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Edgewater Creek Bridge Replacement November 2023 16 1-05.4.OPT2.GR1 1 (January 13, 2021) 2 Contractor Surveying - Roadway 3 The Contracting Agency has provided primary survey control in the Plans. 4 5 The Contractor shall be responsible for setting, maintaining, and resetting all alignment 6 stakes, slope stakes, and grades necessary for the construction of the roadbed, drainage, 7 surfacing, paving, channelization and pavement marking, illumination and signals, 8 guardrails and barriers, and signing. Except for the survey control data to be furnished 9 by the Contracting Agency, calculations, surveying, and measuring required for setting 10 and maintaining the necessary lines and grades shall be the Contractor's responsibility. 11 12 The Contractor shall inform the Engineer when monuments are discovered that were not 13 identified in the Plans and construction activity may disturb or damage the monuments. 14 All monuments noted on the plans “DO NOT DISTURB” shall be protected throughout the 15 length of the project or be replaced at the Contractors expense. 16 17 Detailed survey records shall be maintained, including a description of the work 18 performed on each shift, the methods utilized, and the control points used. The record 19 shall be adequate to allow the survey to be reproduced. A copy of each day's record shall 20 be provided to the Engineer within three working days after the end of the shift. 21 22 The meaning of words and terms used in this provision shall be as listed in "Definitions of 23 Surveying and Associated Terms" current edition, published by the American Congress 24 on Surveying and Mapping and the American Society of Civil Engineers. 25 26 The survey work shall include but not be limited to the following: 27 28 1. Verify the primary horizontal and vertical control furnished by the Contracting 29 Agency, and expand into secondary control by adding stakes and hubs as well 30 as additional survey control needed for the project. Provide descriptions of 31 secondary control to the Contracting Agency. The description shall include 32 coordinates and elevations of all secondary control points. 33 34 2. Establish, the centerlines of all alignments, by placing hubs, stakes, or marks on 35 centerline or on offsets to centerline at all curve points (PCs, PTs, and PIs) and 36 at points on the alignments spaced no further than 50 feet. 37 38 3. Establish clearing limits, placing stakes at all angle points and at intermediate 39 points not more than 50 feet apart. The clearing and grubbing limits shall be 5 40 feet beyond the toe of a fill and 10 feet beyond the top of a cut unless otherwise 41 shown in the Plans. 42 43 4. Establish grading limits, placing slope stakes at centerline increments not more 44 than 50 feet apart. Establish offset reference to all slope stakes. If Global 45 Positioning Satellite (GPS) Machine Controls are used to provide grade control, 46 then slope stakes may be omitted at the discretion of the Contractor 47 48 5. Establish the horizontal and vertical location of all drainage features, placing 49 offset stakes to all drainage structures and to pipes at a horizontal interval not 50 greater than 25 feet. 51 52