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2008 Pavement Management Program Project AH-08-07 EXISTING STREET CONDITIONS The project area includes single family properties in a fully developed neighborhood; all of the properties adjacent to these streets are zoned R-I. There is limited access to this neighborhood; therefore, these streets carry low volumcs of traffic. There are no commercial or institutional uses affected by the proposed improvements. Both Asbury Street and Ridgewood Road extend past the City Limits into Roseville. The existing streets are centered on a 60-foot right-of-way. Asbury ranges from 28.5 to 35.8 feet wide; Ridgewood is 31 to 33.5 feet wide. Neither street has concrete curb and gutter and there are no existing sidewalks or paths. Arden Hills' pavement management system utilizes a pavement condition index (PCI) rating of 0 to 100. This rating is based on surficial pavement observations. Generally, the indices correspond to a level of most cost effective improvement as follows: 0-30 = pavement reconstruction; 31-65 = asphalt overlay; and 66-100 = sealcoat and/or crack sealing. This rating system assists in prioritizing roadway improvements and projecting costs for use in the City's pavement management and capital improvements plan. Actual levels of improvements are determined by completing a comprehensive geotechnical evaluation and a preliminary engineering report. Soil borings have been completed and the results are incorporated into this report. Asbury Avenue and Ridgewood Road exhibit moderate to severe transverse and longitudinal cracking. The pavement surface on Ridgewood Road shows signs of oxidation, as evidenced by the exposed pavement aggregates. A bituminous overlay was completed on Asbury Avenue in 1995. There is evidence of patching on both streets. PROPOSED STREET CONSTRUCTION The following describes staffs recommendations for improvements to the pavement on each street. General comments The new streets will be constructed with a 7 -ton structural design, bituminous pavement, and concrete curb and gutter. In the interest of protecting existing mature trees, it is proposed to reconstruct these streets to a 28-foot width. Since this is a local road, this width would allow parking on one side of the street. At this time we recommend parking on the west side of Asbury and north side of Ridgewood Road. We will work with property owners on finalizing these recommendations through the design process. II