3.6 Mile Sewer Force Main Repair and Rehabilitation


3.6 Mile Sewer Force Main Repair and Rehabilitation

Authors:

Scott Teschky, City of Fort Lauderdale, Fort Lauderdale, FL USA
Jose Custodio, City of Fort Lauderdale
David Kinsella, Murphy Pipeline Contractors, Inc.

Abstract: The City of Fort Lauderdale, Florida, embarked on an ambitious $15M project in response to the failure of one their main transmission lines, a 30-inch diameter force main. The City utilized the design-build delivery method under an emergency purchase declaration to expedite the project and begin work immediately.

The work consisted of repairing and rehabilitating 19,400 linear feet of existing 30-inch diameter DIP force main utilizing Horizontal Directional Drilling, including a subaqueous crossing, and Swagelining. The piping used was High Density Polyethylene pressure pipe. The project was divided into four (4) phases as it spanned over several neighborhoods; each phase was under construction simultaneously to maximize schedule efficiency.

The scope of work for Phase I included rehabilitation of 3,200 linear feet of existing 30-inch diameter DIP forcemain including Swagelining, open cut, and HDD for the subaqueous crossing. The scope of work for Phase II included 1,500 linear feet of new HDD 30-inch diameter forcemain. The scope of work for Phase III included 6,400 linear feet of new HDD 30-inch diameter forcemain. The scope of work for Phase IV included Swagelining 8,300 linear feet of existing 30-inch diameter DIP forcemain.

The City was under tremendous pressure to complete the project as rapidly as possible. Having 3.6 miles of the system out of service resulted in surcharging and put a strain on other areas of the system. The entire project was completed in ten (10) months, even with Hurricane Irma arriving in September 2017.

Publication Date: 2019

Presented at:
NASTT’s 2019 No-Dig Show Chicago, Illinois
March 17-21, 2019 | Paper Number: MM-T6-01


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