Laserfiche WebLink
I <br /> I1 greater than the percentages shown in Table 2 of AASHTO R 54 the Engineer's <br /> 2 test results will be used to establish pay adjustments. <br /> I3 <br /> 4 Surface smoothness of travel lanes not subject to MRI testing will be measured with a 10- <br /> 5 foot straightedge no later than 5:00 p.m. of the day following the placing of the concrete. <br /> 6 The completed surface of the wearing course shall not vary more than 1/8 inch from the <br /> I 7 lower edge of a 10-foot straightedge placed on the surface parallel to the centerline. <br /> 8 <br /> 9 Smoothness perpendicular to the centerline will be measured with a 10-foot straightedge <br /> I10 across all lanes with the same cross slope, including shoulders when composed of cement <br /> 11 concrete pavement. The overlapping 10-foot straightedge measurement shall be <br /> 12 discontinued at a point 6 inches from the most extreme outside edge of the finished cement <br /> • 13 concrete pavement. The completed surface of the wearing course shall not vary more than <br /> 14 1/4 inch from the lower edge of a 10-foot straightedge placed on the surface perpendicular to <br /> 15 the centerline. Any deviations in excess of the above tolerances shall be corrected. <br /> 16 <br /> 17 The Contractor shall evaluate profiles for acceptance, incentive payments, disincentive <br /> 18 payments, or corrective action using the current version of ProVAL and provide the results <br /> I19 including the profile data in unfiltered electronic Engineering Research Division (ERD) file <br /> 20 format to the Engineer within 2 calendar days of completing testing each section of <br /> 21 pavement. If the profile data files are created using an export option in the manufacturer's <br /> 22 software where filter settings can be specified, use the filter settings that were used to <br /> I23 create data files for certification. Analyze the entire profile. Exclude any areas specifically <br /> 24 identified in the Contract. Exclude from the analysis the first 100 feet after the start of the <br /> 25 paving operations and last 100 feet prior to the end of the paving operation, the first 100 <br /> I26 feet on either side of bridge Structures and bridge approach slab. Report the MRI results in <br /> 27 inches per mile for each 52.8 foot section and horizontal distance measurements in project <br /> 28 stationing to the nearest foot. Include pay adjustments in the results. The Engineer will <br /> 1 29 verify the analysis. <br /> 30 <br /> 31 Corrective work for pavement smoothness may be taken by the Contractor prior to MRI <br /> • 32 testing. After completion of the MRI testing the Contractor shall measure the smoothness of <br /> 33 each 52.8-foot section with an MRI greater than 125 inches per mile with a 10-foot <br /> 34 straightedge within 14 calendar days or as allowed by the Engineer. The Contractor shall <br /> I35 identify all locations that require corrective work and provide the straight edge <br /> 36 measurements at each location that exceeds the allowable limit to the Engineer. if all <br /> 37 measurements in a 52.8-foot section comply with smoothness requirements, the Contractor <br /> 38 shall provide the maximum measurement to the Engineer and a statement that corrective <br /> I39 work is not required. Unless allowed by the Engineer, corrective work shall be taken by the <br /> 40 Contractor for pavement identified by the Contractor or Engineer that does not meet the <br /> 41 following requirements: <br /> I42 <br /> 43 1. The completed surface shall be of uniform texture, smooth, uniform as to crown <br /> 44 and grade, and free from defects of all kinds. <br /> I45 <br /> 46 2. The completed surface shall not vary more than 1/8 inch from the lower edge of a <br /> 47 10-foot straightedge placed on the surface parallel to the centerline. <br /> I48 <br /> 49 3. The completed surface shall vary not more than 1/4 inch in 10 feet from the rate of <br /> 50 transverse slope shown in the Plans. <br /> 51 <br /> City of Everett Page AM-23 Amendments <br /> 1 Everett Downtown Streetscape Improvement March 22, 2019 <br />