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The TOHO Water Authority (TOHO) has been acquiring and integrating water utility systems in Osceola County near Orlando, FL. As part of that growth, a 24-inch interconnect in Kissimmee, FL was required to provide adequate redundancy in the system. The route of the 24" water main required a key crossing at the Florida Turnpike. After evaluation of alternatives, the design team including CPH, Inc. and TOHO concluded on a single horizontal directional drill (HDD) installation as the most practical solution to cross the highway. The FDOT Turnpike office required encasement for the pipeline within their right-of-way, including minimum depth requirements, which in turn drove the required size of the casing, bore hole, and ultimately the depth required for the crossing.
"24" DR18 Fusible C-905® carrier pipe and 30" DR21 Fusible PVC® casing offered the only practical pipe material option for this specific application", commented project engineer, Jay Morris, P.E.. Jay added, "The high hydrostatic design basis (HDB) of Fusible PVC® enabled us to minimize the OD of the casing pipe and the corresponding depth of the bore alignment, in accordance with FDOT guidelines".
|Pipeline Details and Project Summary|
|Project:||Osceola Parkway - Florida Turnpike WM Crossing|
|Pipe Size:||30" DR21 FPVC® Casing, 24" DR18 Fusible C-905® Carrier|
|Pressure Test:||Casing - 65 psi; Carrier - 150 psi|
|Installation:||Casing Pipe - HDD, Carrier Pipe - Slipline|
|Owner:||TOHO Water Authority|
|Engineer:||CPH Inc. - Jay Morris, P.E.|
|Contractor:||Andrew Sitework, LLC - Ralph Andrew|
|HDD Contactor:||Andrew Sitework, LLC - Ralph Andrew|
|UGSI Contact:||Robert Tatum (941) 320-2440 email@example.com|
Ralph Andrews, the GC on the project said, "the technical, fusion and construction support from Underground Solutions, Inc. (UGSI) contributed to smooth and straight forward project execution". "We had a tight construction schedule and we completed the project on schedule, he added.