Simulation of Combined Best Management Practices and Low Impact Development for Sustainable Stormwater Management¹

Abstract

Damodaram, Chandana, Marcio H. Giacomoni, C. Prakash Khedun, Hillary Holmes, Andrea Ryan, William Saour, and Emily M. Zechman, 2010. Simulation of Combined Best Management Practices and Low Impact Development for Sustainable Stormwater Management. Journal of the American Water Resources Association (JAWRA) 1‐12. DOI: 10.1111/j.1752‐1688.2010.00462.x Abstract: Urbanization causes increased stormwater runoff volumes, leading to erosion, flooding, and the degradation of instream ecosystem health. Although Best Management Practices (BMPs) are used widely as a means for controlling flood runoff events, Low Impact Development (LID) options have been proposed as an alternative approach to better mimic the natural flow regime by using decentralized designs to control stormwater runoff at the source, rather than at a centralized location in the watershed. For highly urbanized areas, LID practices such as rainwater harvesting, green roofs, and permeable pavements can be used to retrofit existing infrastructure and reduce runoff volumes and peak flows. This paper describes a modeling approach to incorporate these LID practices in an existing hydrologic model to estimate the effects of LID choices on streamflow. The modeling approach has been applied to a watershed located on the campus of Texas A&M University in College Station, Texas, to predict the stormwater reductions resulting from retrofitting existing infrastructure with LID technologies. Results demonstrate that use of these LID practices yield significant stormwater control for small events and less control for flood events. A combined BMP‐LID approach is tested for runoff control for both flood and frequent rainfall events.

The effects of low impact development on urban flooding under different rainfall characteristics

“…Therefore, a combination of various LID techniques would be more effective than a single LID technique for urban flood control considering the entire spectrum of storm events. Damodaram et al, 2010;Liong et al, 1991 Q2 . Fig.…”

Distributed System of Dams for Flood Protection of Urban Land to Ensure Sustainable Development

“…This approach can solve problems with population growth, urbanisation and climate change which represent significant pressures on sustainable urban development, requiring flood events managers to consider a wider array of management options that account for economic, social and environmental factors using modeling in GIS environment [25][26][27][28][29][30][31]. …”

Evolutionary and Holistic Assessment of Green-Grey Infrastructure for CSO Reduction

“…For instance, Damodaram et al [30] apply a combination of solutions in a highly urbanized watershed, finding that decentralized measures are good to cope with small storms, while centralized solutions perform better in case of larger events. In a later study, Damodaram et al [51] present a methodology to select the location of solutions, based on simulation and single objective optimization.…”

“…According to them, LID techniques preserve pre-development hydrology conditions and apply source control through small scale and decentralized solutions for runoff management, while BMPs are defined as practices and structures more centralized and oriented to runoff pollution control [18,[28][29][30][31]. According to Fletcher et al [31], the term GI is used equivalently with BMPs and LID, and it is a concept that goes beyond stormwater management, influencing urban planning and maximizing benefits of their implementation.…”