Specifications include, but are not limited to: Scope of Services The stormwater infrastructure scope of services should include the following information and analysis. Alternative services and deliverables may be proposed on evidence of the need to meet the purpose of the RFQ. RFQ responses that do not include all these will not be considered. Project 1: Assessing Nature-Based Solutions to Mitigate Flood Impacts along the Cove River Provide an environmental engineering study of the Cove River basin, which is tidally-influenced. The Cove River originates in Orange and flows through West Haven before discharging into Long Island Sound at Sea Bluff Beach by Bradley Point. Dams along the river form the Maltby Lakes, reservoirs of the South Central Connecticut Regional Water Authority (RWA), and Phipps Lake. The study should evaluate both water quality and quantity, as large parts of the city flood from the Cove River during large storm events, including property erosion concerns from bodies of water that feed into the Cove River. The study shall include: • Conducting alternatives analysis and targeted public engagement to identify appropriate nature-based solutions along the Cove River. • Advancing efforts to enhance connectivity between headwaters and coast, between channel and floodplain, and to restore natural flow patterns, flood mitigation capabilities and habitats. • Providing considerations for stormwater and drainage conveyance, watershed management, hazard mitigation, green stormwater infrastructure, stormwater control measures, and stormwater asset management. • Providing engineering analysis of key stormwater features such as stream stabilization and restoration. • Identifying climate vulnerabilities. • Performing field investigations. • Providing drainage system modeling and analysis Project 2: Sanford Street Basin Stormwater Study This climate resilience study will be the first step in the design process to address the impacts of climate-related hazards within the Lydia/Sanford area, which is prone to flooding during heavy rain events. Develop preliminary designs for reducing flooding in the Sanford Street Basin, in the Allingtown District, including potentially new piping, culverts, structured wetland, and a new outfall path to the Cove River. The study will include: • Conducting alternatives analysis and targeted public engagement to identify appropriate nature-based solutions in the Lydia/Sanford area. • Evaluating ways to reduce the flow of potentially contaminated runoff water from roads to protect Cove River and downstream wetlands. • Identifying climate vulnerabilities. • Performing field investigations.
