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Unimproved streetsare those with soil, gravel, or asphalt mat surfaces that have typically evolved to <br />their existing state, have not been structurally designed, and have few if any, drainage facilities and <br />no curbs or gutters. Typically, an unimproved street must be fully improved through a local <br />improvement district, funded in part by the abutting property owners before a higher level of service <br />will be provided ( <br />maintenance service). Unimproved streets receive a low level of ongoing maintenance limited <br />primarily to emergency pothole patching (three inches or greater in depth) and minimal roadside <br />ditch maintenance.To address the growing number of potholes on City streets, the City Council <br />augmented the street repair budget with General Fund allocations for a total of $2.35 million from FY <br />2009 through FY 2011. Subsequently, Public Works has allocated $200,000 per year from Road Fund <br />for enhanced street repairs. The Maintenance Division has addressed potholes by either filling <br />individual potholes or by performing maintenance overlays onentire street segments. Since 2008, <br />more than 116unimproved streets,representing 52lane miles,have been resurfaced as a temporary <br />treatment. In addition, several unimproved streets have been brought up to full urban street standards <br />through assessment projects, attributable in part to more flexible design standards. <br />em in centerline <br />miles and 12-foot lane miles by pavement type and by functional class. <br />Asphalt over <br />Asphalt (ACP)Concrete (PCC)GravelUndevelopedTotal <br />Concrete (APC) <br />IMPROVED <br />SYSTEM <br />Miles12' Lane Miles12' Lane Miles12' Lane Miles12' Lane Miles12' Lane Miles12' Lane <br />MilesMilesMilesMilesMilesMiles <br />Major Arterial <br />13.9764.340.030.184.386.13000018.3870.65 <br />Minor Arterial <br />63.19213.592.277.513.5611.92000069.02233.02 <br />Major Collector <br />30.0792.341.152.723.258.87000034.47103.93 <br />Neighborhood Collector <br />23.8761.850.451.231.604.48000025.9267.56 <br />Residential <br />311.84720.752.285.9221.1553.890000335.27780.56 <br />Total <br />442.941152.876.1817.5633.9485.290000483.061255.72 <br />Bituminous Surface <br />Asphalt (ACP)Concrete (PCC)GravelUndevelopedTotal <br />(BST) <br />UNIMPROVED <br />SYSTEM <br />Miles12' LaneMiles12' LaneMiles12' LaneMiles12' LaneMiles12' LaneMiles12' Lane <br />MilesMilesMilesMilesMilesMiles <br />Major Arterial <br />000000000000 <br />Minor Arterial <br />1.693.15000000001.693.15 <br />Major Collector <br />3.257.34000000003.257.34 <br />Neighborhood Collector <br />4.138.32000000004.138.32 <br />Residential <br />38.9064.234.366.890.030.038.8912.964.695.9156.8790.02 <br />Total <br />47.9783.044.366.890.030.038.8912.964.695.9165.94108.83 <br />4 <br /> <br />