5.10. SR 02-23-2004 - Laserfiche WebLink

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Howard R. Green Company Project No. 822530-0030 Feasibility Study Yankton Street Road Improvements Elk River, MN bituminous base, and 6 inches of aggregate base. The cul-de-sac would be paved with a 45-foot radius. No soil borings have been obtained at this time, and the pavement section would be dependent on the findings of a geotechnical report. Driveways would be reconstructed as necessary to match the new street. B. Storm Water Drainaqe Improvements The reconstruction and widening of Yankton Street would affect the way storm water runoff is routed along the west side of the street. Portions of the embankment would be cut back and portions of the ditch would be filled in (see Exhibit 3). Most of the ditch along the west side of Yankton Street may need to be regraded to promote proper drainage to the proposed storm water runoff system outlined below and depicted on Exhibit 4. The proposed storm water runoff system would consist of the following: o A culvert under the new cul-dE the new cul-de-sac to the ditch A culvert with two catch basin: into the front yard at 18741 approximately 50 feet to the existing City additional rig flooding of the A culvert would be remove( rry runoff from the north under side of Yankton Street. existing culvert that drains Moving this culvert system allow it to be constructed within is would help reduce the amount of needs to acquire, and help eliminate the 18741 Yankton Street. installed to replace the existing culvert that the ditch being regraded. A culvert with two catch basins at 18646 Yankton Street conveying storm water from the ditch on the west side of Yankton Street and from the roadway to the Elk River. V. Design Issues The four primary issues involved with widening Yankton Street are: · Re-establishing the right-of-way. · Possible impacts to wetlands. · Obtaining additional easements and right-of-way. · Clearing of trees and brush along both sides of Yankton Street, and regrading the right-of way. This report examines each if these issues in the following sections: Preliminary surveys indicate some discrepancy in the relationship between the platted right-of-way, and the existing road. Parts of the existing road appear not to be within the platted right-of-way (Exhibit 2). Parts of the road appear to be too far east, encroaching on the properties on the east side of the street and parts of it appear to be too far west thus encroaching upon the properties on the west side of the street. If this project goes forward significant survey work will need to be done to determine exactly where the right-of-way is in relation to the existing road. 2