San Leandro Marina Alts Study_Final

Home

4. Alternatives While it scores close to the Aquatic Park Alternative, the Nature Park Alternative appears to be the most constrained alternative. While this alternative would only require permits for construction, the amount of in -bay fill would pose problems for the resource agencies, specifically BCDC. As previously mentioned, if this Alternative produces habitat for listed species, the public access features, such as the pedestrian boardwalks may result in a policy conflict between BCDC and USFWS and CDFG, although the chances of suitable habitat developing can be diminished by restricting the height of the high marsh islands. In conclusion, each of the three alternatives have constraints related to obtaining the necessary authorizations from the state and federal resource agencies. There is not a significant difference in constraints between each alternative, however, each alternative has somewhat separate and distinct constraints depending upon activity. At the conceptual level, permitting itself would not pose the greatest constraint as each alternative is permittable. However, when agency approval timelines are included, costs for securing permits increases and ultimately, cost would become a greater constraint in regard to obtaining state and federal authorizations. 4.5 Relative Initial and Long-term Maintenance Costs Notes on Information in Tables This section provides order -of -magnitude projections of probable costs and potential revenues for the alternatives described in Section 2 and considered throughout this report. Also included are costs associated with the "No Action" alternative. The projections are one of the components intended to help the City compare and contrast the relative costs and benefits of various options for the future of the San Leandro Harbor Basin. The following items have been excluded from the analysis: • Escalation costs; • Life cycle replacement costs for new features that may be constructed; • Removal of hazardous material, if any; • Work outside the study area boundary. The study area is defined by the existing walkway around the perimeter of the Harbor Basin. Park and public amenity proposals identified in the Discussion Plan by Cal -Coast, or any other redevelopment options outside the perimeter walk, are not included; and • Major infrastructure upgrades (these costs are assumed to be integrated into the overall San Leandro Shoreline area redevelopment plan). The information contained in this document, including the quantity takeoffs on which many costs are based, is intended to show how the probable cost is derived. Costs and revenues indicated are conceptual and for planning purposes only. It should also be noted: All costs and revenues are presented in February, 2011 dollar values. San Leandro Marina Harbor Basin 4-18 ESA / 210461 Alternatives Study March 2011