Memorandum_of_Geologic_Inspection_1965.pdf

This is a Memorandum of Geologic Inspection dated 1965 related to the City of Napa's Request for Qualifications for Conn Dam Stability Assessment, Spillway Improvements, and Feasibility Alternatives Study. The document serves as a historical geologic record for Conn Dam in California and provides baseline information regarding the dam's geological conditions as of 1965. The memorandum documents observations and findings from a geologic inspection conducted during that period, which would inform current dam safety assessments and stability evaluations. This historical inspection record is foundational documentation for the current project, which requires qualified multidisciplinary engineering consulting firms to conduct comprehensive geotechnical analysis, dam stability assessments under static and seismic conditions, and feasibility studies for spillway improvements. The project is structured in three phases: Phase One requires generation of a geotechnical data report for submission to California's Division of Safety of Dams by December 31, 2028; Phase Two involves assessment of dam stability including deformation estimates; and Phase Three develops a feasibility alternatives analysis addressing identified deficiencies.

The 1965 Memorandum of Geologic Inspection provides essential historical baseline data supporting regulatory compliance with the California Division of Safety of Dams and coordination with the U.S. Army Corps of Engineers on federally authorized flood risk reduction studies. The City of Napa has secured inclusion of Conn Creek Dam in the 2022 Water Resources Development Act, enabling federal funding participation for design and construction phases. The Qualifications-Based Selection process follows Brooks Act principles and 2 CFR Part 200 federal procurement requirements, ensuring qualified consultant selection is based on demonstrated capability rather than cost competition during the initial phase.