03-09-94 Council Minutes - Laserfiche WebLink

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MINUTES CITY COUNCIL M21RCH 9, 1994 1994 STREET The City Engineer reported that if a patch and overlay IMPROVEMENTS improvement is not done on Westwind and Windrow Drives, in the next year or two there will be no option but to reclaim or reconstruct the streets. Morelan pointed out that at the previous meeting, a 10 year life was projected for a patch and overlay, and a 20 year life projected for a full-depth reclamation. It was suggested at that meeting that a patch and overlay might last longer than 1o years. The Engineer pointed out that when a patch and overlay is done, the subgrade is not being addressed. With a reclamation project a street is getting three inches of new asphalt versus an overlay over a street which is 17 years old. Morelan felt that if the street would last 20 years with a reclamation project, that made the most sense pointing out that the cost would not be twice as much as the patch and overlay option. The Engineer pointed out that at a 100o assessment rate for the rehab project, the cost would be approximately $21 per foot. Morelan pointed out that the project will cost a certain amount of dollars, and if the rehab project results in a product that will last twice as long for half again the cost, that would seem to make the most economic sense. The Engineer stated that under a reclamation project, a long life roadway can be assured since repairs will be made to the subgrade area wherever necessary. With an overlay, the City would not know what subgrade conditions are. Scalze pointed out that soil borings could be done to determine subgrade conditions. The Engineer pointed out that there are poor drainage conditions in the Windrow and Westwind areas. Scalze pointed out that a patch and overlay will provide a crown on the street which, in turn, will help 14