This chapter provides information on methods and recommendations for plant materials
to be used for the vegetation or revegetation of drainage facilities within the San
Antonio area. Establishment of a robust vegetative cover is critical to the proper
functioning of drainage facilities, such as grass-lined channels, earthen detention
basins, earthen retention ponds, and wetlands. Vegetation serves multiple purposes,
including stabilization of facilities, prevention or reduction of erosion, removal
of pollutants in storm water runoff, and improvement of wildlife habitat. The modified
subtropical climate, prevalence of introduced weeds or Johnson Grass, and variety
of soil types encountered in the San Antonio area virtually mandate the prompt implementation
of a temporary and/or permanent revegetation plan to meet TPDES requirements.
During the design and construction processes and thereafter, existing vegetation should
be maintained and preserved intact in order to minimize the effects of construction
activities and the changes to the flow characteristics of the existing waterways.
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