03-04-2019 Council Packet - Laserfiche WebLink

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WS – Item #1 WORK SESSION STAFF REPORT Work Session Item No. 1 Date: March 4, 2019 To: City Council From: Diane Hankee, City Engineer Dane Ekdom, WSB and Associates, Inc. Re: 12th Avenue Trail Project Background The City is considering a trail connection along 12th Avenue as requested by residents. The trail would extend from White Oak Road south 700 feet to an existing trail. This project would complete the trail system connection between the Trapper’s Crossing developments and the White Oak developments which also lead to the Birch Street trail systems. The speed limit along 12th Avenue is 45 MPH. As requested by Council, staff prepared a preliminary design and met with property owners along the corridor. The preliminary design is to install the trail on the back side of the ditch. A 7-foot-wide easement, from 3 property owners, would need to be acquired on the east side of 12th Avenue to construct the trail and maintain the existing drainage. Temporary easement would also be necessary during construction to match existing grades. At the meeting with the property owners, the right of way and construction limits were staked and proposed improvements were reviewed on site. During the meeting it was determined that we could work around most of the trees. There maybe a couple of small trees at the south end would get moved/replaced. There are also structures at driveways and power poles that would be worked around. There is an existing low area in the ditch that may require one driveway culvert be replaced. The proposed project also includes the installation of a short extension of storm pipe to match the trail in at White Oak Road. At the meeting we also went over the easement acquisition process with them. Generally, most of the property owners were willing to work with the City on the project. As requested by the Council, two additional design options were reviewed for this project: 1. A curb & gutter option, where curb & gutter would be installed along the east side of 12th Avenue and the trail would be installed 2.5 feet off the back of the curb. This option would require storm sewer and a ponding system which also then requires permitting. Catch basins would be installed within the curb line to direct