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I <br /> 1 1 6-09.3(1)B Rotary Milling Machines <br /> 2 This section is revised to read: <br /> 111 3 <br /> 4 Rotary milling machines used to remove an upper layer bf existing concrete overlay, when <br /> 5 present, shall have a maximum operating weight of 50,000 pounds and conform to Section <br /> 6 6-08.3(5)6. <br /> 111 7 <br /> 8 6-09.3(1)C Hydro-Demolition Machines <br /> 9 The first sentence of this section is revised to read: <br /> I10 <br /> 11 Hydro-demolition machines shall consist of filtering and pumping units operating in <br /> 12 conjunction with a remote-controlled robotic device, using high-velocity water jets to <br /> 1 13 remove sound concrete to the nominal scarification depth shown in the Plans with a single <br /> 14 pass of the machine, and with the simultaneous removal of deteriorated concrete. <br /> 15 <br /> I16 6-09.3(1)D Shot Blasting Machines <br /> 17 This section, including title, is revised to read: <br /> 18 <br /> I19 6-09.3(1)D Vacant <br /> 20 <br /> 21 6-09.3(1)E Air Compressor <br /> 22 This section is revised to read: <br /> 111 23 <br /> 24 Air compressors shall be equipped with oil traps to eliminate oil from being blown onto the <br /> I25 bridge deck. <br /> 26 <br /> 27 6-09.3(1)J Finishing Machine <br /> ' 28 This section is revised to read: <br /> 29 <br /> 30 The finishing machine shall meet the requirements of Section 6-02.3(10) and the following <br /> 31 requirements: <br /> 1 32 <br /> 33 The finishing machine shall be equipped with augers, followed by an oscillating, <br /> 34 vibrating screed, vibrating roller tamper, or a vibrating pan, followed by a rotating <br /> I35 cylindrical double drum screed. The vibrating screed, roller tamper or pan shall be of <br /> 36 sufficient length and width to properly consolidate the mixture. The vibrating frequency <br /> 37 of the vibrating screed, roller tamper or pan shall be variable with positive control. <br /> I38 <br /> 39 6-09.3(2) Submittals <br /> 40 Item number 1 and 2 are revised to read: <br /> I41 <br /> 42 1. A Type 1 Working Drawing consisting of catalog cuts and operating parameters of the <br /> 43 hydro-demolition machine selected by the Contractor for use in this project to scarify <br /> 145 44 concrete surfaces. <br /> 46 2. A Type 1 Working Drawing consisting of catalog cuts, operating parameters, axle <br /> 47 loads, and axle spacing of the rotary milling machine (if used to remove an upper layer <br /> I48 of existing concrete overlay when present). <br /> 49 <br /> 50 <br /> City of Everett Page AM-57 Amendments <br /> Everett Downtown Streetscape Improvement March 22, 2019 <br />