Agenda - Council - 02/10/2015 - Laserfiche WebLink

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4.1.4 Other Considerations Driveways: Residential driveway aprons will need to be reconstructed with this project. The limits of construction will vary with each driveway based on the elevation of the street abutting the driveway apron, the pavement type, and the locations of existing pavement joints. During design, staff will evaluate the construction limits for each driveway and will incorporate this into the plans. But as with all street reconstruction projects, the exact limits of construction will be determined in the field during construction. Right -of -entry forms will also be needed from each residential property owner to complete any work outside City right-of-ways and easements. Aggregate Base Class 5 (modified): The City owns a stockpile of aggregate base class 5 modified which is located on the future Public Works campus property. This material meets the City's aggregate base class 5 modified specifications and is therefore proposed to be used for all street construction with this project to reduce costs. Parking Restrictions: Parking is not currently restricted along either street segment, and parking restrictions are not being proposed at this time. 4.2 Stormwater Treatment Stormwater runoff will be conveyed from Garnet Street and 168th Avenue via the concrete curb and gutter into the proposed storm sewer system. Runoff in the storm sewer system will then be discharged into the existing drainage swale north of 168th Avenue which drains to the low point east of Garnet Street on private property. This low point is encumbered by an existing drainage easement. The existing CMP culvert that crosses under Garnet Street to convey stormwater runoff from the west to the east is proposed to be replaced with a concrete culvert. Since the street is being replaced at its current width there will be no net increase in connected impervious area or stormwater runoff volumes due to this project, though runoff will discharge more quickly due to the use of storm sewer pipes. But as previously mentioned, no stormwater ponding improvements are proposed with the project but the opinion of probable costs includes a contingency cost of $40,000 for stormwater ponding in case the Lower Rum River Watershed Management Organization requires ponding with the project. 4.3 Water Main Improvements Staff recommends constructing trunk water main improvements with this project due to the maintenance benefits realized by looping watermain. Service requests may also be received from residents who wish to connect to City water to address concerns about failing wells, or if they simply wish to take advantage of the cost savings that can be realized by connecting to City utilities during street reconstruction projects. Feasibility Report Garnet Street and l68`" Avenue Reconstruction City of Ramsey Project No. 13-10 Page 12