Admin Order 58-16-01 - Laserfiche WebLink

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Tubular markers shall be installed on the outside corners of the corral adjacent to the vehicular travel way. A standard 4 -inch thermoplastic line shall be installed the length of the corral adjacent to the vehicular travel way. R. Partial -Street Construction When less than full -street improvements are approved by the City, the construction shall provide a minimum 20 -foot paving width. The crown of the pavement shall be on the centerline of the future pavement width. Grade from the centerline to gutter of the existing street shall not be flatter than 1 and 1/2 percent or steeper than 4 percent. Cross sections shall be provided at 50 -foot intervals where a constant cross slope is not maintained. S. Pavement Design 1. Asphalt -Concrete (AC) Pavement New AC pavement and AC reconstructions (both described below as "new pavement" or "new streets") shall be designed as described herein. The design method for new pavement and for pavement rehabilitation and strengthening of existing streets shall be as described in the 1993 AASHTO Guide for Design of Pavement Structures (1993 AASHTO Guide) with the 1998 supplement; with the following exception: the City's nomographs provided in Appendix F may be used for new and reconstructed streets classified as local streets or neighborhood collector streets. Software to calculate pavement depth using the AASHTO-approved methodology is available online at www.aashtoware.org. The design requirements below apply to new pavement and pavement rehabilitation/strengthening. New AC pavement and AC reconstructions may be designed as "full -depth" AC pavements if recommended by a pavement engineering report and supported by soil characteristics testing and soil support testing. Full -depth asphalt concrete pavement is asphalt concrete paved directly on a compacted firm and unyielding subgrade without a base rock layer other than an optional 2 -inch to 4 -inch leveling course as desired. Full depth AC design is used to minimize subgrade excavation during construction in areas where AC construction work can be supported by untreated or stabilized subgrade. Full depth AC design may be proposed for AASHTO subgrade soil types A-1 through A-4. Full depth design may also be proposed for AASHTO soil types A-5 through A-6 provided that soil testing and/or falling weight deflectometer (FWD) back calculation data proves that the resilient modulus is at least 7,500 psi, or, in Public Improvement Design Standards Manual, 2016 Page 2-30