Vendor's wishing to submit bids electronically should click on the "Vendor Registration" link to register for electronic bid submission. When And Where Are Bids Opened?Collin County Purchasing Department Collin County Administration Building 2300 Bloomdale Rd., Suite 3160 McKinney, TX 75071. These courses will help students to understand the entire process of how to successfully complete construction projects in a timely and cost effective manner. Bid Bond" for Construction, Collin County Courthouse Fire Sprinkler Pipe Replacement. Contract Number 2024-403. Collin County is soliciting information from qualified architectural firms. Offerors will show the ability to.