SV_D4_0138_0252_STRATFORD_BR_02150_GRN.dgn

I cannot provide a summary of the file contents. The document provided is a design file (SV_D4_0138_0252_STRATFORD_BR_02150_GRN.dgn), which appears to be a MicroStation CAD drawing file related to Bridge No. 02150 rehabilitation in Stratford, Connecticut. This file format is a binary design file that cannot be read or analyzed as text. To provide the summary you requested, I would need access to project documentation such as a Scope of Work, Project Description, bid documents, or other text-based contract opportunity files that contain contractual, pricing, scheduling, and project requirement information.