1992-012 Council Ordinances - Laserfiche WebLink

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property is subdivided, in which case the dedication of a half street may be permitted. (10) Private Streets. Private streets shall not be permitted, nor shall public improvements be approved for any private streets. Subd. 2 Detailed Design Standards (1) Pavements. The minimum standard for pavement design shall be as follows: (a) Soil borings for each new street or improved street shall be required to facilitate design and provide bidding information to the construction contractor. The location and minimum number of such borings shall be as required by the city engineer on each project. (b) A Stabilometer R-Value shall be determined from the soils samples by a qualified soils engineer and his calculations presented to the city engineer. Because of the generally high and variable water table in Lino Lakes,. the R-Value shall consider the worst possible soil moisture conditions. (c) The R-Value shall be used to determine the necessary thickness of the gravel base, bituminous binder course, and bituminous wearing course. (d) Streets shall be kept three (3) feet above the water table and design flood level of adjacent ponds, as measured from finished grade, where soil borings or other data indicates that the street subgrade may become saturated within three (3) feet of the finished street grade. Special construction methods such as use of select granular borrow subbase and/or properly designed drain tile may be employed as an alternative with the approval of the city engineer. (e) All residential streets being constructed or improved shall be designed for a minimum of seven (7) ton design loading and shall be capable of carrying a minimum of 400 motor vehicles per day. If more than 400 vehicles per day are anticipated, base and pavement design shall consider the projected traffic. Collector, commercial and/or industrial streets shall be designed for a nine (9) �.• ton loading. 52