Title
Emergency Storm Sewer Repair - Board Approval
History
On Wednesday, May 30, 2007, Village staff was notified by a Village resident that a sinkhole had appeared in the middle of the street in front of 7700 West 157th Place. Upon investigation, it was discovered that a 73” x 55” corrugated metal storm sewer had completely collapsed under the street. Due to the scope of work involved, the equipment and material needed to make the emergency repair would require the assistance of an outside contractor.
Five Contractors were immediately contacted to submit cost estimates for the repair. Contractors were asked to submit time and material costs to make the repair. However, exact costs could not be submitted until the area was uncovered and the extent of the damage determined. Of the five contractors contacted, only two estimated proposals were submitted - Airy’s, Inc. of Tinley Park, Illinois, and Calumet City Plumbing of Calumet City, Illinois. The proposed cost from Airy’s Inc. was $2,000 below that of Calumet City Plumbing.
To minimize additional costs, Village staff was utilized for spoil removal and hauling stone backfill material. Staff also delivered notifications to every resident on 157th Place advising them of the work. The work began on Monday, June 4, and was completed the next morning. Public Works personnel televised the remaining sections of pipe (1,318’) to ascertain the condition of the remaining pipe. It was found that the section under 157th Street was also in need of repair.
The cost of repairing the section of pipe under 157th Place was $14,977.03 and the cost of repairing 157th Street is $9,970.18.
In addition, the bottom of the pipe in several locations is beginning to deteriorate and the long-term repair is to slipline the entire pipe. It is estimated that the cost to slipline the pipe the entire length would be approximately $700,000. Although costly, the alternative is to open cut and replace the pipe with a concrete pip...
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