DESIGN-BUILD PROPOSAL FORM. Pre-construction Design Services.All proposals, plans, Project Bids (EBSX) files and addenda are also available on the Office of Contracts web site. The Proposal must contain the following documents: 1. Cuyahoga County Department of Public Works Construction Proposal Form;. 2. All proposals or bids shall be signed and submitted on the printed blanks provided for that purpose and bound herewith.