A-1 Landscaping and Construction, Inc. 7/20/2016

II 1 3. A sufficient number of bench marks for levels to enable the Contractor to set I 2 grades at reasonably short distances. 3 4. Monuments and control points as shown on the Drawings. 4 The Contractor shall give the City 3 weeks notification to allow adequate time to I 5 provide the above data. 6 The Contractor shall ensure a surveying accuracy within the following tolerances: 7 1. Slope stakes ±0.1 foot I 8 2. Subgrade blue tops ±0.01 foot 9 3. Stationing ±0.01 foot 10 4. Alignment ±0.01 foot 11 5. Surfacing red & yellow tops ±0.01 foot 12 6. Superstructure elevations ±0.01 foot (from plan elevations) 13 7. Substructure ±0.02 foot (from plan elevations) I 14 15 The Contractor shall stake the alignment and extents of the limits of work, staging areas, 16 channel excavation, proposed clearing and grubbing, breach excavation, and habitat 17 berms. Stakes shall be set at 50' maximum intervals. The Contractor shall survey the I 18 grades of the breach excavation areas, prior to earth disturbing activities, by taking 19 transects perpendicular to the channel alignment at 25 ft spacing. Transects shall 20 extend at minimum 10 feet beyond the top of the excavation shown on the Drawings I 21 After excavation is complete to the lines and grades on the Drawings, the contractor 22 shall repeat the transects. 23 I 24 25 The Contractor shall slope stake the roadway before any construction may proceed. Slope stakes shall be set at 50' maximum intervals on tangents and 25' on curves. 26 Subgrade bluetops and surfacing red and yellow tops shall be set at 50' intervals in I 27 tangent sections, 25' intervals in curve sections, and 10' intervals in intersection radii. 28 29 The Contractor's surveyor shall be a licensed surveyor in the State of Washington. The I 30 Contractor shall keep updated survey field notes in a standard field book and in a format 31 set by the Engineer. These field notes shall include all survey work performed by the 32 Contractor's surveyor in establishing line, grade and slopes for the construction work. 33 Copies of these field notes shall be provided to the Engineer upon request and upon I34 completion of the contract work; the field book shall be submitted to the Engineer and 35 become property to the City. 36 I 37 If the survey work provided by the Contractor does not meet the standards of the 38 Engineer, then the Contractor shall, upon the Engineer's written request, remove the 39 individual or individuals doing the survey work and the survey work will be completed by 40 the Engineer at the Contractor's expense. Costs for completing the survey work required 41 by the Engineer will be deducted from monies due or to become due the Contractor. 42 I 43 The City may spot-check the Contractor's surveying. These spot-checks will not change 44 the requirements for normal checking and testing as described elsewhere, and do not 45 relieve the Contractor of the responsibility of producing a finished product that is in 46 accordance with the contract. 47 48 In all disputes concerning accuracy of lines and elevations, the City shall be assumed 49 correct and the Contractor shall correct the discrepancies before construction work may 50 proceed. No additional compensation will be paid for this corrective work. 51 52 Payment: The lump sum contract price for"Surveying" shall be full pay for all costs II53 involved in furnishing all labor, tools, survey instruments, materials, and other equipment iRIVERFRONT DEVELOPMENT NORTH WETLAND COMPLEX 29