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A platform for research: civil engineering, architecture and urbanism
The Norris Cut Utility Relocation Project—Updating Aging Infrastructure for System Resiliency with Design-Build Methods
In 2014, the Miami Dade Water and Sewer Department (MDWASD) awarded Nicholson Construction Company a $72.1 million design-build contract to replace an existing 54-in. diameter pre-stressed concrete force main that runs from the Virginia Key Central District Wastewater Treatment Plant (CDWWTP), under the Biscayne Bay Norris Cut, to Fisher Island. The existing force main was previously subjected to a condition assessment which revealed structural deficiencies in the prestressed concrete pipeline. The project connects to a previous phase of work and completes the sewer connection from Miami Beach to the CDWWTP. The project’s main goals are to improve the reliability of a major sewer collection corridor within the MDWASD and to increase the resiliency of MDWASD’s water and sewer system. Design-build procurement was chosen as the preferred delivery method and Nicholson Construction Company was awarded the contract with Arup as their lead designer. Woolpert joined the Arup team as the primary pipeline designer. In order to install the 5,300 ft of 60-in. internal diameter fiberglass reinforced polymer mortar pipe below the bottom of Biscayne Bay at Norris Cut, a tunnel boring machine (TBM) was launched from a 42-foot diameter and 89-foot deep secant pile shaft on Virginia Key and a nine and half foot diameter precast segmentally lined tunnel was constructed as the TBM bored towards a 28-foot diameter and 72-foot deep soil-cement mixed retrieval shaft on Fisher Island. The complex subsurface geotechnical conditions of South Florida made this project a challenging one for the shaft designs, TBM design, final tunnel design and the deep subsurface construction. In order to make the final connection to the treatment plant on Virginia Key, an additional 2,700 ft of prestressed concrete cylinder pipe was installed by open cut methods. The MDWASD required no interruption to service would occur and to minimize the risks of sewer spill at the treatment plant and/or raw sewer discharge to the ocean outfall. Therefore the final connection was made to the treatment plant by means of a 36-in. HDPE force main as temporary bypass, through a direct connection to an existing sewer outlet outside the grit chamber of the CDWWTP. The success of the design-build project was largely a result of an open, trusting relationship between the design-build constructor, design-build designer, and MDWASD’s construction inspection and management team. The design-build approach lead to a cost-effective design, efficient construction, and a finished product that met the needs of the MDWASD.
The Norris Cut Utility Relocation Project—Updating Aging Infrastructure for System Resiliency with Design-Build Methods
In 2014, the Miami Dade Water and Sewer Department (MDWASD) awarded Nicholson Construction Company a $72.1 million design-build contract to replace an existing 54-in. diameter pre-stressed concrete force main that runs from the Virginia Key Central District Wastewater Treatment Plant (CDWWTP), under the Biscayne Bay Norris Cut, to Fisher Island. The existing force main was previously subjected to a condition assessment which revealed structural deficiencies in the prestressed concrete pipeline. The project connects to a previous phase of work and completes the sewer connection from Miami Beach to the CDWWTP. The project’s main goals are to improve the reliability of a major sewer collection corridor within the MDWASD and to increase the resiliency of MDWASD’s water and sewer system. Design-build procurement was chosen as the preferred delivery method and Nicholson Construction Company was awarded the contract with Arup as their lead designer. Woolpert joined the Arup team as the primary pipeline designer. In order to install the 5,300 ft of 60-in. internal diameter fiberglass reinforced polymer mortar pipe below the bottom of Biscayne Bay at Norris Cut, a tunnel boring machine (TBM) was launched from a 42-foot diameter and 89-foot deep secant pile shaft on Virginia Key and a nine and half foot diameter precast segmentally lined tunnel was constructed as the TBM bored towards a 28-foot diameter and 72-foot deep soil-cement mixed retrieval shaft on Fisher Island. The complex subsurface geotechnical conditions of South Florida made this project a challenging one for the shaft designs, TBM design, final tunnel design and the deep subsurface construction. In order to make the final connection to the treatment plant on Virginia Key, an additional 2,700 ft of prestressed concrete cylinder pipe was installed by open cut methods. The MDWASD required no interruption to service would occur and to minimize the risks of sewer spill at the treatment plant and/or raw sewer discharge to the ocean outfall. Therefore the final connection was made to the treatment plant by means of a 36-in. HDPE force main as temporary bypass, through a direct connection to an existing sewer outlet outside the grit chamber of the CDWWTP. The success of the design-build project was largely a result of an open, trusting relationship between the design-build constructor, design-build designer, and MDWASD’s construction inspection and management team. The design-build approach lead to a cost-effective design, efficient construction, and a finished product that met the needs of the MDWASD.
The Norris Cut Utility Relocation Project—Updating Aging Infrastructure for System Resiliency with Design-Build Methods
Carroll, Terrence (author) / Whidden, William (author) / Ramos, Eloy (author) / Li, Lin (author) / Fernandez-Cuervo, Victor (author)
Pipelines 2017 ; 2017 ; Phoenix, Arizona
Pipelines 2017 ; 145-155
2017-08-03
Conference paper
Electronic Resource
English
Efforts to Build Infrastructure Resiliency to Future Hydroclimate Extremes
| British Library Conference Proceedings | 2021
Engineering Index Backfile | 1940