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4. Unsatisfactory restoration of the right-of-way, as determined by the Engineer, <br /> shall be promptly corrected by the utility. If necessary, unsatisfactory restoration <br /> may be corrected by the County and billed to the utility. <br /> 5. Reinforcement, protection and security of existing utilities and facilities under <br /> construction are the responsibility of the permit holder. <br /> 6. In roadway restoration, the design shall consider the protection of existing <br /> utilities without sacrificing the geometrics of roadway design. <br /> B. Traffic Control and Public Safety <br /> 1. Traffic controls, including detours for utility work, shall conform to the most <br /> current edition of the MUTCD and any other requirements by the County Traffic <br /> Engineer. <br /> 2. All construction and maintenance operations shall be planned to minimize <br /> interference with traffic flow. On heavily traveled roads, no activities interfering <br /> with traffic flow will be allowed during peak hours. Work shall be planned so <br /> that closure of intersecting streets, road approaches, or other access points is <br /> minimized. <br /> 3. Adequate provisions shall be made to safeguard any open excavation or <br /> construction site, including barricades, lights, flaggers, or other protective <br /> features in accordance with the requirements of the Washington State <br /> Department of Labor and Industries. <br /> 4. The storage of materials, including spoils, on roadways shall not be allowed <br /> unless identified on the traffic control plan with appropriate protective measures. <br /> Parking of construction or personal vehicles on roadways shall be kept to a <br /> minimum. <br /> S. Any signing or mailboxes removed during construction shall be replaced daily. <br /> Temporary signing and channelization may be required. <br /> C. Emergency Repairs <br /> If emergency repairs disturb the right-of-way, the right-of-way shall be restored <br /> immediately. Approval of the final restoration of the right-of-way shall be obtained from <br /> the County as quickly as possible. <br /> D. Striping Replacement <br /> All traffic striping and walkway delineation removed during a construction project shall <br /> be replaced. Temporary striping shall be used on a limited basis and only as approved <br /> by the Traffic Engineer. All permanent striping and channelization shall be installed by <br /> County forces at the expense of the utility or permit holder. If County forces are <br /> unavailable to perform the striping installation within an appropriate timeframe, the <br /> utility or permit holder shall contract for the striping installation. Traffic Operations shall <br /> be contacted at least 2 days in advance of installation to verify channelization layout. <br /> E. Final Cleanup <br /> 1. The responsible utility or permit holder shall care for adjacent areas in compliance <br /> with Sections 1-04.11 "Final Cleanup" and 8-01 "Erosion Control" of the <br /> WSDOT/APWA Specifications. <br /> 8-17 Engineering Design and Development Standards <br /> September 17, 2021 <br />