7B, Motion to enter into an agreement with Bolton and Menk for erosion correction of Old City Hall

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E3C>L TC>N &. 1'/1 EN K, I NC@ Consulting Engineers & Surveyors 12224 Nicollet Avenue · Burnsville, MN 55337 Phone (952) 890-0509 · Fax (952) 890-8065 www.bolton-menk.com June 10, 2009 Mr. Greg Hoag Public Works Director City of Arden Hills 1245 West Highway 96 Arden Hills, MN 55112 RE: Proposal for Professional Engineering and Surveying Services Keithson Drive Trail & Drainage Improvements City of Arden Hills, Minnesota Dear Mr. Hoag, Thank you for meeting with me last week to discuss the existing conditions and necessary drainage improvements required along the City's trail system that extends behind the properties along the east side of Keithson Dri ve. We are pleased to offer you this proposal for our services in identifying and engineering the necessary drainage improvements. As a part of this proposal we describe our project understanding, present our scope of work, and offer our fees for services. Proiect Understandinl! In reviewing the project site with you on June 4, 2009, we identified a segment of the existing trail behind the residential property located at 4504 Keithson Trail that currently directs water into the backyard of the subject property. This water, which is collected from a larger area east of the trail, appears to flow through some existing landscaping within the southeast corner of the property causing some erosion problems, then continues to flow south into a wetland area adjacent to the property. It is our understanding that the City seeks a solution that would redirect this runoff from the trail, impeding it from flowing into the residential property, and instead routing it more directly toward the ultimate wetland area to which it ultimately flows. Scone of Work Bolton & Menk, Inc. will complete a topographic survey of the local area that is flowing into the backyard property at 4504 Keithson Trail. The survey will also include that southeast corner of the subject property through which the runoff flows. Upon completion of this field survey, we will map out contours of the area that confirm the extents of the contributing drainage area and also better delineate the drainage pattern through the southeast corner of the subject property. This map will serve as a basis of our subsequent evaluations and improvement designs. At this time, we anticipate that modifications to the trail, itself, will be most cost-effective in improving this drainage situation. We will also attend one meeting with the City and the residential homeowner for the purpose of discussing possible solutions to the drainage issues. Our final deliverables will include detailed construction drawings of the improvements as well as technical specifications and bidding documents. We will assist the City in soliciting contractor quotes for the construction work, and we will provide written recommendation of a