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' RCM 10408.01 EXISTING CONDITIONS ' RCM personnel met with City staff to discuss the existing roadway and utility conditions. City staff visually inspected the sanitary sewer and storm sewer. RCM personnel also visually inspected the roadways. The ' findings of these inspections are summarized below. 1 A. Streets The streets in the project area,shown on Figure 1,consist of bituminous pavement with concrete curbing. The only exception to this is the intersection of 36th Avenue NE and Harding Street which is constructed with ' concrete pavement. The streets were constructed when the area was first developed and have been in place longer than the typical 20 year design life for a bituminous roadway. In the past,the City has maintained the streets by ' patching and seal coating the pavements to extend their life. In recent years,the pavement and curbing have shown deterioration and settlement in numerous areas. Most areas of the bituminous pavement have extensive ' cracking. The curb an d gutter has settled in some areas to the degree that stormwater is prevented from flowing in the gutter. The overall roadway conditions have deteriorated to a level such that the pavement and curbing ' should be replaced. ' Milling and overlaying the project streets was originally considered as an option.However;after RCM personnel viewed the inplaced pavement it was concluded that the pavement condition did not warrant a mill and overlay improvement, due to the extent of settlement and deterioration. Even if a mill and overlay improvement was feasible, half of the street width would need to be reconstructed in conjunction with watermain replacement. Additionally; as a part of the street reconstruction it is likely that street grades will be modified slightly.As a ' result,some manhole reconstruction may be required to accommodate the new street grades. B. Watermain ' All of Roosevelt and Harding Streets within the project limits have 6 or 8-inch diameter cast iron watermains serving the adjacent residences. The residences adjacent to Edward Street within the project limits are served by ' a 10-inch diameter cast iron watermain. The watermains are old and are highly susceptible to leaks and breakage. In the past,City crews have repaired the watermains in numerous locations. The watermains should be replaced with new ductile iron watermains prior to street reconstruction so that new street improvements will not have to be disturbed for repairs to the old cast iron watermains in the foreseeable future. 1 3