Due to the high cost of dredging and the likelihood of nearly continuous maintenance, no action was taken.

These older tankers require continuous maintenance to keep them in good, safe working order at sea.

Finish the trough pipes in wood, which would need continuous maintenance, or try low-tech stone-cutting methods.

The temple requires continuous maintenance and other facilities.

There is continuous maintenance, updating and upgrading of all systems to ensure that the best possible communications system is available for those we service.

Upon completion the cofferdam is usually deconstructed unless the area requires continuous maintenance.

The extent and frequency of the network means it needs continuous maintenance.

The original field layout has been respected by the continuous maintenance of the boundary walls by succeeding generations.

Knights are units that require continuous maintenance through their activation mechanism, but have a wide variety of functions.

They now go dry in the summer months and their lower segments have become denuded ditches requiring continuous maintenance.