Hank’s Branch Sanitary Sewer Rehabilitation
| Client/Owner: | City of Thomasville, NC |
| Suggested Reference: | Morgan Huffman, City of Thomasville |
| Total Construction Cost: | $2,550,000 |
| Project Scope: | Systems Condition Assessments, Funding Applications, Grant/Loan Administration, In-situ Rehabilitation, Dig and Replace Point Repairs |
| Reviewing Agencies: | North Carolina Dept. of Environmental Quality North Carolina Department of Transportation |
| Completion Dates: | Preliminary Phase – Summer 2016 Phase I – Fall 2018 Phase II – Fall 2019 |
| Project Engineer: | Glynn Fleming, P.E. (AWCK Burlington Office) |
| Asst. Project Engineer: | Troy King, P.E. (AWCK Burlington Office) |
| Field Representative: | Roger Baldwin (AWCK Burlington Office) |
The Hank’s Branch Basin Sanitary Sewer Collection System and Outfall was constructed throughout the 1940s and 1950s and the City of Thomasville, North Carolina routinely experiences problems associated with Infiltration and Inflow, including sanitary sewer overflows, stoppages, and line breaks. In 2016 AWCK completed a preliminary evaluation of the overall condition and conveyance capacity of approximately 13,000 linear feet of existing pipe and over 60 manholes. Through smoke testing, televising, and visual inspection this study identified vitrified clay pipe and masonry manholes which exhibited reduced conveyance capacity, extensive structural degradation, and in many cases complete failure as among the root causes of recurring overflows. The resulting written report served to form the foundation from which a multi-phased funding, rehabilitation, and replacement project has been developed and is currently underway. A North Carolina Division of Water Infrastructure Funding Application for Phase I of the project, which includes cleaning and in-situ rehabilitation of approximately 5,000 linear feet of 18-inch outfall and 28 manholes, was submitted in April 2017. This Phase was awarded full loan funding totaling $1,150,000 through the Clean Water State Revolving Fund program. Engineering design is complete and construction will commence in the Summer of 2018. A North Carolina Division of Water Infrastructure Funding Application for Phase II of the project, which includes cleaning and both in-situ rehabilitation and complete replacement of approximately 8,500 liner feet of pipe and 45 manholes, was submitted in September 2017. This Phase was also awarded full loan funding totaling $1,400,000 through the Clean Water State Revolving Fund program. Engineering design is underway and construction is slated to commence in the Summer of 2019.
AWCK’s holistic design approach is assisting the City of Thomasville in minimizing disruptions within a highly urbanized area, minimizing costs, and accelerating scheduling to ensure compliance with a prior Consent Decree. Through serving the communities of North Carolina for six-decades and counting, our Engineers have garnered an innate understanding of how to solve some of the most challenging systems condition assessment and rehabilitation needs, and have successfully secured millions of dollars in grant and loan funding to ensure our clients’ visions become reality.
