Granite Construction 5/14/2020 - Laserfiche WebLink

I 1 8-22.3(1) Preliminary Spotting 2 3 Section 8-22.3(1) is supplemented with the following: 4 5 (..—..) I 6 Contractor Surveying — Roadway Striping and Channelization 7 8 No survey control data or layout will be furnished by the Contracting Agency. The 9 Contractor shall be solely responsible for detailed documentation (records) of all 10 existing pavement markings and channelization in the field prior to grinding 11 operations. This work includes but is not limited to: field notes, sketches, offset I 12 markings on curbs or staking if no curb exists. 13 14 The records and offset marking/staking shall be adequate to allow the pavement 15 markings to be reproduced to a level of accuracy shown below: 16 17 I 18 Lane widths ±0.1 feet (normal to alignment) 19 Longitudinal location of arrows and letters ±1.0 feet (parallel to alignment) 20 Longitudinal location of stop lines ±1.0 feet (parallel to alignment) 21 Transverse location of arrows and letters ±0.1 feet (normal to alignment) I 22 Longitudinal location of transitions and tapers±1.0 feet (parallel to alignment) 23 Pavement marking starts and stops ±1.0 feet (parallel to alignment) I 24 25 The Contractor shall provide copies of any calculations, notes, and layout data to 26 the Engineer, or their assigned representative, prior to grinding. The Contracting 27 Agency will review the provided data, check the existing layout and provide 28 revisions as necessary for establishment of lane widths, arrow and letter locations, 29 tapers, transitions, other modifications, and pavement seams. The Contracting 30 Agency will require up to seven calendar days from the date the data is received to 1 31 conduct this review. No pavement grinding will be allowed before this review is 32 complete. The Contractor will make adjustments to the curb marking and stakes to 1 33 match the revisions prior to grinding.. 34 35 Based on these records and/or the offset staking, the Contractor shall perform all 36 field marking and preliminary spotting for all pavement marking and channelization I 37 following grinding operations, for temporary only. The Contracting Agency shall 38 perform all field marking for permanent pavement marking and channelization. All 39 calculations, surveying, and measuring required for setting and maintaining the 40 necessary lines for the temporary pavement marking shall be the Contractor's 41 responsibility. 42 43 Preliminary spotting shall be provided at a spacing of 40 foot maximum on tangents 44 and 25 foot maximum on curves and tapers. All curves, tapers, stop lines, and 45 crosswalks shall be laid out with a rope. Field layout for curves and tapers shall 46 use an 800' minimum length rope. The color of the material used for preliminary 1 47 spotting shall be white. Longitudinal marking shall be parallel with the proposed 48 line applied with a paint marker wand or other approved method, a minimum of 6 49 inches in length and wide enough so that a minimum of two marks can be clearly 50 seen at night under ordinary headlight conditions. Refreshing of marks prior to 51 striping shall be the responsibility of the Contractor. 52 2020 PAVEMENT MAINTENANCE OVERLAY PAGE 76 OF 79 SPECIAL PROVISIONS WORK ORDER 3727 FEBRUARY 20,2020