McCann Construction Enterprises Inc 11/7/2018

I 1 1. Verify the primary horizontal and vertical control furnished by the Contracting I 2 Agency, and expand into secondary control by adding stakes and hubs as well 3 as additional survey control needed for the project. Provide descriptions of 4 secondary control to the Contracting Agency. The description shall include 5 coordinates and elevations of all secondary control points. 6 7 2. Establish, the centerlines of all alignments, by placing hubs, stakes, or marks 8 on centerline or on offsets to centerline at all curve points (PCs, PTs, and Pls) 9 and at points on the alignments spaced no further than 50 feet. 10 I 11 3. Establish clearing limits, placing stakes at all angle points and at intermediate 12 points not more than 50 feet apart. The clearing and grubbing limits shall be 5 13 feet beyond the toe of a fill and 10 feet beyond the top of a cut unless otherwise I 14 shown in the Plans. 15 16 4. Establish grading limits, placing slope stakes at centerline increments not more 17 than 50 feet apart. Establish offset reference to all slope stakes. If Global 18 Positioning Satellite (GPS) Machine Controls are used to provide grade control, 19 then slope stakes may be omitted at the discretion of the Contractor 20 21 5. Establish the horizontal and vertical location of all drainage features, placing 22 offset stakes to all drainage structures and to pipes at a horizontal interval not II23 greater than 25 feet. 24 25 6. Establish roadbed and surfacing elevations by placing stakes at the top of 26 subgrade and at the top of each course of surfacing. Subgrade and surfacing I 27 stakes shall be set at horizontal intervals not greater than 50 feet in tangent 28 sections, 25 feet in curve sections with a radius less than 300 feet, and at 10- 29 foot intervals in intersection radii with a radius less than 10 feet. Transversely, I 30 stakes shall be placed at all locations where the roadway slope changes and at 31 additional points such that the transverse spacing of stakes is not more than 12 32 feet. If GPS Machine Controls are used to provide grade control, then roadbed I 33 and surfacing stakes may be omitted at the discretion of the Contractor. 34 35 7. Establish intermediate elevation benchmarks as needed to check work I 36 throughout the project. 37 38 8'. Provide references for paving pins at 25-foot intervals or provide simultaneous I 39 surveying to establish location and elevation of paving pins as they are being 40 placed. 41 42 9. For all other types of construction included in this provision, (including but not I 43 limited to channelization and pavement marking, illumination and signals, 44 guardrails and barriers, and signing) provide staking and layout as necessary to 45 adequately locate, construct, and check the specific construction activity. 46 47 10. Contractor shall determine if changes are needed to the profiles or roadway 48 sections shown in the Contract Plans in order to achieve proper smoothness I 49 and drainage where matching into existing features, such as a smooth transition 50 from new pavement to existing pavement. The Contractor shall submit these I N. BROADWAY TRANSIT IMPROVEMENT PROJECT I STATE FUND#GCB2316; COE WO#3644 14 August 8, 2018