BACKGROUND Poor drainage and unstable subsoils resulted in a parking lot where stormwater stood in pools after rain events. 

SITE SPECIFIC CONCERNS/GOALS The parking lot had been constructed near a wetland.  Excavation revealed water levels that were very near the surface. 

SOLUTIONS Existing blacktop and base gravel were removed and stockpiled for re-use.  Unstable soils were removed and underlying soils were graded during dry weather to decrease wetland impacts.  We installed a Geotextile Tensar system that added horizontal strength to the site.  The stockpiled material was used to build a more stable base for the parking surface.  A recycled hot asphalt mix was installed on top.  Now 3 years old, the new lot withstands countless garbage truck runs, spring thaws, and regular automobile and truck traffic.