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Invenergy Wind – Bishop Hill III Wind Farm

Invenergy Wind - Bishop Hill III Wind Farm Construction during Blade Lift

Bishop Hill III Wind Farm consists of five GE 2.3-116 turbines and 48 GE 2.5-116 turbines, one 34.5 to 138kV substation, and a 34.5kV collection system in Henry County, IL. Boldt’s scope of work included the full civil package and access roads, foundation installation, tower wiring, tower erection, the electrical collection system and the collection substation. Additional scope included design, procurement, installation, commissioning, testing and warranty of the full scope of work.

To work within an aggressive schedule to complete the foundations and turbine erections, Boldt utilized a variety of Lean construction tools and methods, including Last Planner and BIM. As a result, the foundations were completed in early winter 2017, and tower erections were completed in early spring 2018.


Invenergy Wind LLC

Henry County, Illinois

Barr Engineering, Westwood Engineering

Boldt Role
  • General Contractor
  • Self-perform Construction
  • Virtual Design and Construction
Project Type
New Construction
Project Size

Renewable Energy

Project Highlights

  • Boldt coordinated engineering and construction planning for the electrical infrastructure with MJ Electric, who was contracted separately by Invenergy.
  • Boldt worked with the local authorities for road crossing and line drops needed in the area.
  • Boldt worked with the owner and GE to maintain timely offloads to achieve full on-time deliveries.
  • Pre-punchlist walk-throughs helped keep punchlist items to a minimum.
  • Scheduling services included weekly updated P6 schedule, along with a daily plan-of-the-day report with quantities installed and a two-day look ahead.
  • The collection length totaled 309,006 LF.
  • The access road length totaled 75,260 LF.