Bathrooms, Lighting, Parking Lot, Drainage

You must be an architectual student...

Engineers never design anything level and expect it to drain. Parking lots, similar to large acreage rooftops are designed with sumps (low spots) to collect drainage and properly dispose of it without harm to structure or subgrade.

Bathrooms fall under Architecture. Yea, can you believe it, even the arrogant are humbled with this task! My only input is that if your looking at stadium applications allow for more restrooms than you really think are necessary because in reality there are never enough!