The DPRs Role MoRTH Delhi draft shafts Purpose example capacity Ministry rooftops circular roof area September practices 20 liters Karnataka basements key points Schedule C dependence Importance Consultant water table Contractors water needs square meter storage tanks surface runoff water scarcity implementation Overall Impact Road Transport Concessionaires allegianceindia water resources project schedule highway projects crucial Practice highway corridor Different regions National Highways Local Adaptations wayside amenities executing agencies rainfall intensity storage structures suitable locations various structures ecological balance specific guidelines Toll plaza buildings groundwater aquifers Design Considerations geological conditions Rain Water Harvesting external water sources More Details Contac Us completion certificates additional water storage Central Ground Water Board grade-separated structures artificial recharge systems Allegiance Water Management sustainable water management rainwater harvesting systems artificial recharging systems final Detailed Project Reports rainwater harvesting provisions rainwater harvesting structures rainwater harvesting arrangements