Minutes - Public Works Committee - 05/15/2012

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City Engineer Tim Himmer reviewed in his staff report that there is a low area across three lots th south of 148 Lane that was created as a stormwater pond for the area and wetland mitigation for the development. There is a storm sewer inlet to this area along the west edge, which drains the subdivision to the north. There is also an outlet from this area on the east end that connects to a th pipe that runs easterly and parallel to 148 Lane. The invert of this outlet pipe is approximately 2.5 feet above the low point in the basin. The outlet pipe also connects to a structure in the th boulevard of 148 Lane that takes storm water runoff from the roadway and directs it easterly as described above. The inverts on both these pipes are at approximately the same elevations, and therefore water may be entering this basin that is not intended to flow there from the stormwater system. It was also observed that the basin has several undulations in the ground surface that do not allow the water to evenly spread out across the entire drainage and utility easement; basically there appears to be three separate, somewhat isolated basins. th Mr. Maul, 5590 148 Lane stated he prefers Option #3 in the proposal and along with that a backflow preventer and raise the elevation so the water can drain out. th Mr. Saba, 5630 148 Lane was present to discuss throughout the twenty five years all the sediment that is setting throughout the back of the homes. Councilmember McGlone questioned the gate valve. Motion by Chairperson Backous, seconded by Councilmember McGlone, to recommend to City Council staff the street and only allow water to exit the basin through this structure, thereby eliminating additional flow to the area and include this as part of the change order to IP 12-24; 2012 Storm Sewer Improvements. Motion carried. Voting Yes: Chairperson Backous, Councilmember McGlone. Voting No: None. Absent: Councilmember Elvig. th This is being brought forward as a separate case at the June 12, 2012 City Council meeting.] Case #5.4 Consider the Installation of Stop Signs and an In-Street Pedestrian Crossing th Sign near 150 Lane NW and Ute Street NW City Engineer Tim Himmer reviewed in the staff report that on April 3, 2012 staff received a th petition signed by twelve property owners in the neighborhood near the intersection of 150 Lane NW and Ute Street NW. They are requesting the installation of stop signs at this intersection, consideration for the installation of an in street pedestrian crossing at the location of thth the existing City trail crossing on 150 Lane, and reduction of the speed limit on 150 Lane to 15mph. Motion by Councilmember McGlone look at the possibility of raising striping to cingulate the choker and monitor it at the pedestrian crossing. City Engineer Himmer stated this concerns him, the motorists will see striping however the pedestrian will see it as a choker and think they have the right to be standing in the street. Public Works Committee / May 15, 2012 Page 5 of 7