The Grand River Dam Authority completed the Unit 3 project on time and on budget.
The team built Unit 3 while simultaneously performing an air-quality control project on Unit 2, making the Grand River Energy Center an even cleaner source of energy. The agency made highly detailed construction planning a priority to overcome challenges.
Due to flooding along the Mississippi River, delivery of the combustion turbine and steam turbine generators were delayed by several weeks. The team responded by quickly changing the sequence of critical path events, and it rescheduled the use of heavy lifting equipment and craft labor.
Sound contingency planning allowed the team to conquer these challenges; however, nothing could have prepared it for the setback in July 2016.
Lightning struck Unit 2 during peak construction on Unit 3. The resulting fire and destruction to Unit 2’s turbine and generator meant the team would have to rebuild that unit. It also set back construction on Unit 3 by several days.
Although discouraging, the team didn’t let the additional adversity get in the way of its mission: to achieve and set a new standard for efficiency and reliability for power generation; and, to achieve the highest level of excellence in project design and execution through a commitment to quality, innovation and safety.
It revised construction plans once again and picked up where it left off on Unit 3, bringing it to a successful completion.
“The municipal customers are appreciative of what GRDA has done, and the initiative that they've taken to keep Oklahoma a great state by providing low-cost, reliable power,” said Mike Doublehead, General Manager, Tahlequah Public Works Authority.
The project achieved more than 1 million man-hours without a recordable injury. In partial recognition, it received an award for “Excellence in Construction” from a chapter of the Associated Builders & Contractors, Inc.