Oakland Street Lighting Conversion Project - Navigator

APPENDIX BThe conduit runs shall be as shown on the attached plans. The line to be followed by each run ofconduit, as indicated on the plans, is necessarily approximate. The Contractor shall determine and makesuch deviations from the lines indicated on the plans as may be reasonably necessary in order to clear otherunderground utilities or structures, subject to the Engineer’s approval. It is not contemplated or intended thatany existing underground pipes, conduits, or other existing underground structures shall be changed ormoved in order to permit carrying out the work covered by these specifications.a. All conduits shall be installed beneath official sidewalk or roadway areas excepting riser conduits.Conduit placed in the ground under sidewalks shall, as far as practicable, be placed at a minimumdepth of 18-inches below adjacent curb grade. Conduit under sidewalks shall be placed as near theadjacent existing curb position as is practicable without making repeated bends to clear poles, watermeters, and similar obstructions.b. Conduit may be laid on top of the existing pavement within curbed medians being constructed on topof said pavement.c. Conduit placed under existing pavement may be installed by means of a rock-cutting trencher.Conduit shall be placed at a minimum depth of 18 inches below the roadway surface, with aminimum 6" concrete cap on top of conduit.The Contractor shall install as per Plans, Specifications and Standard Details and be entirely responsible forthe correct conduit installation method i.e. open trench, in pavement cuts, or in holes bored through theground from one excavation to another.The following restrictions shall apply in appropriate circumstances:a. The Contractor shall consult with the proper utility companies or agencies to determine the locationof their conduits, ducts, underground pipes, cables, sewers or other underground structures.b. The Contractor shall open, by hand digging, test holes to locate existing conduits, cables, sewers orother underground structures which could be damaged by the new installation.c. No conduit shall run through catch basins, drainage ducts or other underground installations.d. The Contractor shall have full responsibility for repairing any underground structure damaged byoperations.e. The City shall have the right to require any additional inspection holes the Engineer finds necessary.f. Tunneling under streets or trenchless boring will be allowed in accordance with the Plans andSpecifications, and as permitted bythe Engineer. The Contractor is required to obtain video scan ofall sewer laterals before commencement of the boring and at the end of the bore and per thedirection of the Engineer.g. Each conduit run terminating in a Pacific Gas and Electric (PG&E) Company structure shallterminate not less than one-half (1/2) inch or more than one inch short of the inside wall, leaving arecess which shall be grouted smooth into a funnel shape. The Contractor shall schedule and meetwith PG&E to determine the exact location where the conduit will terminate in the PG&E structure.The Contractor shall repair any damage to the structure walls to the satisfaction of PG&E.Extreme care must be exercised to avoid stepping on cable or supports or otherwise injuring cables. Nosmoking or other open flames will be allowed in manholes.307-13 WIRES, CONDUCTORS AND CABLES.ADD NEW PARAGRAPHS TO THE END OF SUBSECTION 307-13.1 TO READ:307-13.1 General.a. Wire and cable shall be installed in continuous lengths from luminaire to curb box and from curb box tocurb box without intermediate splices.b. The Contractor shall provide sufficient slack wire in curb boxes so that finished loops may extend at leasttwo feet beyond the enclosure limits.c. Wire, cable and pull the tape or rope shall be carefully pulled in at the same time so that crossings andwrapping are avoided. The conduit system is designed as a multipurpose system; additional electricsystem will be installed in available conduit space.d. Cable entering a curb box shall be protected from water during the construction period. The Contractormay be required to replace part or all of a cable length when an unprotected end has been in water.e. Splicing chambers and fuse kits shall be carefully assembled so that they are watertight.f. The Contractor shall seal conduit ends with sealing compound after wire is installed. Sealing compoundshall be non-hardening, putty-like, adhesive material.g. Water and/or a special lubricant approved by the Electrical Services Division are the only permissiblelubricants.Oakland Street Lighting Conversion ProjectProject Special Provisions D-36 Bid Documents: Feb 2012 Update