5.2. SR 09-17-2007 - Laserfiche WebLink

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4 ~.~ 1Livcr Downtown Parking Study Option 1 Option 1 places the parking structure set back from Main Street about 100 feet from the curb. An area for commercial buildings with a foot print of about 14,335 square feet fronts Main Street. A service drive is shown along the north side of the commercial building. The commercial building could be a single story or multiple levels. This option would require the acquisition of the Elk River Meats building and the demolition of the other HRA owned one story buildings fronting Main Street. The Option 1 parking structure concept has about 287 gross parking spaces. However, the concept plans do not account for code required accessible spaces. During the refinement of the design additional spaces may also be lost. Approximately 5% of the spaces may be lost during the design phases. In Option 1 the number of spaces in the structure is reduced to about 273 spaces. The structure has two supported levels plus the on grade spaces. The concept design has two parking bays with the northern bay sloped providing vertical vehicular circulation. The southern bay is essentially "flat", sloped only for drainage. The overall footprint of the structure measures 124 feet wide by 275 feet in length. Approximately 50 parking spaces are shown in the area north of the parking structure. Access to these spaces is by driving through the structure on the west end. The conceptual construction cost is estimated at about $4.7 million. This estimate is based upon typical parking structure costs in the Minneapolis market and includes a 10% estimating contingency. The construction cost is about $17,200 per parking space. This estimated cost does not include any site work for the area located north of the parking structure. Subsurface soil conditions can have large influence on the constructions costs for a parking structure. The estimated costs do not include allowances for poor soil conditions or for environmental remediation. Fees for design work, geotechnical engineering, site surveys, etc are estimated at 12% of the construction costs. An allowance of $40,000 is included for the demolition of the existing buildings. The total project cost for the structure is estimated at about $5.3 million. Because the structure is displacing existing parking spaces consideration should be given to the net number of spaces that will be added. The project, including the remaining surface lot spaces, yields 165 additional spaces. The total project cost per added space is $32,200 per space. September 2007 Carl Walker, Inc. 30