11831 AIRPORT RD WHOLE SITE FILE 2020-01-21

PLANS, SPECIFICATIONS AND ESTIMATE REVIEW Project Title: CT SWIFT II 90% Lane Closure - Traffic Control Special Provisions Job Charge: Reviewed By: Office&Mail Stop: Phone: Date: S -,- Corey N. Hertcori City of Everett Traffic Engineering 425-257-8887 12/12/2016 1 of 3 # Sht1Pg Reviewer's Comment Designer's Response Init. 1 SP3 We should encourage night work whenever possible along Airport Rd in the City of Everett. A City of Everett noise variance will be required, but at most locations work can occur at night. Recommend the following hours for traffic control lane and shoulder closures within the City of Everett: • Shoulder closures will be allowed without time restrictions provided there is no lane encroachment. Shoulder closures with lane encroachment shall will follow the same restrictions as single lane closures. • Single lane closures will be allowed NB on Airport Rd between SR 526 and Evergreen Way from 7:30am and 4:30am. • Single lane closures will be allowed SB on Airport Rd between SR 526 and Evergreen Way from 5:00pm and 2:00pm, with the exception of Airport Rd south of Evergreen Way. Airport Rd south of Evergreen Way is Snohomish County and WSDOT jurisdiction, and the roadway section changes, so I would recommend you coordinate detailed hours for lane closures. 2 SP3-SP4 It is unlikely that the work can be done excavating and placing the concrete panels at the Swift II stops with just a single lane closure on Airport Rd. Multi-lane closure may be desirable, provided they are restricted to only certain activities, or are given a finite number of working days to allow the contractor to work as efficiently as possible. I recommend allowing the following hours for traffic control two lane closures within the City of Everett: • Two lane closures will be allowed NB on Airport Rd between SR 526 and Evergreen Way from 8:00am and 4:00am. • Two lane closures will be allowed SB on Airport Rd between SR 526 and Evergreen Way from 6:30pm and 2:00pm. Concrete curing will either require a high early mix or round the clock closures. I would recommend that specification stipulate the concrete panels be placed on Friday night or Saturday to allow for curing and placement of asphalt patch (following curing). Weekend work for round the clock lane closures is recommended on Airport Rd. This may already have been done other sections of the special provisions. I do not have a full copy CT SWIFT II 90pct Lane Closure-Traffic Control Special Provisionsx