Project Experience

Every project is different, and we tailor our services to meet the specific goals of each one. We take great pride in our innovative, client-focused, quality-driven, and knowledge based approach to meet the tasks at hand.

DWP-1074 CENTRAL OFFLOAD FACILITY

Owner:Detroit Water & Sewerage Department

Architect: CH2M Hill

Electrical and Security Design:

Rhodes & Associates, Inc.

Electrical and Security Construction: DES

Electrical Construction Value: $4,246,000

Electrical and Security Design Value: $229,000

Project Completion: June, 2005

Project Manager: Brian Rhodes

DES installed electrical power distribution, lighting, and security system improvements at the Detroit Waste Water Treatment Plant (WWTP) for a new Central Offload Facility (COF). The COF is a facility capable of handling and discharging sludge from all dewatering complexes at the WWTP. The COF contains three large sludge storage bins capable of discharging sludge directly to trucks, potentially for off-site handling at an off-site location or landfill disposal. Sludge from the bins can also be directed to lime mixers prior to off-loading to a truck. Included in this project was the design of a new truck gate entrance (Copeland Avenue) with guard house into the WWTP and truck weigh scale. DES installation included a new outdoor 15KV double ended 3,000KVA substation which provides electrical service to the new COF.

Video monitoring and recording equipment was installed at the new truck gate entrance guard house to allow security officers to access video cameras strategically located throughout the WWTP and to access digitally recorded video images of security incidents that have been recorded.

The Copeland Avenue Guard House security design improvements were integrated into the existing Plant Security System and DWSD System Wide Security System.

DWS-837B MODIFICATIONS TO THE EXISTING GENERATOR SYSTEMS Design/Build Contract

Owner:Detroit Water & Sewerage Department

Design/Builder: DES

Design: Rhodes & Associates

Design/Build Contract Value: $7,614,000

Design/Build Design Value: $847,900

Project Completion: Aug 2006

Project Manager: Brian Rhodes

DES provided design/build services for renovations to existing generator systems at 14 DWSD Facilities.

This project entailed the design of the (a) removal and replacement of the existing 15KV switchgear lineup at two facilities, (b) provide the capability to monitor and control the existing generator systems at 14 remote facilities from the DWSD (SCADA System) System Wide Monitoring and Control System and at each sites local monitoring and control workstation, (c) modify the existing generator system control to allow for operation of loads from any section of the facility 15KV bus during all modes of generator operation, (d) replace existing manual transfer switches in the generator control panel with automatic transfer switches at designated locations, (e) provide a new Ovation Work Station in the maintenance office at Central Services Facility.

In addition the design/build work included all civil, architectural, structural, electrical, instrumentation, control, testing and ancillary work necessary, to provide a complete and fully functional System.

LH-395 FURNISH AND INSTALL NEW VFD’s FOR HIGH LIFT PUMPS Design/Build Contract

Owner: Detroit Water & Sewerage Department

Design/Builder: DES

Design: Rhodes & Associates

Design/Build Contract Value: $13,326,000

Design/Build Design Value: $999,100

Project Completion: Mar 2010

Project Manager: Brian Rhodes

DES provided design/build of new Variable Frequency Drives, each with a bypass contactor/starter for three existing 5,500 horsepower high lift pumps at the Detroit Water & Sewerage Department’s Lake Huron Water Treatment Plant. The work also included develop, test and implement new control strategies for the Imlay Pumping Station.

This project entailed the design of the (a) Furnish and Install new VFD’s, each with a bypass contactor/starter for High Lift Pumping Units 2, 8, and 9, (b) construct a new room to house the new Variable Frequency Drives, (c) Modify the existing 13.2 kV synchronous motor feeder breakers of the High Lift Pumping Units to function as the feeder protective device to the new VFD’s, (d) modify the synchronous motors controls, exciter assembly, exciter controls or other equipment/devices per the new VFD system requirements, (e) provide the capability to remotely monitor and control the new VFD’s from the DWSD (PC-713 Ovation System) System Wide Monitoring and Control System and at each motor’s local monitoring and control workstation.

In addition the design work included all civil, architectural, structural, electrical, instrumentation, control, testing and ancillary work necessary, to provide a complete and fully functional System.