The City of Marathon is seeking a contractor for the Deep Injection Well Phase IIIA Transmission Main Project, a critical infrastructure development located in Monroe County, Florida. The procurement involves installing approximately 5,010 linear feet of 16" DR 11 HDPE piping using directional drill methodology, beginning at the Robert H. Dopps Bridge on Coco Plum Drive and extending to the Area 6 Wastewater Treatment Facility at 100 Avenue I. The project specifically requires procurement and installation of five 16" plug valves and associated fittings, with installation techniques carefully selected to navigate the complex existing utility infrastructure in both city and Florida Department of Transportation right-of-way areas. The contract opportunity was posted on July 22, 2025, with proposals due by September 4, 2025. Key deliverables include comprehensive piping installation, valve placement, and adherence to detailed Contract Plans, Contract Documents, and Technical Specifications. Contractors will need extensive experience in municipal infrastructure projects, particularly in directional drilling techniques and utility navigation in challenging urban environments. While specific set-aside designations are not explicitly detailed in the provided documentation, the project's technical complexity suggests a need for experienced municipal infrastructure contractors with specialized drilling capabilities. The project's location in Monroe County and proximity to Miami City indicates potential local contractor preferences. The directional drilling requirement and intricate utility landscape suggest a potentially significant project budget, though exact award values are not specified. Contractors will need to demonstrate technical proficiency in underground utility installation, particularly in environmentally sensitive coastal areas. The use of HDPE piping and directional drilling techniques implies an emphasis on minimal surface disruption and environmental consideration. Interested bidders should carefully review the full Contract Documents and Technical Specifications to understand the complete scope of work, required qualifications, and potential integration challenges with existing municipal infrastructure.