Variable Frequency Drive Maintenance and Services

The City is seeking firms to provide routine preventive maintenance and repair services for approximately 50 Variable Frequency Drives (VFDs), ranging from 208 volts to 460 volts, located at various City facilities, including the Airport.  Brand names include ABB, Danfoss, Mitsubishi, Schneider Electric, and Yaskawa.  VFDs will be checked as needed for a full service of the VFD (cleaning, replacement parts, etc.), and involve inspection, testing, and reporting on each VFD’s condition.  The City uses VFDs in various applications involving pumps and fans for HVAC systems to achieve energy savings.

Zone 4 Field Operations Center (Construction Manager-at-Risk)

The proposed Zone 4 project will include a 36,000 sf operations center, approximately 20,000 sf of pre-engineered metal structures to house open storage, crew storage, raw materials bunkers, two (2) combination trucks, fabrication shop, and two (2) fleet maintenance bays.  The project will also include demolition of existing facilities in a phased approach so as to minimally impact or impede current operations on the site. The project may also include roadway improvements to West Tyvola Road to increase accessibility to the site.

Rodgers Builders was selected as the Construction Manager at Risk (CMAR)  for this project.

 

HVAC Replacements at Wilson Air Main Terminal

This solicitation will involve replacing split system air conditioning units and reheat coils according to drawings produced by engineer. There are five (5) split systems along with twenty-five (25) reheat coils to be replaced. This equipment was installed during the original construction of the building. In this project, we are replacing the entire system, including the controls. This project is estimated to be less than 6 months.

Catawba Pump Station Rehabilitation Project

The Project site is the Catawba Raw Water Pump Station located on Mountain Island Lake, owned & operated by Charlotte Water. The site address is 12548 Pump Station Rd, Charlotte, NC 28216. The work under this project will be primarily in Cells #2 & 3. The electrical work consists of changing the Cell #3 voltage from 2300V to 4160V, including new switchgear, synchronous motor, conduit, cable, etc. as well as re-winding an existing electric pump motor. The civil/mechanical work consists of rebuilding/replacing screens, rehabbing cone valves, and installing a new flow meter vault. The structural work consists of new electrical vault, drywall electrical room, masonry, doors, windows, louvers, and fans. This project also includes upgrades to the fire alarm system for the entire Catawba Pump Station facility.

State St. Ped Improvement

This project will provide new sidewalk, curb and gutter, drainage improvements, landscaping with Street trees, street resurfacing, and traffic calming bulb outs with small maturing trees in key locations.The project length is 0.468 Miles.

I 77 West Trade Underpass

This project will provide new sidewalk, curb and gutter, drainage improvements, landscaping with Street trees, Pedestrian lighting, artwork, a decorative retaining wall, brick pavers with benches.The project length is 0.2 Miles.