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Flatiron West, Inc.

Benicia, CA 94510

Company Info

  • Est. 1947
  • Size 500+ Employees
  • Annual Vol Undisclosed

Featured Project Return to Projects List

Rahway Valley Sewerage Authority Wastewater Treatment Plant

Project Information

Project Location:
Rahway, NJ
Approx Contract:
$100,000,000
Status:
Completed - Feb 2009
Structure Type:
Sewage / Water Treatment Plant

Scope Of Work

E.E. Cruz expanded Rahway Valley Sewerage Authority Wastewater Treatment Plant’s sewage capacity from 63MGD to 105 MGD and upgraded and replaced the plant’s outdated systems. All work was performed while maintaining plant operations by utilizing temporary SOE systems which included the installation of sheet piling and soldier piles, steel wales and struts, and tiebacks. The construction consisted of major upgrades to the primary, secondary, and tertiary treatment facilities. Upgrades to these facilities consisted of the construction of a new headworks facility, construction of a new primary settling tank, upgrades to the aeration system, construction of new final settling tanks, construction of a new effluent sand filter facility, construction of a new UV disinfection chamber, construction of a new effluent pump station, and the construction of a new cascade aeration station. In addition, E.E. Cruz was also responsible for constructing a new rotary drum building.

Key project elements include:

Pumping station construction

Maintenance of sewer plant operation throughout project

Mass excavation

Installation of sheet piles, wales, and struts

Construction of concrete caissons

Construction of tie-back temporary walls

Pile Installation

Sensitive equipment installation

Installation of over 110 pumps ranging from 5-700 HP

Structural steel installation

Miscellaneous architectural finish work

Installation of specialty equipment for primary, secondary and tertiary water treatment

Installation of UV disinfection treatment system

Implementation of value engineering for owner savings

Installation of odor control system

Implementation of plant control and operation system

Operation of plant and training of owners personnel

Modifications and retrofitting existing treatment systems

Installation of elevators

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