UNDERPASS STORAGE HOW TO

It is written especially for students on urban watershed courses, and also for those studying urban planning, landscaping, water resources, hydrology and hydraulics. Unlike other books, which focus on extreme events, this book covers hydrologic designs for both extreme and frequent events, and reflects the latest revolution in stormwater LID management, and takes a quantitative as well as a qualitative approach.PowerPoint® presentations and Excel® computer models are provided to follow and build on the exercises in the book. It outlines design procedures using examples, spreadsheet models, photos, and real-world design examples. It covers the principles of hydrology and drainage, low-impact-development (LID) designs, computer modelling techniques, the evaluation of existing systems, and planning for both new development and urban renewal. This new text focuses on green methods and modelling techniques.

UNDERPASS STORAGE HOW TO

This paper provides examples using long-term continuous rainfall data recorded at the City of Denver, Colorado and the City of Beijing, China to illustrate how to apply the empirical approach, theoretical methods, design charts, and guidance on the selection of storage volumes for stormwater LID designs.Įffective urban drainage to manage stormwater and control flooding depends on good engineering, especially when an environmentally sustainable approach is being applied. Two design charts, one for the US continent and the other for mainland China, are produced, respectively, using the runoff capture methods.

Both methods provide the identical water quality capture volume (WQCV) when the runoff capture rate is set to be the 80th percentile of either rainfall or runoff population. Both methods provide identical assessment of the runoff capture rate for a selected basin storage volume.

In this paper, both runoff event and volume capture methods are derived using the exponential model and solved for a selected runoff capture rate.

Among many innovative approaches, the concept of runoff capture has been widely accepted and evaluated with data analyses and mathematical models. The key issue involved in the revolution of stormwater management from quantity to quality control has been the selection of the design event. Efforts under stormwater best management practices have led to low-impact development (LID) concepts for innovative stormwater designs.

Underpass storage