Observe After Rainfall

Notice where water appears first, how it reaches the area, and how long it remains. Photos from a safe location can help distinguish a recurring low spot from a single unusual storm.

Look Beyond the Puddle

Roof runoff, hard surfaces, grade changes, and neighboring flows may contribute. A drainage plan should address the source, collection point, and discharge route together.

Compare Collection Methods

Surface drains collect visible runoff; subsurface drains address water moving through the ground. Some sites need a combination, and pumping may be considered where gravity drainage is not suitable.

Plan Maintenance

Ask how inlets, outlets, and any pumps will be accessed and maintained. A system can only work as intended when its collection and discharge paths remain serviceable.