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Special Conditions for -2- <br /> ENCROACHMENT PERMIT <br /> 13. All trenches shall be completely backfilled or shored and plated at the end of each workday, and <br /> the roadway restored to two-way traffic. If plating is to be used, a trench shoring and plating plan <br /> suitable for traffic loadings shall be prepared by a registered civil engineer and submitted for prior <br /> approval by the County. <br /> 14. The contractor shall use San Joaquin County Standard R-29 when backfilling trenches within the <br /> County right-of-way. Where the existing road structural section is below standard, a minimum <br /> section of 3 inches of asphalt concrete over 8 inches of aggregate base shall be required. <br /> 15. Temporary pavement shall be provided for all trench areas within three days of pavement <br /> removal or by Friday of each week, whichever is more restrictive. <br /> 16. Final trench paving shall be placed when the length of temporarily surfaced trench exceeds 1,500 <br /> linear feet or by segment of road as determined by the County. Final trench paving will also be <br /> required to be placed when interruptions or delays of the work exceed two (2) weeks. <br /> 17. School buses shall be passed through the work zone with minimal delays. <br /> 18. County roads shall be kept clean from mud and debris at all times along the access points and <br /> work zone areas during entire project. All standard roadway striping and signage shall be clearly <br /> visible, maintained and restored throughout the construction zone during and after the project. <br /> 19. In addition to standard dust control measures, streets shall be maintained in a clean condition, <br /> free of dirt, mud and debris during construction activities. The contractor shall provide daily, or as <br /> needed, street sweeping using a modern mechanical or vacuum-assisted street sweeper. <br /> 20. The contractor shall not conduct construction operations in rain or heavy fog conditions. <br />