Engineers to plan storage tank inspection in Madison
Posted on Wednesday, December 30, 2009
By CHUCK CLEMENT, Staff Reporter 12/30/2009
After the start of the new year, Banner Engineering personnel will start working on a project to assess the structural integrity of Madison's 40-year-old water storage clearwell.
The city commissioners on Monday reviewed a professional services agreement that outlined the inspections which will occur in the underground 1-million-gallon storage tank located below the municipal water treatment plant.
Chad Comes, city engineer, told the commissioners that Banner Engineering would operate the 2010 inspection similarly to an evaluation that the Brookings firm conducted in 1997. The project includes a visual inspection of the structure, analysis of the collected information, and a report that includes recommendations.
The visual inspection includes drawing down the water level inside the clearwell to below 2 feet or lower from the floor to check the condition at the bottom of the storage tank. The inspectors will also check for any cracking or chipping to the support columns inside the clearwell.
Heath VonEye, municipal public works, said the 2010 inspection would help determine whether there was a significant amount of deterioration since the 1997. Von Eye told the commissioners that the city's water towers could handle Madison's water demands while the clearwell is inspected.
Banner Engineering will receive $9,500 for the services that it provides under the contract.
The commissioners also approved agreements with DeWild Grant Reckert and Associates of Rock Rapids, Iowa, and Mike Kroger Masonry & Restoration of Dell Rapids.
DGR and Associates will provide recommendations, plans and other assistance for a contractor to rehabilitate some of the city's sanitary sewer lines.
Comes said the contractor will use a cured-in-place pipe process that will eliminate leaks by installing a lining inside current sewer lines. He told the commissioners that he had seen the process used in other communities.
According to Comes, the cured-in-place pipe process is "becoming a more and more desired process" that avoids tearing up streets to make repairs. He added that the city has several neighborhoods that are good candidates to receive the repair work.
DGR's fee for the preliminary work totaled $13,750.
The commissioners also approved having Kroger Masonry perform about 4,900 square feet of tuckpointing on the rock walls along the creek located in Memorial Park. The Dell Rapids company will receive about $40,300 for the repair work planned during 2010.
©Madison Daily Leader 2009