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responsibility of HEC. HEC accepts that Maintenance of Traffic is not substantially changed by bridge <br />design modifications. <br />IRC to provide the required drawings, calculations, applications and fees for any environmental <br />permits or modifications to existing environmental permits solely necessary for the design. <br />• IRC is committed to providing a 90% design and plans to HEC within 45 calendar days (45 days from the <br />date the County issues a notice to proceed to Arcadis the Engineer -of -Record). HEC will have 21 calendar <br />days to provide comments. IRC will provide 100% plans within 30 calendar days after receipt of <br />comments from HEC. HEC will then have 21 days to provide final comments. IRC will provide the final <br />design and plans within 15 calendar days after receipt of the final comments. <br />• HEC shall provide an acceptable schedule of values forthe purposes of estimating monthly payments. <br />HEC may elect to close 53`d Street to through traffic for a period not to exceed 180 calendar days (in <br />lieu of 120 per the current Specifications) during construction of 53 d Street Bridge over Lateral A <br />Canal. <br />As a result of the above stated terms and conditions, modify the contract pay items as follows: <br />Delete the following existing contract pay items: <br />Item Number <br />Description <br />Unit <br />Quantity <br />Unit Cost <br />Amount <br />110-3 - DEMOLITION AND <br />106 - 1A 53rd B <br />REMOVAL OF EXISTING <br />LS <br />1.00 <br />$147,000.00 <br />$147,000.00 <br />BRIDGE <br />12450-88-18A - PRESTRESSED <br />107 - 1A 53rd B <br />PRECAST DECK UNITS (18" x <br />LF <br />432.00 <br />$578.00 <br />$249,696.00 <br />4'-3" x 36'-0") <br />12450-88-18B - PRESTRESSED <br />108 - 1A 53rd B <br />PRECAST DECK UNITS (18" x <br />LF <br />72.00 <br />$578.00 <br />$41,616.00 <br />4'-6" x 36'-0") <br />400-2-4 - CLASS II CONCRETE <br />109 - 1A 53rd B <br />FOR CLOSURE POURS <br />CY <br />15.00 <br />$1,260.00 <br />$18,900.00 <br />BETWEEN DECK UNITS <br />110 - 1A 53rd B <br />415-1-4 - REINFORCING STEEL <br />LB <br />990.00 <br />$2.00 <br />$1,980.00 <br />521-5-1- CONCRETE TRAFFIC <br />111 - 1A 53rd B <br />RAILING BARRIER (32" F <br />LF <br />37.00 <br />$105.00 <br />$3,885.00 <br />SHAPE) <br />521-5-4 - CONCRETE TRAFFIC <br />112 - 1A 53rd B <br />RAILING BARRIER (32" <br />LF <br />37.00 <br />$105.00 <br />$3,885.00 <br />VERTICAL SHAPE) <br />521-72-3 - SHOULDER <br />113 - 1A 53rd B <br />CONCRETE BARRIER WALL <br />LF <br />100.00 <br />$525.00 <br />$52,500.00 <br />(INDEX 410 - CANTILEVERED <br />WALL) <br />460-70-2 - ALU M I N U M <br />114 - 1A 53rd B <br />BICYCLE BULLET BARRIER <br />LF <br />74.00 <br />$62.00 <br />$4,588.00 <br />RAILING <br />115 - 1A 53rd B <br />400-2-5 - CLASS II CONCRETE <br />CY <br />76.00 <br />$1,575.00 <br />$119,700.00 <br />FOR PILE CAPS <br />116 - 1A 53rd B <br />415-1-5 - REINFORCING STEEL <br />LB <br />12300.00 <br />$2.00 <br />$24,600.00 <br />181 <br />