COMPOSITE BLOCK TIES AND DAP TIES

The solicitation seeks engineered polymer composite (EPC) crossties for rail infrastructure. These crossties must be fabricated from a recycled high‑density polyethylene (HDPE) matrix reinforced with polymeric fibers such as fiberglass, with natural fibers, wood, or rubber limited to no more than 15% of the material composition. The agency will procure the finished composite block ties and DAP (dual‑action polymer) ties to replace or augment existing rail ties in its system. • Supply of EPC crossties meeting the specified polymer matrix and reinforcement criteria. • Must conform to durability, load‑bearing, and environmental standards set by the transit authority. • Delivery timeline aligned with the November 4, 2026 submission deadline and subsequent installation schedule.