• Home
• •
• Projects
• •
• 1

Projects

We provide end-to-end services to small utilities. Below is a sampling of projects we have completed recently for our clients.

Want more information? Contact Sean Knowles at sean.knowles@mcleanengineering.com or (229) 985-1148 for project details or to get connected to an experienced engineer.

Project Case Study

Haines Creek Line
6.45-Mile Transmission Line, 115 kV, Operated at 69 kV

Scope
Design (plan, profile, foundation); material specification (pole type, dimension, strength; pole-top assemblies); coordination of subcontracted surveying, soil boring and underground utility location; ensuring smooth and economical construction.

Notable Project Aspects
The project was a rebuild of a 1950’s era line. Soil conditions were poor and access was limited, but underground conflicts were minimal.

Jurisdictional Wetlands and Sovereign Submerged Lands were the main obstacles. The SSL issue did not appear until very late in the environmental permitting process, threatening to derail the schedule. We were able to expedite the FDEP’s internal document flow and minimize delay. Construction began on time with a slight delay from working around the permit. The line was due to energize the week Hurricane Charley blew by and was ready to energize the Monday after Charley.

By using vibratory-installed steel poles, the cost of matting was greatly reduced. Utilizing the large vertical clearance required over the river, well beyond the river, also reduced the number of structures. The client informed us these two design elements more than offset the greater per unit cost of steel poles.

Estimated Total Project Cost
$5.1 million

For downloadable project case studies, click here.

Recent Projects

• Work Order Inspections
• 2007-2011 Construction Work Plan
• Substation: Design and engineering, Bid collection, construction inspection
• Substation, Grounding transformer
• Lighting upgrade
• Substation, 69/25 kV, 15/20/25 MVA: Design and engineering, Bid collection, construction inspection
• Substation, Underground outgoing circuits
• Hurricane Wilma Damage Restoration: Field design and rebuild of transmission line using available material
• 2005-2020 Long-Range Plan
• Portable Substation, 69/25 kV, 25 MVA
• High-side Modifications, 69/25 kV, 15/20/25 MVA
• Canal Cable Crossing
• Transmission Lines, 69-230 kV
• Substation, Second transformer, 138/69 kV, 50/67/83 MVA
• Storm damage assistance
• Distributed Generators
• Transmission Loop: Design and engineering, Bid collection, construction inspection
• 2004-2006 Construction Work Plan
• 2005-2014 Long Range Plan
• Substation & Distribution, 2.7 miles of transmission at 115 kV, 115/25 kV substation, 0.6 miles of 25 kV underground service
• Substation, Circuit Switcher
• Numbering & Inspection of Primary, Secondary & Service Poles
• Transmission (Semi-Rural), 6.45 miles; 115 kV, operated at 69 kV
• 2003-2006 Construction Work Plan
• Transmission w/Underbuild (Rural)
• 2003-2005 Construction Work Plan
• Transmission (Suburban), 3.65 miles; 69 kV with distribution underbuild
• 2001-2004 Construction Work Plan
• Transmission (Semi-Rural), 3.74 miles; 69 kV
• 2002-2004 Construction Work Plan
• Digitize Maps (approx. 75,000 poles)
• 2001-2003 Construction Work Plan, Capacitor Study & Disaster Plan for Loss of #2 Station
• Facilities Relocation