Ariston Pacific, Inc. 5/9/2016 - Laserfiche WebLink

I I1 2 1. Verify the primary horizontal and vertical control furnished by the Contracting I 3 Agency, and expand into secondary control by adding stakes and hubs as well 4 as additional survey control needed for the project. Provide descriptions of 5 secondary control to the Contracting Agency. The description shall include I 6 coordinates and elevations of all secondary control points. 7 8 2. Establish, the centerlines of all alignments, by placing hubs, stakes, or marks I 9 on centerline or on offsets to centerline at all curve points (PCs, PTs, and Pls) 10 and at points on the alignments spaced no further than 50 feet. 11 12 3. Establish clearing limits, placing stakes at all angle points and at intermediate I13 points not more than 50 feet apart. The clearing and grubbing limits shall be 5 14 feet beyond the toe of a fill and 10 feet beyond the top of a cut unless 15 otherwise shown in the Plans. I 16 17 4. Establish grading limits, placing slope stakes at centerline increments not 18 more than 50 feet apart. Establish offset reference to all slope stakes. If I 19 Global Positioning Satellite (GPS) Machine Controls are used to provide grade 20 control, then slope stakes may be omitted at the discretion of the Contractor 21 I 22 23 5. Establish the horizontal and vertical location of all drainage features, placing offset stakes to all drainage structures and to pipes at a horizontal interval not 24 greater than 25 feet. I 25 26 6. Establish roadbed and surfacing elevations by placing stakes at the top of 27 subgrade and at the top of each course of surfacing. Subgrade and surfacing 28 stakes shall be set at horizontal intervals not greater than 50 feet in tangent I 29 sections, 25 feet in curve sections with a radius less than 300 feet, and at 10- 30 foot intervals in intersection radii with a radius less than 10 feet. Transversely, 31 stakes shall be placed at all locations where the roadway slope changes and I 32 at additional points such that the transverse spacing of stakes is not more than 33 12 feet. If GPS Machine Controls are used to provide grade control, then 34 roadbed and surfacing stakes may be omitted at the discretion of the I 35 Contractor. 36 37 7. Establish intermediate elevation benchmarks as needed to check work I 38 throughout the project. 39 40 8. Provide references for paving pins at 25-foot intervals or provide simultaneous I 41 surveying to establish location and elevation of paving pins as they are being 42 placed. 43 44 9. For all other types of construction included in this provision, (including but not I 45 limited to channelization and pavement marking, illumination and signals, 46 guardrails and barriers, and signing) provide staking and layout as necessary 47 to adequately locate, construct, and check the specific construction activity. I 48 49 10. Contractor shall determine if changes are needed to the profiles or roadway 50 sections shown in the Contract Plans in order to achieve proper smoothness I51 and drainage where matching into existing features, such as a smooth I PACIFIC&BROADWAY SAFETY IMPROVEMENTS FED AID#HSIP-0005(331); COE#3523 CITYWIDE SAFETY IMPROVEMENTS FED AID#HSIP-0005(330); COE#3524 13 December 23,2015