PROJECT DESCRIPTION

Delta provided electrical engineering design and construction administration services for a new, replacement salt dome. This project also included improvements to the existing site operated and maintained by the City of Chicago.
The new salt dome structure is 236’ in diameter, 95’ in height, and provides 42,638 SF of storage. The project team completed the following additional design elements:

• Site grading, erosion, and sediment control
• Site drainage and proposed underground storm water storage
• Utility coordination
• Pavements and sidewalk
• Access control bollards and swing gate
• Curb and gutter
• Landscaping
• Concrete pad for staff trailer
• Lighting and power distribution

ELECTRICAL DESIGN

Lighting design consisted of photometric calculations for the selection of weather resistant and City of Chicago approved flood light fixtures:

• 28K lumen LEDs along the site perimeter
• 11k lumen LEDs mounted to the exterior of the salt dome
• 32k lumen marine grade corrosion resistant LEDs for salt dome interior

Site power design included:

• Verification of incoming 400A service
• Replacement of existing power panels on east and west ends of the site
• Replacement of 13 deteriorated power access hubs
• Updated Single line diagram