![]() Phase I was completed by May of 2015, at which point the project area was open to the public. By 2013, following a competitive selection process for contractors, construction on Phase I of the Paseo de las Iglesias project had begun. Urban growth within the floodplain of the Santa Cruz River further impacted the struggling ecosystems.īy the early 20th century, a concerted effort to restore a 7.5-mile stretch of the Santa Cruz River was undertaken by Pima County residents, the Pima County Regional Flood Control District, and the U.S. Hard-scaped engineering of the Santa Cruz River, often intended to control or mitigate flooding and erosion, also contributed to the rapidly declining health of riparian areas. This is consistent with trends across Arizona, where 95 percent of riparian areas have been destroyed, largely due to diversion. Within the 7.5-mile study area, sustained flows from the Santa Cruz largely ceased, devastating the riparian landscape. However, increasing demand for water greatly impacted sustained surface flows. For a time, the river also supported a booming population. Until the early 20th century, the Santa Cruz River supported a vast and diverse riparian ecosystem. Strategies: Daylighting rivers and streams, Floodplain restoration, Mapping, Floodwater detention, Waterfront park, Green parking lots.Location: Tucson and Pima counties, Arizona.The project fuses many strategies including: significant ecosystem revitalization, on-site water reclamation and storage, hybrid green/gray erosion control, historic programming, and public access and recreation. ![]() Recent efforts on the part of the Pima County Regional Flood Control District, the U.S. Army Corps of Engineers, and local activists and stakeholders have sought to revitalize a 7.5-mile historic stretch of the Santa Cruz River. The decline of this vital ecosystem, as well as increasing erosion, further worsened flood risk. Throughout the 20th century, water that once supported a dense riparian ecosystem was diverted for a rapidly growing local population. Severe environmental degradation along the Santa Cruz River and mitigation of rare but often severe flooding are the primary motivating factors in the Paseo de las Iglesias restoration project. Santa Cruz Riverbank and Ecosystem Restoration, Pima County, Arizona ![]()
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