Laserfiche WebLink
<br /> 1 <br /> EXHffiIT B-1 <br /> Proposal for Construction Staking Services <br /> Route lOl/Ralston Interchange <br /> City of Redwood City <br />Scove of Services: <br />Construction staking services will be performed in accordance with the work as outlined in the Caltrans <br />"Staking Information" Pamphlet dated May 1, 1999, and will consist of construction survey services, <br />including field surveys and the necessary office support to coordinate staking requirements with the <br />Resident Engineer. MT &Co also will attend construction meetings as required, layout and set up <br />fieldwork, check notes and complete grade sheets. <br />Separate traffic control for survey work, except standard shoulder closures, is not anticipated and is not <br />included in the scope and budget. It is expected that all survey staking will be performed in <br />construction areas only after the Contractor has established a safe work zone for his own work in those <br />areas. Standard shoulder closures for survey work are included in this scope. <br />MTCo can provide up to three survey crews at one time for this project (although we believe that most <br />of the work will require one to two field crews to complete timely). We request a minimum of two <br />working days notice prior to construction staking, although we typically will be able to respond within <br />one day or less with advance scheduling coordinated through the Resident Engineer. The Contractor <br />will be responsible for providing cleared area for staking purposes, so that surveyors can operate safely <br />and construction stakes can be preserved. <br />Mark Thomas & Co. Inc. will provide one set of stakes for the following areas. Additional staking (i.e. <br />staking beyond that described herein, or restaking due to lost or destroyed stakes) will be perfonned as <br />approved by the Resident Engineer, and compensation as extra work by the Contractor: <br />a) Establish temporary horizontal and vertical control points for construction purposes. Calculate <br /> construction staking layouts and prepare construction EDM notes in accordance with Caltrans' <br /> staking guidelines. Update Construction Survey Plan to include these temporary points set as <br /> "MK" points. <br />b) Flag Right of Way for clearing and grubbing at 30m intervals with lath and flagging and field <br /> mark conform locations. <br />c) Rough grade and slope stake will be staked at 20 m intervals on centerline, at all BC's, EC's, <br /> and grade breaks, at top of slope and at toe of slope. <br />d) Intermediate slope staking shall be provided with spacing of 20 m to control cut slope or fill <br /> slope in excess of lO m. <br />e) Contour grading shall be staked at all grade breaks, with maximum spacing of 20 m intervals. <br />f) Drainage culverts and underdrains will be staked at 12 m intervals showing cut to invert. <br />Propo,çal for Construction Staking Services 1 <br />For Route WlIRalston Interchange Project <br />- -r . T"'" T . - <br />