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functional class has an estimated unit cost for overlay and reconstruction treatments. For <br />Local streets (FC-5) an additional treatment option was considered: slurry seals. The slurry <br />seal option allows for acost-effective treatment for local street segments, which do not carry <br />high traffic loads. <br />Unit costs for overlay treatments are derived-using historic weighted average project costs and <br />projected costs for rehabilitation of streets in each specific functional classification. Typical <br />overlay rehabilitation- includes milling of existing pavement to a moderate depth to remove <br />existing cracking and increase strength of the structural section. Isolated areas of severely <br />distressed pavement is removed and replaced including a new aggreg~Ptc base. Associated <br />costs include replacement of striping and pavement markings, adjt~strr~ciit~of manholes, and <br />other work needed to return the street to normal operation. <br />Unit costs for reconstruction treatments are derived using lei storic weigld average project <br />costs and projected costs for reconstruction of streets it~`casecific fiu~cinal classification. <br />Typical street reconstruction includes removal of the existing pavement and base structural <br />section and replacement with a new structural scion which 'll meet a 20-ycs~~ dcgn life. <br />Isolated areas of curb and gutter are replaced where they- wou t be suitable contain new <br />paving and/or have severe drainage problems. Associa s inc ude replacement of <br />striping and pavement markings, adjus ent of manholes, other work needed to return the <br />street to normal operation. _ <br />Unit costs for slurry seal treatments are de ed using historic weighted average project costs. <br />and projected costs for slurry seal of local streets. 7~~pic;~1 nrr~ seal treatment includes. street <br />cleaning, removal of vegetatioc`ealing of crack~..rnd application of an emulsified asphalt <br />aggregate mixture to the ca~tirc pa~~ed surface. Dissociated costs include replacement of striping <br />and pavement mar ' s, au~l other work needed to return the street to normal operation. <br /> Overlay - hC 1 & 2 <br />$122,000 <br />$215 <br /> av - FC ~ ~ 4 $156,000 $184 <br /> Overl~ ~ - FC ~~ $73,000 $169 <br /> Re-Const - FC 1 & 2 $545,000 $765 <br /> Re-Const - FC 3 & 4 $365,000 $677 <br /> Re-Const - FC 5 $230,000 $505 <br />Seal - FC 5 ~ .$11,000 ~ $19,000 <br />8 <br />