Increased monthly wastewater rates are allowing the city to replace a key sewer trunk line that is critical for more than 50,000 plus Manteca residents to flush their toilets.
The City Council on Tuesday authorized going out to bid for a $9.4 million replacement of the 4,200 feet of the Central Sewer Trunk Line that runs along the southern edge of the golf course between Union Road and a juncture where it turns south and heads under Airport Way to the treatment plant.
The line is where wastewater from much of Manteca north of the 120 Bypass is funneled through on the final leg of its journey to the treatment plant.
The aging line being replaced is considered to be near the end of its useful life.
Segments of the trunk line have failed in the past 10 years including beneath Union Road from the southern edge of the golf course north to Lousie avenue forcing emergency repairs. At one time, sewer flowed down the middle of Union Road in temporary above ground pipes while the failing segment was relined.
The latest work will also reduce the need for a pump station as the alignment for the new 36-inch pipe will be deeper to allow for gravity flow.
The sewer line being replaced is along the south side of the golf course by the No. 1 hole.
The new alignment departs from the golf course sooner offers significant cost savings, reduces construction time and minimized golf course impacts.
By being able to flow by gravity, the replacement line will increase the overall capacity from 15 million gallons of water per day to 19 million gallons of water per day.
As such, it will help greatly reduce long-term operations and maintenance costs.
It is among first capital improvements the wastewater rate hike that went into effect two years will tackle
Included are aging trunk lines in Central Manteca.
Four projects targeted for completion in 2031 that also will allow additional development in the downtown and nearby areas will cost $12 million combined are:
*The West Center Street trunk line.
*The Elm Avenue/West Center Street trunk.
*Installation of a 10-inch East North Street trunk line.
*Installation of an 8 inch East Nort Street trunk line.
The endeavor that went out to bid Tuesday is among the other near term projects the rate hikes will help find that will convert existing lines for gravity floe.
In doing so, it will eliminate the need for lift stations that would stop working during power outages as well as reduce ongoing electricity costs to operate lift stations.
Those projects include:
*The $12 million South Woodward trunk extension targeted for completion in 2031.
*The $9.4 million Union Road trunk extension targeted for completion in 2027.
*The $34.4 million north trunk extension on Airport Way targeted for competition in 2035.
The projects are part of $633 million overall in sewer system collection projects as well as water system projects the city has identified as needed to address aging pipelines and future service extensions.
To contact Dennis Wyatt, email dwyatt@mantecabulletin.com
