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With the city of Aurora, Colorado, USA facing a major water shortage after a two-year drought, time was of the essence for the Prairie Waters Project. The city’s water department partnered with engineering and program management service provider CH2M Hill to deliver one of the largest water -related public works projects in the state. The project plan called for a pipeline, three pumping stations and a treatment plant that will meet the city’s water needs through 2030. “It was a very large project for us to undertake,” says Larry Catalano, manager of capital projects for the City of Aurora. “We hadn’t done anything of this magnitude ever. Plus, with the critical nature of the drought situation that we were in, we didn’t know how long it was going to continue. So it was of paramount importance to bring it on line when we said we would.” The project spanned six local governments’ jurisdictions. Obtaining permission to construct in these areas required 18 months of complex negotiations and more than 400 permits. Mr. Catalano worked to minimize permits whenever possible, but designed the project to meet all requirements. In one instance, the U.S. Army Corps of Engineers told the project team that to avoid a permit it had to tunnel a creek crossing that Mr. Catalano thought was “fairly dry and innocuous.” He convinced representatives for the Corps of Engineers to inspect the site. They eventually determined that the creek could be crossed using the open cut excavation method, which doesn’t involve digging a tunnel – saving the project time and money. "We questioned everything to try to keep costs down but also comply with all permit requirements,” Mr Catalano says. One of the project’s goals was to minimize impact on the environment. Mr. Catalano’s team worked with the Colorado Division of Wildlife and the Division of Migratory Bird Management and many other jurisdictions as required to secure necessary permits. Team members also held training exercise for each of the contractors to help them recognize what to do when they encountered environmental issues. The megaproject closed ahead of schedule and a whopping US$100 million under budget.“Where we were really able to achieve our savings was through aggressive project management, attention to detail, partnering and continuous value engineering,” Mr. Catalano says. “Our construction managers, project managers and the contractor worked together to look for ways that did not affect the integrity or the design of the project to find ways to save money,”
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Budget: US$754 million
The Injaka Bridge in Mpumalanga, South Africa, collapsed
on 6 July 1998, causing the death of 14 people (including the designer of the bridge, Ms Marelize Gouws) and injuring 19 others. Most of them were standing on the bridge deck as it was being launched.