Agenda - Council - 03/22/1994 - Laserfiche WebLink

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The estimated construction costs am contained in Table 3. The amount of crack filling material required is highly variable depending upon the number of cracks in the individual pavements. Based upon last year's experience, and a windshield survey of streets Lq the 1994 program, the application rate of crack filling material was estimated for each project and is contained in Table 2. City forces will patch pavement defects prior m sealcoating and will sweep streets and post parking restrictions prior to the sealcoating operation. City public works preparatory time is estimat~ to be two hours per mile and will be charged at a rate of $60 per hour, which is comparable to the contract street sweeping ram. The number of hours required for street patching is estimated on an individual project basis, based upon windshield surveys performed by the City Engineer and Public Works Supervisor. The raw charged for patching will be $30 per hour plus materials. Table 3 contains a summary of construction costs for Projects 94-01 through 94-11 which constitute the sealcoat projects. In addition to construction cost, overhead charges of twenty percent (20%) will be applied to cover the following services: Enginemng and Inspection CiW Staff Administration Bonding and Legal Contingencies 10% 5% 2% 3% Projects 94-12 through 94-14 consist of applying one and one-half inch bituminous overlays onto the existing pavement. Unlike sealcoats which simply preserve the flexibility of the existing bituminous, an overlay provides additional strength to the pavement structure. The pavement distress on these proposed overlay projects indicate that additional pavement strength is needed. Pr/or to the overlay, failed areas will be removed and patched by City forces. The existing pavement will be tack coated and a machine laid one and one- half inch overlay will be placed. Existing driveways will be feathered to match the new pavemen~ The overlay will be shouldered with topsoil and seeded to eliminate the drop off at the pavement edge formed by the overlay. Table 4 and 5 contain overlay project quantities and costs. The cost of the overlay work is estimated at $21 per ton. The actual bid price for overlay was $19 per ton in 1993. In addition to consumction costs, Table 5 contains the same overhead costs of twenty percent (20%) identi.fied previously for the crack fillingJsealcoating projects. FINANCING It is the Ciw's current policy to assess property owners fifty percent (50%) of the total project cost of the improvements for projects associated with the annual street maintenance program. Properties are assessed equally regardless of front footages or property size, since comer lots and cul-de-sac lots, which are common w/thin the City, would receive widely disparate assessments. Since projects are generally classified by subdivision which have similar street characteristics and lot s/zes, it is felt that there is a fak apportionment of project costs when assessed equally witkin the individual subdivisions. Table 6 presents a distribution of project costs based upon the above described policy. A special note should be made regarding Project 94-14. The City established a poLicy in 1991 which was intended to discourage the defeat of street maintenance projects. Projects which are defeated by petition and subsequently require a more expensive maintenance treatment are not eligible for the 50% parricipat/on on the part of the City. In 1985, sealcoat /mprovement project 85-12 was defeated by citizen petition. - 2 -