Combined Construction Inc. 7/22/2020

1 During nonworking hours equipment or materials shall not be within the WZCZ I 2 unless they are protected by permanent guardrail or temporary concrete barrier. 3 The use of temporary concrete barrier shall be permitted only if the Engineer 4 approves the installation and location. 5 6 During actual hours of work, unless protected as described above, only 7 materials absolutely necessary to construction shall be within the WZCZ and 8 only construction vehicles absolutely necessary to construction shall be allowed 9 within the WZCZ or allowed to stop or park on the shoulder of the roadway. 10 11 The Contractor's nonessential vehicles and employees private vehicles shall not 12 be permitted to park within the WZCZ at any time unless protected as described 13 above. 14 15 Deviation from the above requirements shall not occur unless the Contractor 16 has requested the deviation in writing and the Engineer has provided written 17 approval. 18 19 Minimum WZCZ distances are measured from the edge of traveled way and will 20 be determined as follows: 21 Regulatory Distance From Posted Speed Traveled Way III (Feet) 35 mph or less 10 40 mph 15 III 45 to 50 mph 20 55 to 60 mph 30 65 mph or greater 35 22 23 Minimum Work Zone Clear Zone Distance 24 25 1-07.23(1).OPTS.FR1.DOCX 26 (January 5, 2015) 27 Lane closures are subject to the following restrictions: i 28 29 *** 30 1. At least one 11-foot lane shall remain open to traffic at all times on Mukilteo 1 31 Blvd W. Short term disruptions and impacts resulting in temporary closure 32 under flagging operation of Mukilteo Blvd. W is allowed, however these 33 closures shall be limited be no more than 3 minutes in duration no more I 34 than once every 15 minutes. During these temporary closures, provisions 35 shall be made to allow safe and immediate access for emergencies and first 36 responders through the area during these closures. Lane closures and 37 shifts are permitted as described in the following items of this list with the 38 use of flaggers and following the requirements in Section 1-10.2. An 39 approved traffic control plan is required. 40 41 2. Single lane closures with alternating one-way traffic are allowed on the 42 bridge between the hours of 7am and 3pm during the weekdays with the 43 use of flaggers and following the requirements in Section 1-10.2. Safe and I 44 immediate access for emergencies and first responders shall be maintained I MAPLE HEIGHTS BRIDGE SEISMIC RETROFIT PAGE 58 OF 106 SPECIAL PROVISIONS—Addendum 1 WORK ORDER#3693 MAY 4,2020 FEDERAL AID#BHM-2776(008)