As it often happens in urban areas where land is at a premium, the 4.5-acre site did not have enough space to fit in both a detention pond and parking lot. The engineers took the only possible option — designing an underground stormwater system.
"If the engineers used an above-ground detention system, the site would have lost 22,000 sq. ft., which would have cost the owner about $166,000," said contractor Danny Clements at Danny Clements Builders. "Instead, an underground system is conveniently located under the parking lot, taking up no usable space."