Minutes - Public Works Committee - 06/18/2001

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Further discussion: Councilmember Hendriksen inquired as to why a stop sign could not be placed at 147th Avenue to try and slow traffic down half way through Waco Street. City Engineer Olson replied that he personally has not looked at the intersection of 147t~ Avenue and Waco Street, but he was fairly sure that it would not meet the warrants for a stop sign. Public Works Supervisor Reimer noted that the intersection is similar to I49`~ Avenue and Waco Street. City Engineer Olson requested more time to look at the intersection. Motion carried. Voting Yes: Mayor Gamec, Councilmembers Hendriksen, Anderson, Kurak, and Zimmerman. Voting No: None. Case #2: Request by Resident to Install a Three-Way Stop Sign at 146th Avenue NW/Iodine Street NW City Engineer Olson stated that it was brought to staff's attention by a resident of the Wood Pond Hills subdivision that a sight restricted intersection exists on 146th Avenue and Iodine Street. There is also a bus pickup for school children at the intersection which leads to more uncertainty. Staff visited the site and performed a speed and volume count near the intersection to check if volume would warrant the placement of an all-way stop sign. The results of the speed and volume indicate an average speed of 23 mph and approximately 500 vehicles per day on Iodine Street. With the amount of information presented, it is not possible to determine whether a three- way stop condition would be warranted under the volume criteria cited in the manual, but it is highly unlikely based on the information provided by the speed trailer. Placement of stop signs require meeting warrants which are defined in the manual of Uniform Traffic Control Devices unless a "combination of high speed, restricted view, and serious accident record indicate a need for control by the STOP sign." Staff did also visit the intersection to check on sight visibility issues. Staff presented a drawing of the intersection with the profile of Iodine Street NW. It appears that the intersection does have sight restrictions due to it being on the crest of a hill and for that reason staff recommended placing a stop sign on the Iodine Street NW leg of the intersection. Staff also recommended the installation of advanced warning signs for the east and westbound motorists to let them know of a blind intersection ahead. Staff also had contacted the school district to talk about the possibility of moving the bus pick-up to another area due to the concerns expressed combined with the sight restrictions at the intersection. Motion by Mayor Gamec, seconded by Councilmember Kurak, to recommend that the City Council authorize the installation of a stop sign north bond on Iodine Street as well as the installation of advanced warning signs for the east and westbound motorists. Further discussion: Councilmember Hendriksen stated that the Council is aware of the development being proposed for the Laws property and Iodine Street will be the major connection to that development. Given all that is proposed to happen along Iodine Street he thought that it might make sense to do a three-way stop at this time because it will be needed eventually. City Engineer Olson replied that he did not think there will be large increase in the amount of traffic along Iodine Street with the development. The main concern with the Public Works Committee/June 18, 2001 Page 5 of 13