This project will build upon and extend a successful restoration project on this site. It will extend the riparian area and floodplain of Alhambra Creek, install a protective berm with a robust spillway, install a vegetated swale for routing potential overflows to a parking lot configured to function as a detention basin, convert the parking lot from asphalt to a pervious surface with vegetated filter strips, install backflow preventors on existing storm drains, create and extended a native-plant-rich riparian zone with a self-guided nature trail.
The primary purpose of this project is to improve flood protection for the Martinez Unified School District's Martinez Adult Education Campus and for the larger community. This need has been demonstrated by the estimated $1 million in flood damage from the 2005 New Year's Eve flood. By approaching this issue from a watershed system perspective and with an understanding of stream function, this project will also provide water quality, habitat and educational benefits.
Ecosystem Restoration,
Environmental and habitat protection and improvement,
Flood management,
NPS pollution control,
Recreation and public access,
Storm water capture and management,
Water quality protection and improvement,
Watershed planning