When asked to demolish two existing wood, six-cell cooling towers and complete the construction of eight of 12 cells in two new fiberglass cooling towers within a tight six-week outage window, Midwest Towers, Chickasha, Okla., teamed up with Precision Cooling Towers, Henderson, Ky., to complete the job for a utility customer.

The project mandated that four of the six cells on each new fiberglass-reinforced plastic (FRP) tower - or eight of the total of 12 cells - be operational by the end of the scheduled outage. To complete the job by deadline, Midwest and Precision assembled the bent lines on site prior to the outage, allowing demolition and erection of both structures only 10 days into the outage. Within seven days, 110 bent lines (55 per tower) were standing.

Assembly of the fiberglass bent lines was efficient. Unlike a wood tower, the columns can be constructed as one continuous piece rather than two or three connected pieces, reducing the amount of time and material needed to put a bent line together.

For this project, Midwest provided engineering, design, drafting, manufacturing, material and field assistance and Precision provided the labor.