The North Charleston Sewer District’s (NCSD) Watkins Road Force Main is a 24-in. cast iron pipe installed in the early 1970s. It is approximately 1,300 linear feet (LF) long and crosses beneath a railroad and under the marshes of the Ashley River. A leak was discovered in the marsh crossing and repaired in November 2018. During repair, video inspection showed its poor condition and additional small holes in the bottom of the pipe. It was laid mostly beneath the marsh, across a marsh island, and below the CSX Railroad in a tunnel, making access difficult. Replacement and rehabilitation of the pipe were considered. This is the case study of the rehabilitation.


Access the Conference Proceedings Paper on ASCE Library 

The North Charleston Sewer District’s (NCSD) Watkins Road Force Main is a 24-in. cast iron pipe installed in the early 1970s. It is approximately 1,300 linear feet (LF) long and crosses beneath a railroad and under the marshes of the Ashley River. A leak was discovered in the marsh crossing and repaired in November 2018. During repair, video inspection showed its poor condition and additional small holes in the bottom of the pipe. It was laid mostly beneath the marsh, across a marsh island, and below the CSX Railroad in a tunnel, making access difficult. Replacement and rehabilitation of the pipe were considered. This is the case study of the rehabilitation.


[Access the Conference Proceedings Paper on ASCE Library](https://ascelibrary.org/doi/10.1061/9780784483626.015) 

Watkins Road Force Main Rehabilitation

Papers from sessions of Pipelines 2021, held virtually August 3–6, 2021. Sponsored by the Utility Engineering and Surveying Institute of ASCE. The conference provides a forum for pipeline engineers and practitioners from all around the world to share their experiences in meeting the challenges of today's pipeline infrastructure. This premier industry event has become the conference of choice for utility and pipeline owners, design and consulting engineers, contractors, manufacturers, suppliers, students, educators, researchers, and pipeline professionals. The conference includes surveying as it relates to pipeline and utility projects. This event will provide a dynamic and inspiring venue for participants to share and gain valuable knowledge related to planning, designing, constructing, renewing, operating, managing and maintaining the pipeline assets.

[Paper Proceedings](https://doi.org/10.1061/9780784483602)

Conference DOI: https://doi.org/10.26226/m.6454f875c8d4320012b71046