08-20-07 Agenda Item 2D, PMP Philosphy

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May 15,2006 6 maintenance on an as needed basis. The results of this scenario indicate that approximately $14.5 million will need to be budgeted for pavement management over the next 20 years. Scenario 3- A PCI value of 75 is an average benchmark for a number of cities in the metro area. In order to the City to maintain a PCI rating of 75, the City would invest approximately $16 million over the next twenty years for street improvements. Scenario 4- If the City adopted the existing CIP, the average PCI rate for the City would be 65 after the fIve year period. The projected results would be very similar to scenario number 2. Councilmember Grant asked what are the different types of seal coat that are available. Roseville Public Works Director Duane Schwartz stated that most communities use pea gravel and aggregate rock. Most cities use the aggregate rock because it wears better and is more economical. Councilmember Holden asked how long the top coat of a typical street lasts. Mr. Schwartz said that the top coat of a street will usually last three to six years. It is important for the City to develop a maintenance strategy to address street improvements, storm water drainage, curbs, gutters, utilities, and other maintenance issues. Typically pothole patching is a stop gap measure and not a permanent solution for repairing the roadways. Councilmember Holden asked why the software program did not recommend more streets for mill and overlay. Mr. Duane Schwartz noted that streets, that have curb and gutter may not be considered a candidate for an edge ruill and overlay. Councilmember Holden said that it would be more advantageous for the City to mill and overly streets if it is possible. City Adrninsitrator Wolfe said that the proposed CIP will change based upon the PCI ratings. It may be wise for the City to invest more money up-front to obtain a standard PCl rating for all of the City's streets. Councilmember Grant asked what Roseville's PCI goal is? Mr. Duane Schwartz said that Roseville's PCl goal is 75. The City began with a PCI rating of 55 at the beginning of its street maintenance program. On a yearly basis, the City would reconstruct four to fIve ruiles of street a year in order to bring the City's PCI rating up to 75. In the beginning for the City of Roseville to get their street maintenance program off the ground, the City bonded for street improvements in 1988. Recently the City of Roseville has not bonded for improvement projects and has been able to utilize the interest earned from the bonds to pay for future road improvements.