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1 <br /> � � <br /> � <br /> Each program has advantages and disadvantages: <br /> r <br /> • Seal coaring and crack sealing sends a message to residents that the City is doing the best it <br /> � can within its hudget. However, it is not the most prudent way for the City to spend its <br /> 1 money when seal coat applications are not cost effective. This approach may not satisfy the <br /> expectations of all the residents who expect a quality street abutting their home. <br /> � • Milling and overlaying is a cost effective approach to maintaining a public street, provided <br /> the street is in � condition that can accept an overlay. This method delays street <br /> � reconstruction, but residents may not accept it because the most opportune time to construct <br /> an overlay is when a street appears to be in reasonably good condition. In some cases <br /> � overlay projects are considered a band-aid approach to sireet maintenance. However, overlay i <br /> projects are considerably less costly than total street reconstruction. <br /> � • Electing not to seal coat streets in poor condition and waiting for reconstruction is cost I <br /> effective for the City because monies are not being wasted on unnecessary seal coat <br /> � materials. This allows all the streets to d teriorate to a condidon where residents will accept <br /> a reconstruction project. However, residents who expect a quality street sometimes must I <br /> , wait several years before the majority of a street has deteriorated to a condition where all I <br /> residents will accept a street reconstruction project. <br /> � <br /> In summary, the purpose of this Pavement Management Plan is to help the City of Centerville � <br /> � develop the best plan for rehabilitating its streets and satisfying the needs of its residents as well as <br /> � addressing the issues with existing utilities. The existing street subgrade in 60% of the City's streets <br /> consists of clay material that dces not have good drainage characteristics. This material attributes to a <br /> � shorter life of existing pavements. Once a new mad section with draintile and freely draining sand <br /> material is placed, the pavement and curbing will have a longer life and future street rehabilitadon <br /> � (besides seal coating) will involve milling and overlay rather than total reconstruction. <br /> � <br /> � <br /> � Centerville Pavement Management Study 12 <br />