On Monday, April 25, 2016 at 11:32:03 AM UTC-4, wrote:
On 4/25/2016 10:42 AM, DerbyDad03 wrote:
Raised edges will allow dirt and other debris to get caught. Even the
smallest pile of dirt can catch weed seeds and allow them to grow.
In the crawl space under the house with no light?

sorry, I missed the flooding part...in that case, might I suggest a sump pit/pump in addition to the above...