What is a common consequence of failing to properly maintain drainage systems?

When drainage systems are not properly maintained, one of the primary concerns is the increased risk of system failure. Over time, debris, sediment, and blockages can accumulate, which can lead to backups or even complete system breakdowns. This can result in significant issues such as flooding, structural damage, and costly repairs. Proper maintenance helps ensure that water is effectively channeled away from properties, preserving both the integrity of the drainage system and the surrounding environment. Without regular checks and cleaning, the potential for failure escalates, making this response the most logical choice.

The other options do not accurately reflect the consequences of neglecting drainage maintenance. Improved water flow and enhanced soil quality would not result from a poorly maintained system, and while lower property values can occur over time as a result of the failures resulting from inadequate drainage, the immediate and direct consequence is the increased risk of system failure.