Relocation of Storm Sewer at West 207th Street Yard

• Client: New York City Transit
• Location: New York, NY

Project Overview

Our firm was engaged to undertake the intricate design and relocation of the existing New York City Department of Environmental Protection (NYCDEP) interceptor sewer, which traverses the extensive W 207th Street New York City Transit (NYCT) Rail Yard, the second largest rail yard in New York City. The sewer relocation initiative spans from W 215th Street to the northern vicinity of W 207th Street, following the New York City Department of Transportation (NYCDOT) Right of Way (ROW) along 10th Avenue.

Given the complex and congested nature of the project site, which included the presence of the elevated subway train, heavy traffic along 10th Avenue, and numerous utility considerations, the most viable solution involved implementing microtunneling operations for the interceptor sewer installation.

Our team of civil engineers collaborated closely with geotechnical experts to precisely determine the optimal placement of eight microtunneling pits. These pits were strategically designed, taking into account their size, shape, and specific constraints associated with each one. Furthermore, our dedicated team completed the structural design for numerous manhole structures, which reached depths ranging from 20 to 30 feet. In addition, we worked in tandem with various user groups within NYCDEP to design and position two regulator manholes, ensuring seamless integration and functionality within the overall sewer system.