ITEM 16 ATT 4 - Laserfiche WebLink

The project plans show the approximant location of curb and gutter removal limits. Actual limits shall be marked in the field and verified by contractor prior to saw cutting, Some of the ramps that are located at the intersection of sloping streets (typically anything greater than 5%) will generally require enlargement of the side areas of the ramp or extension of the ramp "wing" to ensure meeting ADA and City Standards. This longer wing requirement typically happens only on one side of the ramp, however, it can occasionally also happen on both sides of the ramp, depending on the actual terrain and location of the ramp. At these locations, the final grades will be confirmed and/or provided by the engineer during construction and shall be considered by the contractor when submitting their bids. The City shall limit the wing length on each side of the ramp to a maximum of 15 feet, plus the additional length to the nearest control/score joint. The enlargement or extension of ramp wings (to the above-mentioned limit) typically only happens at sloped streets and shall be considered part of the limit of work for the ramp; no separate payment shall be allowed. ADA ramps that are to be removed shall include the removal of existing groove marks and shall be considered part of the limits of work for the ramp; no separate payment shall be allowed. At Gibraltar Drive and Willow Road ADA ramps replacement involve the removal and resetting existing brick paver on cross walks. The Contractor shall remove and salvage these brick pavers for resetting upon the completion of ADA ramps replacement. Limited brick pavers are available at the City's Operation Service Center for resetting if needed. The limit of pavers removal and resetting varies from 1 foot to 3 foot from the ADA curb ramp to provide a smooth conform at a cross slope not greater than 4%. Resetting pavers shall be considered part of the work and no separate payment shall be allowed. Where existing traffic and/or street light poles are within the new concrete improvement, concrete shall be poured to the bottom of the existing base of the traffic signal and/or streetlight with an expansion joint around existing pole foundation. Non -Shrink grout shall be placed between traffic and/or streetlight base plate and new concrete pad and/or existing traffic/lighting footing. No separate payment shall be allowed. The contractor is made aware that the existing concrete curb and gutter proposed for removal and replacement generally have water ponding issues. It is therefore important that the contractor, prior to the removal of the concrete as called out on the plans, complete the field verification by using a leveling instrument of their choice, that there shall be a positive flow achieved with the proposed removal and replacement of the existing concrete curb and gutter. Any discrepancies between the field verification and the proposed work as identified on the plans shall be brought to the attention of the Engineer. The objective is to remove the low points and high points that cause water ponding; however, it is also necessary and important to make sure that ponding is not just transferred or shifted to an adjacent area. The only final product meeting this positive flow verification requirement shall be considered for payment. Annual Curb & Gutter for Street Resurfacing Project, CIP No.25509 Page 53