named Eric Wood in 1971. Patented in 1977, the process was not commercialized and introduced to the public until 1994. There is a certain amount of irony in the fact that the process was invented in London, where five-sixths of the Victorian sewage pipes are between 100 and 150 years old. A four billion pound project is underway to replace the leaky infrastructure. They are digging up the streets, causing untold misery to Londoners.
The State of Minnesota is one area where the concept of CIPP has been fully embraced. Brooklyn Park, a suburb in the northwestern Twin Cities area, is home to the famous Edinburgh USA Golf Course. It is one of the top 25 affordable golf courses in the country. Brooklyn Park, MN, is also nicknamed 'tree city' because of its 67 award-winning parks. Imagine if these areas of beauty had to be dug up to accommodate pipe repairs.
South of Minneapolis lies the suburb of Lakeville. With the exception of Aronson Park to the northeast of Lakeville, it is mostly residential in nature. What a dreadful place to have to dig up the roads. The City of Red Wing is an hour away from Lakeville by car.
Situated right on the Mississippi River, Red Wing is the county seat of Goodwin County. Tucked in between the southern bank of the river, Soldiers Memorial Park and Civic Center Park, cured in place pipe MN works well here. Perpendicular to the Lakeville-Brooklyn Park axis lies Maplewood. Maplewood was incorporated as a city in 1957.
There are five main roadways that link Maplewood with surrounding areas. These are Minnesota highway 36, US 61 and three interstates, 35E, 694 and 94. At the western pole of the Twin Cities grid is St Louis Park. Having to dig up the roads here to repair or replace pipelines would be disastrous, especially to the commuters who live in this residential community.
The cured in place pipe MN process is most effective in pipes with a diameter of between four inches and 110 inches. The reason why London's extensive Victorian sewer system needs to be excavated could be that it is outside this specification. That may be why it is necessary to tear up London's roads and irritate residents and commuters.