City of Phoenix Water and Sewer Design Manual: Navigating Hillside Development Standards

The City of Phoenix is renowned for its stunning natural beauty, with hilly and mountainous areas offering breathtaking views and a unique setting. However, developing land in these areas requires careful consideration of the special challenges and limitations posed by the terrain. In this article, we will delve into the City's water and sewer design manual's guidelines for hillside development, exploring the key requirements and considerations that must be taken into account.

Preliminary Plat Requirements

Before commencing any development project in a hillside area, a topographic map of existing terrain is essential. This map should display contour intervals accurately reflecting the natural variations and features of the land. The City's water and sewer design manual stipulates that all preliminary plats must adhere to these standards, regardless of parcel size or location.

Grade Requirements

When designing infrastructure for hillside developments, it is crucial to consider grade requirements. The manual recommends using five-foot intervals for grades greater than 15 percent and two-foot intervals for grades less than 15 percent. This ensures that the design takes into account the slope of the land and minimizes potential hazards.

Special Considerations

Hillside development presents numerous challenges, including increased hazards from rock falls, storm water runoff, geologic hazards, and limitations on vehicular travel. Additionally, steeply sloped lands can make it difficult to provide public services such as road maintenance, utility installation, and emergency response. It is essential to consider these factors when designing infrastructure for hillside developments.

Purpose of the Regulations

The purpose of the City's water and sewer design manual's guidelines for hillside development is to establish regulations that recognize the unique challenges posed by sloping land. By acknowledging these special considerations, the City aims to preserve the visual integrity and character of hillside areas while allowing reasonable development that is both safe and functional.

In conclusion, designing infrastructure for hillside developments in the City of Phoenix requires careful consideration of the City's water and sewer design manual's guidelines. From preliminary plat requirements to grade and special considerations, developers must take into account the unique challenges posed by sloping land. By doing so, they can ensure that their projects are both functional and safe, while also preserving the natural beauty and character of these areas.

City of phoenix water and sewer design manual