Why Low Impact DevelopmentMarch 14, 2016
Museum Reach
Mission Reach
“States report that nonpoint source pollution is the leading remaining cause of water quality problems.”
US EPAhttp://www.epa.gov/owow_keep/NPS/whatis.html
Negative Impacts: Museum Reach, Southern Basin Erosion
Increased Flow = Increased Bacteria
A Sustainable Solution:Low Impact Development (LID)
• A land planning and engineering design approach that manages stormwater runoff as close as possible to the source.
• Emphasizes use of on-site natural features.
• Attempts to match pre-development hydrology.
• Polishes water for quality
How does LID work?
Source: Bender Wells Clark Design
Source: Tetra Tech
Source: Bender Wells Clark Design
Source: Tetra Tech
Source: Tetra Tech
Source: Tetra Tech
Distributed Systems
Pollutant Removal
Pollutant removal depths in a bioretention area.
Solutions for retrofits: highly urban area
Bioretention Green Roof Planter Box
Planter Box Stormwater Cisterns Stormwater Cisterns
Every Drop Counts.
Bioretention Bioswales Permeable Pavements
Planter Boxes Tree Wells Stormwater Cisterns
Solutions for retrofits: tight development envelope
Stormwater Wetlands Permeable Pavement Parking Lot Bioretention
Bioretention at the curb Sand Filter Filter Strips
Solutions within a spacious setting
BMPs on SARA Sites
SARA Operations Center, SA, TX
SARA Environmental Center, SA, TX
SARA Operations Center, SA, TX
SARA Operations Center, SA, TX
SARA Operations Center, SA, TX
SARA Operations Center, SA, TX
The LID Toolbox:San Antonio River Basin LID Technical Design Guidance Manual
Bioretention Rainwater Capture Bioswales
Vegetated Filter Permeable Pavement Green Roof
Sand Filter Planters Constructed Wetland
For more information about LID design
Visit our website at: https://www.sara-tx.org
For the design guidance manual, type LID in the search bar.