11831 AIRPORT RD WHOLE SITE FILE 2020-01-21

Section 8-20.3(11), is revised as follows: In the fourth paragraph, replace all references to "Contracting Agency electronics technician" with "Operating Agency signal technician". The following is added to the end of Section 8-20.3(11): On the same day, and following successful turn on, the Contractor shall adjust all optically- programmed signal heads and all louvered signal heads, as directed by the Engineer. Additionally, the Contractor shall remove all conflicting signs and signal equipment not specified to remain, as directed by the Engineer. Fiber Optic Cable Testing Fiber Optic Cable Testing is required for the bid item, "SR 527 at 208th Street SE (SR 524) Temporary System AND Traffic Signal Modifications, Complete," which shall include the following two systems: "SR 527 at 208th Street SE (SR 524) Temporary Traffic Signal System, Complete"And "SR 527 at 208th Street SE (SR 524)Traffic Signal Modifications, Complete." Fiber Optic Cable Testing is also required for the bid item "Relocate Existing Interconnect— ", at each of the following locations: • SR 527 at 196th Street SE Southbound • SR 527 at 196th Street SE Northbound • SR 527 at 164th Street SE Northbound • 128th Street SW at 4th Avenue W. Northbound/Westbound • Airport Road at SR 99 Southbound • Airport Road at 112th Street SW Southbound • Airport Road at 100th Street SW Southbound • Airport Road at Kasch Park Road Southbound Prior to the removal and re-installation of existing fiberoptic cable as part of the Small Cable Vault installation shown on the Plans, the Contractor shall conduct fiberoptic cable testing in the presence of the Engineer to determine the condition of the existing cable fibers and to document these conditions as described herein. The Contractor shall also conduct fiberoptic cable testing (in the presence of the Engineer) of the existing cable fibers after they have been re-installed, as identified in the Contract, and document the results. Should the results of"before removal" and "after re-installation" testing indicate that damage to the cable has occurred, the Contractor shall, at no additional expense to the Owner, replace the damaged fiberoptic cable at the Engineer's direction, such that a continuous cable segment of equivalent or better type, length, quality, and condition to the original existing cables is restored between the existing endpoints and the Fiberoptic Cable Vault indicated on the Plans. Any new cable shall otherwise conform to Section 9-29.3 of the Standard Specifications. Fiber Optic Cable Testing The installed optical fiber cable shall be tested for compliance with the transmission requirements of this specification and prescribed industry standards and practices. Prior to commencing acceptance testing, the Contractor shall complete the installation of the fiber optic system. This includes racking the cables in the pull boxes and cable vaults. Swift Green Line—Corridor Stations Special Provisions SP130 May 2017