Final answer:
To reduce runoff in an 80-acre subdivision during a storm, the developer can incorporate conservation principles with wetlands and lagoons, along with infrastructure strategies like permeable paving materials, rain gardens, and retention ponds. These methods aid in water absorption, filtration, and management, ensuring less surface run-off and promoting groundwater recharge.
Step-by-step explanation:
To reduce the amount of run-off that leaves an 80-acre subdivision during a storm, a developer can implement several environmentally sustainable strategies. Urban designers often use principles of conservation and innovative infrastructure to manage stormwater effectively.
One principle involves integrating natural wetlands and lagoons within the development. These features act as natural buffers and filtration systems, allowing water to be naturally treated before leaving the property. Additionally, planting native vegetation and creating green spaces can promote water absorption and reduce surface runoff.
Proper infrastructure is also crucial. The use of permeable paving materials allows water to seep through surfaces and enter the subsoil rather than contributing to runoff. Installing rain gardens and bioswales can further aid in water management by capturing and filtering run-off. By maintaining a balance of impervious and permeable surfaces, and by utilizing natural and man-made water retention systems, run-off can be significantly reduced.
Moreover, developers can assess and optimize the slope and terrain to direct water flow towards these features. Creating retention ponds or reservoirs to hold excess water during peak rainfall events can also help in preventing immediate runoff and contributing to ground water recharge.