Bono Consulting has provided civil engineering analysis for site drainage plans to improve the existing drainage on a site. Many property owners notice problems after heavy rainstorms, especially ponding in low-lying areas or being inundated with runoff from adjacent properties. This can cause basement flooding or lead to an unusable lawn. Per Illinois Drainage law, the landowner must accept surface water flowing naturally from higher ground and not block the neighbor’s runoff from coming onto the property.
Our drainage and grading plans give our clients and their earthwork contractors specific directions for preparing and finishing a site. The drainage plans we prepare for our clients specify how stormwater will be managed on their property in the finished condition. Our careful analysis and attention to detail ensure that our drainage plans will prevent ponding, excessive runoff, and flooding.
Grading plans go hand in hand with the drainage plans, showing the proposed cut and fill lines on a site. The grading must work to direct surface runoff away from buildings and low-lying areas. Our engineers help the property owner develop a grading plan that collects the storm runoff water and brings it out to the sewer main.