One thought on “Report: San Antonio Behind on ‘Green’ Stormwater Infrastructure

  1. Iris, thank you for your Rivard Report titled “San Antonio Behind on ‘Green’ Stormwater Infrastructure”. You state that that the city of San Antonio (City) ranks behind Austin in low-impact development for good management of storm water. (Austin 90%, San Antonio 65%, Fort Worth 60%, Houston 50%, and Dallas 40% in a recent study). You state “Low-impact development features are architectural and irrigation elements that allow buildings to retain and filter rainwater rather than pass off often-contaminated water to already-strained…”

    Low impact development in existing residential neighborhoods is also very important. In 2009, after a new home was built in a back yard of an existing home, off N Vandiver St near Knight Robin Drive, storm water went into the swimming pool of a neighbor downhill from the new home. Storm water in existing neighborhoods is designed to flow to back yards and to front yards. To reduce future storm water diversion and possible pollution, in existing residential neighborhoods, the City needs to revise or replace the new Section 35-515(h)(1) of City Ordinance.

    New Section 35-515(h)(1) of City Ordinance allows building of new homes in back yards in existing neighborhoods, in large residential lots. The new backyard lots are called flag lots. Many more back yard homes will be built in San Antonio in the future because there are many large lots in San Antonio existing neighborhoods. A simple solution is for the City to replace Section 35-515(h)(1) with the old City Ordinance, which required any new lot to have 40 feet of street frontage. New flag lots on N Vandiver St. and Knight Robin Dr. have 15 feet and 20 feet street frontage. These narrow street frontages serve as driveways to access the back yard homes.

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