12-09-1996 Council Packet - Laserfiche WebLink

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MIiMlTES OF THE REGULAR ORONO CITY COUNCIL MEETING HELD ON NOVEMBER 25, 1996 {U\B- County Road 15 Orono Lane to Wayzata Border - Continu -d) Goetten indicated when the plan was originally reviewed, the clear zone was discussed and a variance secured She asked why this was not required here Polaczyk noted there were two types of clear zones, one being rural and one suburban A 20' zone is required in the suburban where berms, curb, and gutter are required In the rural as is the case in this particular area, a 30' dear zone is required The suburban zone is applied elsewhere on this roadway Goetten stated that it had originallv been indicated the trees would be lost due to the wetlands and questioned what the benefit was Kelley asked if the roadway was being moved at this location to the north. Guy Nolan of the design team said it would move 5 meters (about 1 5 ’) from the edge of the bituminous to the other edge Polaczyk indicated this movement would also reduce the impact on the properties on the south side. Goetten said she was disturbed, after having asked for this design several times, to be seeing it for the first time at this meeting Goetten felt it would be imprudent to make a decision without reviewing the actual design Jabbour suggested hearing the information presented and tabling any decision to the next Council meeting. Polaczyk reiterated the movement of the road was due to the recommendation of the geotechnical consultant. Kelley asked if the movement of the road to the north was a result of the poor soils. Polaczyk said this was a partial reason. Kelley asked how deep these materials are located Nolan said the depth is 2 meters on the north to 3-1/2 meters on the south, which is 6 ’ to 10-12' Kelley asked if the materials w ould be excavated Polaczyk said the materials would be floated and then surcharged. Surcharging is adding a fabric material and weighting it down which compresses the soils. Then after a time duration, the surcharge is removed and the road is built to proposed elevations. Nolan indicated the time length for the surcharge to be about 6 months. It would be completed in two stages. Two lanes of traffic would be moved to the south by using the existing shoulder and one lane during the time the north side is being surcharged. This would allow the roadway to remain open Goetten said it was her understanding that the roadway would move 12 ’ to the north. Then the distance changed to 20'. Polaczyk said the amount is now 16'. Nolan explained that the alignment is shifted 10' to the north and the left turn lane shifts it slightly more.