Launch Slideshow

South Pipeline 4A Central tunnel boring machine (TBM) is lowered into the tunnel shaft.

Water supply project finishes $147 million under budget

Water supply project finishes $147 million under budget

  • South Pipeline 4A Central tunnel boring machine (TBM) is lowered into the tunnel shaft.

    http://www.pwmag.com/Images/S4A%20Central%20TBM%20machine%20lowered%20into%20shaft_tcm111-2156636.jpg

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    South Pipeline 4A Central tunnel boring machine (TBM) is lowered into the tunnel shaft.

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    Southern Delivery System

    South Pipeline 4A Central tunnel boring machine (TBM) is lowered into the tunnel shaft.
  • A worker prepares to install a shrink sleeve over the pipe joint to keep dirt and rock away from the connection as the trench is backfilled. Welding then occurs underground within the buried pipe.

    http://www.pwmag.com/Images/South%20Pipeline%201%20installation%20of%20sleeve%20for%20WAB_tcm111-2156637.jpg

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    A worker prepares to install a shrink sleeve over the pipe joint to keep dirt and rock away from the connection as the trench is backfilled. Welding then occurs underground within the buried pipe.

    600

    Southern Delivery System

    A worker prepares to install a shrink sleeve over the pipe joint to keep dirt and rock away from the connection as the trench is backfilled. Welding then occurs underground within the buried pipe.
  • Construction at the water treatment plant, April 2014.

    http://www.pwmag.com/Images/Water%20Treatment%20Plant%20construction_tcm111-2156638.jpg

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    Construction at the water treatment plant, April 2014.

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    Southern Delivery System

    Construction at the water treatment plant, April 2014.

Within two years, one of the West’s largest water-supply projects will begin pumping its first drop. Even better news for the 500,000 people directly affected: The project will be completed on time and under budget.

Conceived 20 years ago by Colorado Springs Utilities (CSU), the Southern Delivery System (SDS) will pump Arkansas River water stored in Pueblo Reservoir about 50 miles north to Colorado Springs, the state’s second largest city, and three other communities. Recognizing the value in regional resource planning, the communities of Fountain, Pueblo West, and Security helped with funding.

Southern Colorado is achieving greater water certainty for about $147 million less than the $1 billion project estimate. Due in large part to significant cost reductions, CSU will need fewer and lower rate increases than originally anticipated.

When Colorado Springs’ council approved the project in 2009, seven consecutive 12% rate increases, followed by two 4% increases, were anticipated to fund the city’s portion of the investment. Instead, revised projections of two years at 12% and two years at 10% have been implemented, with no additional water rate increases expected to fund Phase I.

The utility also made good on promises to stimulate the region’s economy by involving as many local companies as possible.

To facilitate competitive bidding, construction was divided into more than 20 major work packages using contractors that underwent a rigorous prequalification process. Ultimately, more than 330 Colorado companies have been involved in planning and construction. To date, about $275 million of the $359 million spent in the state has been with businesses in local counties.

Most cost reductions were identified by value engineering the project’s three major components: pipeline, pumping, and treatment. Value engineering is a systematic process used to identify potential efficiencies and alternatives to reduce costs while maintaining functionality and quality. By continuously assessing opportunities for improvements, CSU leaders provided greater value for customers.

Next page: Value engineering: design-bid-build