4.7. SR 10-02-2017 - Laserfiche WebLink

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Justin Femrite August 29, 2017 Page 2 198th Avenue, 197th Circle, Troy Street and Victoria Street Project Area At the time of our proposal, construction of this area was assumed to be a bituminous overlay. It was known that there were some areas of poor drainage and it was assumed that there would be some associated profile milling to improve the drainage, particularly in the area of the Troy Street and 1981h Avenue intersection. During our design, it was determined that there was not enough grade to improve drainage with profile milling and a more extensive design was necessary. Further, poor soils were encountered during construction in this area which increased the construction timeframe. There were also a few isolated stretches of bad pavement in which additional work effort was required (i.e. full depth reclamation and profile raising) to increase the pavement strength and longevity which slightly increased the design effort, construction timeframe, and required construction staking. It is estimated that the additional work on this project area resulted in an increase in cost of approximately $8,000. 178' Street There was no change in scope for 178' Street. The construction of 178' Street went well and is completed. 185' Street Although the curb replacement on 185' Street was more extensive than originally anticipated, there was not a significant change in scope on 185' Street. Local Reconstruction Area - 194" Avenue NW, Irving Circle NW, Lowell Street NW, 193rd Lane NW, 192nd Avenue NW, 193rd Avenue NW, King Circle NW, Norfolk Street NW, Oxford Avenue NW The timeframe for the construction of the local reconstruction area is projected to be slightly longer than anticipated at the time of our proposal. At the time of our proposal, we estimated a construction timeframe of 9-10 weeks. This area is currently under construction and we are entering the 9' week of construction. Some areas of poor soils have been encountered which has extended the construction timeframe. It is estimated that construction may be completed during the week of September 25', which correlates to a total construction timeframe of 13 weeks. It is estimated that the longer construction timeframe will result an in increase in cost of approximately $15,000. 209' Avenue There was no change in scope on 209"' Avenue. Evans Street There was a decrease in scope on Evans Street. At the time of our proposal, it was assumed that the construction of Evans Street would be a full depth reclamation. However, during the design phase the pavement condition was reviewed and it was determined that a bituminous overlay with isolated patching was the most cost effective and the appropriate treatment method. It is estimated that the construction timeframe will be reduced by approximately one week which results in a decrease in cost of approximately $5,000. Hal(anson IIIAnderson