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Stationing on roadway N/A ±0.1 feet <br /> Alignment on roadway N/A ±0.04 feet <br /> Surfacing grade stakes ±0.01 feet ±0.5 feet <br /> (parallel to alignment) <br /> ±0.1 feet <br /> (normal to alignment) <br /> Roadway paving pins for <br /> surfacing or paving ±0.01 feet ±0.2 feet <br /> (parallel to alignment) <br /> ±0.1 feet <br /> (normal to alignment) <br /> Stationing on structures ±0.2 feet <br /> Alignment on structures ±0.2 feet <br /> The Contracting Agency may spot-check the Contractor's surveying. These spot-checks <br /> will not change the requirements for normal checking by the Contractor. <br /> When staking roadway alignment and stationing, the Contractor shall perform independent <br /> checks from different secondary control to ensure that the points staked are within the <br /> specified survey accuracy tolerances. <br /> The Contractor shall calculate coordinates for the alignment. The Contracting Agency will <br /> verify these coordinates prior to issuing approval to the Contractor for commencing with the <br /> work. The Contracting Agency will require up to seven calendar days from the date the <br /> data is received. <br /> Contract work to be performed using contractor-provided stakes shall not begin until the <br /> stakes are approved by the Contracting Agency. Such approval shall not relieve the <br /> Contractor of responsibility for the accuracy of the stakes. <br /> Stakes shall be marked in accordance with Standard Plan A10.10. When stakes are <br /> needed that are not described in the Plans, then those stakes shall be marked, at no <br /> additional cost to the Contracting Agency as ordered by the Engineer. <br /> Payment <br /> Payment will be made in accordance with Section 1-04.1 for the following bid item when <br /> included in the proposal: <br /> " Surveying", lump sum. <br /> The lump sum contract price for "Surveying" shall be full pay for all labor, equipment, <br /> materials, and supervision utilized to perform the Work specified, including any resurveying, <br /> checking, correction of errors, replacement of missing or damaged stakes, and coordination <br /> efforts. <br /> Section 1-05.4 is supplemented with the following: <br /> Surveying shall be performed under the supervision of a Professional Land <br /> Surveyor(PLS) registered in the State of Washington. <br /> Swift Green Line—Corridor Stations Special Provisions SP20 <br /> May 2017 <br />