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CITY OF EVERETT <br /> CHAPLAIN BRIDGE INSTALLATION DETAILS,SPECIFICATIONS,AND REQUIREMENTS <br /> E. Staging of all materials,equipment,and the bridge shall only occur at the South Pit unless otherwise approved <br /> by the Contract Administrator in writing.Preauthorization of exact staging location within the South Pit shall be <br /> required by the Contract Administrator. <br /> F. Installation operations shall take place from both sides of the stream bank. <br /> G. Purchaser shall ensure safe operations under the powerlines at the bridge location.If purchaser is unable to <br /> work around overhead powerlines in proximity to bridge location,notification is required at least 6 weeks prior <br /> to road closure and bridge installation. <br /> H. Road shall be passable by vehicle traffic following closure within 3 business days,unless otherwise approved <br /> by the Contract Administrator in writing.Contract Administrator shall be notified as soon as the road is <br /> passable. <br /> I. Final inspections by a City engineer shall occur within 48 hours of final bridge installation operations. <br /> J. The Purchaser/Contractor/Agent/Employee installing the bridge must meet the following competency <br /> prerequisites: 1)Minimum of three years'experience implementing fish exclusion methods described below,and <br /> 2) documented experience having completed bridge installations of comparable size and complexity. The City <br /> reserves the right to request and receive documented proof of this experience. <br /> K. REQUIRED MATERIALS SPECIFICATIONS-Any substitutions must be approved in writing by Contract <br /> Administrator: <br /> 1. Haul to site,place and compact the following materials(referenced to WSDOT Standard <br /> Specifications for Road,Bridge,and Municipal Construction M41-40,current edition). <br /> MATERIALS AVAILABLE ON-SITE(AT NO COST TO PURCHASER): <br /> a. SILL FOUNDATION: FOUNDATION MATERIAL CLASS A,SECTION 9-03.17. <br /> b. CHANNEL RIPRAP: ROCK FOR EROSION AND SCOUR PROTECTION CLASS C <br /> (WSDOT STD SPEC 9-13.4(2). <br /> c. GRAVEL FILTER LAYER: PERMEABLE BALLAST,SECTION 9-03.9(2). <br /> FOUNDATION MATERIAL CLASS A(WSDOT STD SPEC 9-13.4(2). <br /> d. ROADWAY SUBGRADE BACKFILL: GRAVEL BORROW OR APPROVED <br /> EQUAL,SECTION 9-03.14(1), <br /> e. ROADWAY SURFACE AND GRAVEL SURFACE OVER BRIDGE: CRUSHED <br /> SURFACING BASE COURSE- 1-1/4"MINUS,SECTION 9-03.9(3), <br /> MATERIALS REQUIRED FROM OFF-SITE(AT PURCHASER'S COST): <br /> f. CREEK BED ALLUVIAL MATERIAL: 12"STREAMBED COBBLES OR <br /> APPROVED EQUAL,SECTION 9-03.11(2). <br /> L. REQUIRED MATERIAL QUANTITIES-Any substitutions must be approved in writing by Contract <br /> Administrator: <br />