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DRAFT | 2 march 201825IV COST FORECASTThe costs of creating an urban park vary widely based on site conditions, design, program and use. Preliminary construction cost forecasts presented in Table 1 were developed from a range of speculated park improvements, and are general cost assumptions at the very preliminary stages of the study. The baseline understanding of typical park improvement components and rough cost per square footage were derived from a recent Redwood City dog park development which yielded a $35 per square foot cost. Approximate baseline infrastructure improvement costs include: hardscape removal and replacement, storm drain relocation and installation, general landscaping, irrigation improvements, slight re-grading, and minor utility adjustments. The typical urban park cost of $65 per square foot was gathered from Jamison Square in Portland, Oregon, which includes an interactive water feature, play area, stone terrace, mature trees, and vendor areas. A large-scale intensive urban park cost forecast was taken from the recent City of San Jose St. James Park competition that yielded a cost of $110 per square foot for extensive improvements that included numerous site structures, sculptures, interactive water feature, and a large playground. It is recommended that a contractor or cost estimator review and advise on preliminary probable cost forecasts provided.Note: 1. Site areas are provided by SERA Architects and are total approximate site areas, which include developable area only. 2. Approximate park area for Site 02: LIbrary Campus/ Roselli Park is assumed to exclude existing buildings. 3. Forecasted cost for Site 03: City Hall/ Main Street shown does not include creek daylighting. Refer to Table 3 for additional potential costs related to daylighting. 4. Refer to Tables 2a-d for additional potable water storage cost information. 5. Cost for the Library site assumes a third of the overall site (52,000sf) would be developed with park improvements. BASELINE COST ASSUMPTIONS & CONSIDERATIONS7.B. - Page 30