Craft persuasive bid proposals for construction projects with this comprehensive guide. Explore key components, from project overview to pricing details.The Contractor will maintain at the site for the Owner one record copy of the Drawings,. Learn how to write a construction proposal that wins business. If the Construction Manager submits a bid, then the Construction Manager must submit the bid to the Tarrant County Purchasing Department Contracts. Invitations to bid (ITB), requests for bids (RFB) and pre-qualification notices in Texas, Tarrant County, page 1. Plans are required for this project.