5.4.B. SR 04-05-2010 - Laserfiche WebLink

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Memorandum Date: 2/25/10 60 Plato Boulevard East; Suite 140 St. Paul, MN 55107 To: Lori Johnson 763-786-4570, Fax 763-786-4574 From: John Anderson rd RE: 193 Avenue/Tyler Street Intersection – Burandt Proposal Overview Mr. David Burandt appeared at the February 16, 2010 City Council meeting and submitted a proposal to allow the City to grade back the slope in the southwest quadrant of the intersection of 193rd Avenue and Tyler Street on the Burandt property. A copy of this proposal is attached at the end of this memo. In exchange for allowing access to grade on the Burandt property, they are requesting chain link fencing be installed to allow the Burandts access to the City- rd owned property between 193 Avenue and their north property line. In his statement at the City Council meeting, Mr. Burandt is correct that his current request is very similar to what was being negotiated with the Burandts prior to negotiations breaking down. The City will remember that the original direction from the Council was to work with the Burandts to negotiate a scenario that allowed some grading on the Burandt property so a ten-foot bituminous trail could be installed on the south side of 193rd Avenue between Tyler Street and Xavier Street. When negotiations broke down, the decision was made to remove the bituminous trail and modify the design to eliminate the need for grading on the Burandt property. Existing Configuration As it currently exists there is a retaining wall constructed 18 feet south of the south curb line of rd 193 Avenue that provides sight lines needed for the intersection with Tyler Street. The slope from the base of this wall to the curb is relatively flat (5:1). The wall is 4 feet high at its mid point. The slope behind the wall is steeper (3:1) to connect to existing ground at the Burandt property line. The existing stop sign and stop bar on Tyler Street are set 30 feet south of the rd south curb line of 193 Avenue. Figure 1 shows the position of the stop sign as currently constructed. Figure 2 shows the view from a driver’s perspective on Tyler looking west from the current stop sign location. Sight Distance Measurement The sight distance required at this intersection is based on a formula in the AASHTO Policy on Geometric Design of Highways and Streets. This formula calculates the gap acceptance for a passenger vehicle given a number of factors including slope of road, reaction time, and number of lanes to cross. This calculation is based on the driver of the vehicle on the minor Street (Tyler Street) being located 14.5 feet south of the south curb line of the major street rd (193 Avenue). The AASHTO policy on the calculation of intersection sight distance BDM Project # 226069C