Addendum 5 – Park Substation Information

This addendum to SEPTA's Traction Power Substation Rehabilitation Program – Contract 5 provides supplemental information specifically for the Park Substation, one of four substations (Broad, Loudon, Park, and Castor) included in this two-step procurement. The document clarifies technical details and site conditions for bidders preparing qualifications for the July 15, 2026 RFQ submission deadline. This addendum addresses specific questions and provides additional project information related to the Park Substation's existing conditions, equipment specifications, and rehabilitation requirements that must be incorporated into final design and construction phases of the 2,035-calendar-day project.

The addendum confirms equipment ratings, spatial constraints, and operational considerations unique to the Park Substation that affect phased construction sequencing to maintain continuous traction power service during rehabilitation. Bidders must account for this site-specific information when developing their project approach, staging plans, and technical qualifications demonstrating their understanding of the work scope. This information supplements the 50% design specifications and drawings that form the basis for the design-build contract, which requires completion of final design and construction of electrical equipment replacements (13.2kV and 12kV switchgear, DC rectifiers, transformers, protective relays, batteries), SCADA integration, structural upgrades, and environmental remediation including asbestos removal, lead paint abatement, and contaminated soil remediation at all four substations.