It also does not require repairs over its 10-15 year life.
In 1791 it required further repairs which took place from June 1846 to the end of 1852.
These are the features most likely to require expensive repair.
A large percentage of the system's track requires major repair.
If such a crack is old or shows no signs of growing, its cause probably does not require repair.
Fire destroyed part of the ride in 1949 and the structure required major repairs.
Eventually, after more than 90 years of service, the bridge required extensive repairs.
However, the building required extensive repairs before it could be used as a new college facility.
The same cannot be said for the cello, which requires repairs.
By 31 October only 34 were operational with another 41 requiring repair.