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c. The Contractor shall be responsible for pruning any roots or branches from City street trees only at the direction of the Public Works Tree Supervisor or designee. Tree roots shall be removed only as directed by the City's project manager. Tree roots shall be exposed without damage to roots to allow inspection by the City. Any roots that are three (3) inches in diameter or smaller may be cut as needed. Any roots larger than three inches in diameter must be inspected by City prior to cutting. Roots shall be cut using hand tools, chain saws or stump grinder at the direction of the City. d. Contractor is responsible for repairing/replacing existing drain line and irrigation systems that are damaged during demolition or construction. e. All utility trenches are to be TEE Trenched as per City Engineering Standards. 2. Contractor shall replace/install sidewalks, asphalt, curbs/gutters, and ADA ramps. a. Removal of concrete curb and gutter work shall include the saw cutting, removal and disposal of the particular item specified, and shall include the base, and all its appurtenances to the appropriate depth below finished grade for the thickness of the concrete item, plus four inches thick base rock. Sites may require greater or lesser excavation and greater tree root removal by Contractor if the existing grade has been raised above or settled below final grade. b. Saw cutting shall be made: § At the end of the sidewalk, curb and gutter, and wheelchair ramp construction § At the nearest score line on sidewalks § At the outside edge of the border on wheelchair ramps § To the full depth of the concrete to insure clean separation of concrete and no resultant spalling. c. Work shall include all grading, the appropriate width and 4" depth of Class 2 aggregate base, subgrade compaction, base compaction, expansion joint material, dowels, slip dowels, forming, concrete pouring, scoring, finishing, form stripping, removal of concrete pour -over, and topsoil backfill. Sidewalks may be relocated as designated by the City's project manager. d. Contractor is responsible to check and monitor all concrete pours for graffiti or damage. Sidewalk finish that contains graffiti or damage will not be accepted as complete. e. Work shall include the saw cutting, removal and disposal of the particular concrete item specified, and shall include the base and all its appurtenances to the appropriate depth below finished grade for the thickness of the concrete item, plus four inches thick base rock. Concrete removal shall include any thickness of concrete encountered during REV: 02-08-19 EI Page 7 of 11 ATTY/AGR.2019.034/Bay Area Paving/Concrete/Asphalt