Sunol and Niles Dams Removal

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The aging Sunol and Niles dams, built in 1900 and 1841 respectively, became a public safety concern, and acted as fish passage barriers within Alameda Creek, located southeast of San Francisco Bay.

ESA prepared the environmental impact report (EIR) and associated technical studies, and prepared and secured all regulatory permits for removal of the dams. As part of the effort, our team facilitated agency coordination and prepared technical studies for biological and cultural resources, as well as the development of a comprehensive mitigation monitoring program to minimize impacts on special-status species caused by removing the dams. ESA's team prepared the archeological data treatment plan, the Historical American Engineering Report for Niles Dam, and the Memorandum of Agreement between the Corps of Engineers and the State Historic Preservation Office. We continue to provide post-construction compliance monitoring services as required by the EIR, mitigation monitoring program, permits and authorizations issued for the project.

ESA coordinated with regulatory agencies, prepared environmental documentation, secured permits, and continues to implement a mitigation monitoring plan to restore this critical fish passage.

Specialized Services

  • California Department of Fish and Game streambed agreements
  • Clean Water Act
  • Compliance audits and tracking
  • Cultural resources management plans
  • Design specifications and construction bid packages
  • Endangered Species Act
  • Environmental compliance documentation
  • Environmental impact reports
  • Environmental scoping meetings
  • Fish passage design
  • Fisheries
  • Fisheries habitat enhancement
  • Geomorphic assessments
  • Habitat restoration and enhancement
  • High-quality cartographic mapping
  • Historical investigations, documentation, and plans
  • Monitoring
  • National Historic Preservation Act (NHPA)
  • Native American, ethnographic, and archaeological studies
  • Permitting assistance
  • Project website; social media management and communication materials development
  • Section 106 compliance and documentation
  • Sediment transport studies
  • Special status species surveys and inventories
  • US Army Corps of Engineers
  • US Fish and Wildlife Service
  • Wetland assessments
  • Wetland delineations
  • Wetland restoration
  • Worker education programs