AS-BUILT-433B_A3-3.dgn

I am unable to provide a summary of this file. The file "AS-BUILT-433B_A3-3.dgn" is a MicroStation design file (a proprietary binary format used for CAD drawings and engineering designs), not a document containing contract opportunity information such as a Scope of Work, Project Description, Supporting Exhibit, Addendum, or Bidders Conference Attendee List. The file format does not contain readable text or structured contract data that can be extracted and summarized in the manner you've requested. To provide the analysis you need, please provide a readable document file such as a PDF, Word document, or text file that contains the actual contract opportunity details.