Laserfiche WebLink
<br /> <br /> <br /> <br /> engineering planning environmental construction 701 Xenia Avenue South <br /> Suite 300 <br /> Minneapolis, MN 55416 <br /> Tel: 763-541-4800 <br /> Fax: 763-541-1700 <br /> <br />St. Cloud  Minneapolis  St. Paul <br />Equal Opportunity Employer <br /> wsbeng.com K:\02029-790\Admin\Docs\Outlet Alternatives Memo_Sequencing.doc <br />Memorandum <br /> <br /> <br />To: Nicholas Tomczik, Rice Creek Watershed District <br /> <br />From: Alison Harwood, WSB & Associates, Inc. <br /> Dustin Simonson, WSB & Associates, Inc. <br /> <br />CC: Pete Willenbring, WSB & Associates, Inc. <br /> <br />Date: January 22, 2015 <br /> <br />Re: Outlet Alternatives <br /> Northeast Area Drainage Study <br /> WSB Project No. 2029-79 <br /> <br />The City of Lino Lakes is proposing to create a drainage channel between Interstate 35E (I-35E) <br />and Peltier Lake. Lino Lakes is considering different alternatives to complete this project. <br /> <br />Two pipe options are being looked at for placement within the Mattamy Homes parcel. These are <br />listed as Eastern Pipe Option 1 and 2 on the attached Figure 2. Eastern Pipe Option 1 flows <br />northwest through the Mattamy Homes parcel until it straightens out on the north end and under <br />20th Avenue. Eastern Pipe Option 2 starts in the same location as Eastern Pipe Option 1. From <br />there Option 2 will flow southwest and continue under 20th Avenue. West of 20th Avenue, <br />multiple options for continuing the drainage are available. These options are summarized below: <br /> <br />Proposed Action: <br />The proposed action is to create a drainage channel from I-35E to Peltier Lake. <br /> <br />Project Purpose and Need <br />The purpose of the project is to address a failing tile and ditch system that currently exists west <br />of I-35E within the benefitted area. The design generally consists of the installation of a 48 inch <br />pipe under I-35E to carry water overflowing from the watersheds east of I-35E to the west <br />toward Peltier Lake. The pipe size is then upsized to a 72 inch to carry water from areas tributary <br />to the system on the west side of I-35E to Peltier Lake. <br /> <br />Wetland Review <br />Wetlands within the project area were determined using both Level 1 and Level 2 methods. <br />Level 2 wetland delineations were received from Rice Creek Watershed District for various <br />locations within the project area. Remaining areas adjacent to the proposed alternatives were <br />evaluated using Level 1 methods, which included an aerial photo review (1991 – 2013) and <br />review of desktop data (NWI, DNR Public Waters, Soil Survey, Contours). Figure 1 shows the