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G. The IC shall acquaint himself with all site conditions. Should utilities not <br />shown on the plans be found during excavations, the IC shall promptly <br />notify the Owner for instructions as to further actions. Failure to do so will <br />make the IC liable for any, and all damage thereto, rising from his <br />operations subsequent to discovery of such utilities not shown in plan. <br />H. Where the grade or alignment of the pipe is obstructed by existing utility <br />structures, such as conduit, ducts, pipe branch connections to sewer <br />mains, main drains, water services, etc., the obstruction shall be <br />permanently supported, relocated, removed, or reconstructed by the IC in <br />cooperation with the Owner of such utility. No deviation from the required <br />line or grade shall be made without the written direction of the OAR. <br />3.02 PIPE INSTALLATION <br />A. The IC shall stake out the location of each run of pipe, sprinkler heads, <br />and valves prior to trenching. <br />B. Excavation shall be unclassified and shall include all materials whatsoever <br />encountered in the excavation of trenches for pipe installation. The trench <br />shall be of sufficient width and depth for installation of the pipe as <br />indicated herein. The IC shall cause minimum disturbance to all existing <br />conditions wherever possible; the IC shall bore under existing pavement <br />and sidewalks rather than cut and restore. No pavement shall be cut <br />without the OAR's permission. <br />C. Pipe shall be delivered and stored on the job site with suitable protection <br />against any damage to pipe and fittings. <br />D. Trenches shall be made wide enough to allow a minimum of four inches <br />(4 ") between parallel pipelines. Parallel lines shall not be installed directly <br />over one another. No lateral line shall be installed in the mainline trench. <br />Trenches for pipe lines shall be made of sufficient depths to provide the <br />minimum cover from finish grade as follows: <br />1. Thirty- six -inch (36 ") minimum cover over mainlines. <br />2. Thirty- six -inch (36 ") minimum cover over control wires from <br />controller to valves. <br />3. Eighteen -inch (18 ") minimum cover over lateral lines to heads. <br />4. Maintain all warning signs, shoring, barricades, flares, and red <br />lanterns as required by the Safety Orders of the Division of <br />Industrial Safety and any local ordinances and codes. <br />07106 02810 -16 05 -5564 <br />