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CASE 1994 STREET MAINTENANCE PROGRAM By: Steven Jankowski, City Engineer Background: The purpose of the annual street maintenance program is to address the maintenance needs of the City's pavements on a periodic basis so as to maximize the life and usability of City streets. Enclosed is a copy of our street inventory which contains an historic summary of all our City streets. This inventory includes information on the length and width of pavement, the year the pavement was constructed, the year it was most recently sealcoated, the years of previous sealcoating and the year any pavement was overlaid. This inventory provides the basis of scheduling candidate projects for the annual street maintenance program. In reviewing the information contained in this inventory, it becomes apparent that the general trend has been to seal a new pavement for the first time after six years and to consider a second sealcoating or overlay after approximately eight years. However, there have been variations to that pattern with some pavements being sealed as little as two years after construction and as long as ten years. I have summarized the information contained in the street inventory and an enclosed table entitled "Ramsey Pavement History". The information in this table provides a chronologic summary of the number of miles of City streets constructed, sealcoated and overlaid on an annual basis. It is significant to note that the construction of pavement within the City fluctuated considerably from year to year. In particular, you will notice that better than one-third of the City's pavement was constructed in the three years between 1979 and 1981, and almost half of the pavement was constructed in the five-year interval between 1978 and 1982. This unique construction history presents a problem to the goal of addressing pavement maintenance on a periodic basis, since there is a very significant bulge in the size of the program needed when addressing the maintenance needs of pavements constructed within these years. You will also notice, from this table, that our sealcoadng program which was initially begun in 1981, has fluctuated considerably in the number of miles addressed each year. To address the maintenance needs of the entire pavement system on an eight-year basis would require approximately 15 miles of roadway to be addressed each year. This target has been met for the past two street maintenance programs. This amount should be the goal for future years. Unfortunately, when compiling a list of candidate street projects for 1994 on the basis of scheduled need, 23.25 miles of street become eligible. A listing of the candidate projects is contained on the enclosure entitled "Candidate 1994 Street Maintenance Program Projects". This project contains information on when each pavement was constructed or last received maintenance. It also contains a preliminary cost estimate which is associated with each project for sealcoating and/or overlaying based upon the per square yard costs experienced for the 1993 program. The preliminary per lot cost esnmate for sealcoating and crack filling streets is 70¢ per square yard and overlays are estimated at $2.50 per square yard. It quickly becomes apparent that not all candidate projects can be scheduled in the 1994 program under the current budget. This budget is set at $100,000 for the City's share, which would be leveraged by special assessments in an equal amount, plus any escrows which have been contributed by developers. The projects which have been selected for scheduling the 1994 program have been highlighted in bold type on the candidate street maintenance program table. Comments associated with each project indicate any escrows which may be available to offset the cost of the project and also contain comments on the condition of the pavements and possible reasons for which they should be delayed. The proposed program consists of a total of 14.6 miles which is divided between 11.1 miles of sealcoat and crack filing and 3.5 miles of overlay. The preliminary cost estimates associated with the program total $234,665.00, of which $125,280 is anticipated to be assessed, $8,600 is .7