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ǣ̳̳ͲͳͳʹͶͻ͸ͷ̳ͳ̴̴̳̳ʹͲʹͳͲͻʹͲ̳Ǥ MEMORANDUM Date: September 15, 2021 To: Arden Hills City Council David Swearingen, PE Interim Public Works Director From: Mike Waltman, PE Project Manager Brad Fisher, PE Project Engineer Subject: Snelling Avenue N Improvements Preliminary Design Analysis & Final Design Options City of Arden Hills Project No. 0T1.124965 As per our proposal accepted by the Arden Hills City Council on June 28th, over the past two months Bolton & Menk has preliminarily developed improvement alternatives for Snelling Ave N including two with non-motorized facilities. We have also met with and discussed the improvements with representatives of the Municipal State Aid (MSA) Metro office three times to shape these alternatives to the degree where they concur the proposed improvements meet the MSA statutory rules. This memo is intended to summarize that work, explain how the three design options were developed in advance of City Council discussion at the September 20th, 2021 Work Session meeting. BACKGROUND: An agreement for professional services with Bolton & Menk for the proposed Snelling Ave N Street & Utility Improvements project was approved by the City Council at the June 28th, 2021 City Council meeting. Our scope included beginning with design analysis to determine the potential design options through the Snelling Ave N street corridor that meet MSA design standards/state statutes. These standards must be met to utilize MSA funding, which the City plans to use to fund the project. While analyzing potential design options, an emphasis was placed on developing options that improve pedestrian safety to address community concerns and complete a connection identified in the City’s comprehensive plan. The project team, in conjunction with Interim Public Works Director David Swearingen, conducted three separate meetings with the Minnesota Department of Transportation’s (MnDOT) MSA office to discuss/refine potential design options and their conformance to MSA design standards. The following is a summary of the applicable design standards from Minnesota Rules for State-Aid Operations Chapter 8820 for Snelling Ave N which is a 40 mph roadway with an average daily traffic (ADT) of around 1,600: x Definition of Clear Zone –Clear zone is the distance which must be free of fixed objects and meet or exceed the minimum in-slope dimensions. x Definition of Reconditioning vs. Reconstruction –Reconditioning may include curb replacement along no more than 20 percent of the length of the project. Attachment A