Agenda - Public Works Committee - 06/18/2019

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�. Mr. Aberle confirmed that he would be satisfied with the direction for the two eight-inch culverts in the driveway with additional grading of the driveway. He stated that he will also allow entry onto the property to complete the topography. He confirmed that he would provide permission for the grading of the driveway and topography to be completed. It was noted that the driveway improvements may not occur until spring, pending frost and cold weather conditions. The Committee and Mr. Aberle reached consensus for Mr. Thompson to complete the driveway improvements including grading and two eight-inch culverts, and Mr. Aberle provided his permission for Staff to enter his property to collect topographic data along his west property line and around and adjacent to his garage and driveway. City Engineer Westby noted that Staff will provide an update to the Committee in.February since the January meeting is canceled. 5. COMMITTEE BUSINESS (Continued) 5.02: Consider Request to Modify Traffic Control at Bunker Lake Boulevard, Puma Street and Rabbit Street Intersection City Engineer Westby stated that during the November 27, 2018 City Council meeting, a resident living at 14942 Quintana Street NW in the Riverstone residential development questioned the value of the all-way STOP intersection control recently installed at the intersection of Bunker Lake Boulevard, Puma Street and Rabbit Street, and requested that the City consider modifying the traffic control at this intersection. The resident told Council he feels the all-way STOP is unnecessary at this time and recommended that all of the STOP signs be removed and replaced with a YIELD sign on southbound Puma Street. He said he also felt that a flasher signal might be appropriate for the pedestrian crossing at the intersection. He stated that during the five- months he has lived in Riverstone he has never met another car at this intersection,nor has he ever seen a pedestrian or bicyclist use the crosswalk. He also stated he often sees Riverstone residents running the STOP signs and is concerned people will get used to running the STOP signs and will continue to do so once the area more fully develops, and the STOP signs are warranted. City Engineer Westby provided historical crash data for the intersection and reviewed the posted/statutory speed limits on each leg of the intersection. He also reviewed the traffic volumes, which were most recently recorded on each leg of the intersection in 2015. City Engineer Westby stated that staff discussed the property owners concerns with Bolton& Menk,the design engineer for Improvement Project#18-05 under which the STOP signs were installed. Bolton&Menk stated that the all-way STOP control was based on the best information available at the time related to intersection geometrics and traffic volumes in and around the intersection at the time it opened. Throughout the plan preparation process, Rabbit Street was still considered a future street and in order to obtain State Aid approvals, STOP signs were required on both Bunker Lake Boulevard and Puma Street. Development timing and the resultant traffic growth were unknown at the time plans were developed, and traffic forecasts Public Works Committee/December 18,2018 Page 9 of 11