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SPECIAL CONDITIONS FOR <br /> ENCROACHMENT PERMIT <br /> 1. Maintain traffic controls for all roads. Traffic control delays shall not exceed 15 minutes. <br /> Two-way traffic shall be maintained during non-working hours with excavated areas backfilled or <br /> plated. During working hours, two-way traffic control shall be maintained with one lane open and <br /> appropriate flaggers. Flaggers shall have two-way radio communication. Eastbound Durham <br /> Ferry Road traffic shall not be allowed to que into the Koster Road intersection. <br /> 2. Final paving for trench repair or road resurfacing shall be per Caltrans' specifications. <br /> 3. 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 /> 4. The contractor shall use Scan 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 />