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Construction Projects
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Each year the District plans construction projects to repair or replace problem water and sewer main lines. The District has identified these projects for 2012.
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Liners for damaged sewer mains
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Each year the District uses its video inspection van to inspect and analyze the sewer main lines of the District. Through this process, the District has identified 3,200 lineal ft. of 8-inch sewer main throughout the district for rehabilitation by installation of a special liner. This work repairs damaged sections of the sewer mains without having to excavate the street to replace them. The liners are made of a fiber material reinforced with resins to form a hard plastic shell inside the sewer line. Although this is an ongoing project, this method or repair saves the District approximately one-half of the normal expense of totally replacing the sewer main.
This same process helps us to identify different sections of the sewer main where a small spot repair of the main line can be done without having to dig up or excavate that location.
The District has the equipment to place a repair or patch made of fiber material reinforced with resin to form a hard plastic-type repair inside the existing line. By repairing these small sections of line, the District can maintain the integrity of the sewer system and save on the cost of doing excavations. This work usually involves several trucks and a large trailer working in the street for one day at each location. The District’s crews will be making repairs at over 50 locations this year. Tree roots, grease and debris are removed from the main lines that carry sewage to the treatment plant. The District has equipment to make repairs up to 10 feet in length. Major damage or longer repairs require slip lining, the process mentioned above or total replacement of the sewer mains. Right now, the District is able to do this maintenance work for approximately one-third of the cost of contracting this work out which saves Green Mountain customers quite a bit of money.
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Pressure reducing valve replacements
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The District is in the process of replacing older pressure reducing valves used to control the water pressure on the District’s main lines. This involves the construction of a new vault to accommodate the new pressure reducing valves and controls. The District’s contractor will be working to replace pressure-reducing valves at 12911 W. Florida and 10459 W. Exposition Ave.
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Replacement of Water Mains
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The District will be constructing new water lines to replace “problem” water mains. These replacements will be on streets where we have experienced a number of main breaks that have caused water outages to the customers in the areas close to these streets. In 2012 we will be doing construction work to do water main replacements on the following streets: South Miller Way on the loop from South Miller Street. This water main supplies water to the Kipling Club Apartments and Townhomes. There have been seven main breaks on this stretch of water main since 2001.
West Alaska Dr. between S. Cole St. and S. Devinney St. Here the existing 8” water main and valves will be replaced with a new 12” water main to help improve water flow to the storage tank that supplies this area. West Mississippi Ave. from S. Briarwood Dr. to W. Tennessee. There have been four main breaks on this line since 2005. Replacement of this line will help to minimize repairs in this dangerous work area. W. Asbury Place from W. Yale Ave. to S. Zang St. This line has experienced five main breaks since 2000. This replacement helps to complete a number of water main replacements that have already been done in this area.
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Sewer Outfal Line
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In 2012 the district will be working to complete work on a new sewer outfall line across Addenbrooke Park. This new outfall line will help to carry additional sewer flows from the new development for the new St. Anthony’s Hospital and the new RTD Light Rail Station. A new water storage reservoir by the Warren Tech Center and a new water pump station will also be completed in 2012. These additions to the District’s system are being funded by the developers for the St. Anthony’s Hospital at no additional cost to the customers of the District.
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