02-24-1999 Council Agenda - Laserfiche WebLink

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owarc R. Green Co CONSULTING ENGINEERS February 19, 1999 File: 805140J -0030 Mr. Joel Hanson City Administrator City of Little Canada 515 Little Canada Road Little Canada, MN 55117 Tpany RE: RAMSEY COUNTY TURNBACKS INSTALLATION OF CONCRETE CURB AND GUTTER Dear Mr. Hanson: As you requested, this correspondence will attempt to quantify some of the issues regarding the installation of concrete curb and gutter in conjunction with the cold -in -place recycling of Labore Road, McMenemy Avenue and County Road B2. Our comments would be as follows: • At this point in the process we are estimating the assessment cost for the concrete curb and gutter at $ 14.00 to $16.00 per foot. This represents 85 percent of the actual costs per foot in accordance with the City's assessment policy. Given that the City's assessment policy caps the assessment rate for a full reconstruction at $45 per assessable front foot, it would seem this assessment for the concrete curb and gutter is relatively high. There are a couple of reasons for this. First, the amount of work involved with installing concrete curb and gutter prior to the County recycling of the road. Our contractor will have to go in and remove bituminous and excavate the area that the curb and gutter is to be installed. In fact, over excavation will be necessary so that an aggregate base can be placed to provide a foundation for the concrete curb and gutter. After the curb and gutter is installed, there will be some minor driveway work and filling and restoration behind the curb and gutter that will be necessary. When the cost of this additional work is tacked on to the cost of installing the concrete curb and gutter the total project cost rises. In a normal reconstruction these costs would be borne by the reconstruction of the road. The second issue that is driving the cost up is the configuration of properties along these roads. There are many large properties with substantial front footages. In accordance with the City's assessment policy, many of these larger parcels have their front footage reduces for assessment purposes. This has the effect of reducing the assessable front footage below the total length of construction of concrete curb and gutter thus driving up the assessment cost per front foot. • Regardless of how good of job the County does in the cold -in -place recycling. This can only be considered a maintenance project and not a total reconstruction. We are actually trying to retrofit the curb and gutter to this maintenance project. There will be difficulties in the fact that the centerline grade of the road can not be substantially modified through the 1326 Energy Park Drive • St. Paul, MN 551 Page 10 t -9446 toll free 888/368-4389