View Public Works' open solicitations, and learn more about how to register as a supplier and submit a bid or proposal. A brief narrative describing the proposed project.Allegheny River Green Boulevard. The Allegheny Green River Boulevard is a long-term plan to connect neighborhoods along the south shore of the Allegheny River. ACCA has issued a Request for Proposals for the redevelopment of 115 East Jefferson Street in Allegheny City Central. Deadline: Monday, September 10, 2018.