View Public Works' open solicitations, and learn more about how to register as a supplier and submit a bid or proposal. Click here for construction projects currently out to bid.Click here for Request for Proposal projects currently out for proposals. With these goals in mind, we are seeking Proposals to perform Contracted Services in the seven categories of areas described below. It is expected to take four years to complete the preliminary design. Please complete the Contact Information Form to be kept updated about the project. A brief narrative describing the proposed project. Preliminary design is currently underway. It includes detailed engineering and environmental studies of the preferred alternative to minimize impacts. Allegheny River Green Boulevard.