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a. The maximum size of aggregate used for extruded or slip-formed concrete barriers shall be at the option of the
<br /> Contractor,but in no case shall the maximum size be larger than 37.5-mm or smaller than 9.5-mm.
<br /> b. If the 9.5 mm maximum size aggregate grading is used to construct extruded or slip-formed concrete barriers, the
<br /> cementitious material content of the minor concrete shall be not less than 400 kilograms per cubic meter.
<br /> The third paragraph in Section 83-2.02D(2),"Materials,"of the Standard Specifications is amended to read:
<br /> • The concrete paving between the tops of the 2 walls of concrete barrier(Types 50E, 60E, 60GE,and 60SE)and the
<br /> optional concrete slab at the base between the 2 walls of concrete barrier (Types 50E, 60E, 60GE, and 60SE) shall be
<br /> constructed of minor concrete conforming to the provisions of Section 90-10, "Minor Concrete," except that the minor
<br /> concrete shall contain not less than 300 kilograms of cementitious material per cubic meter.
<br /> The first paragraph of Section 83-2.03, "Measurement,"of the Standard Specifications is amended to read:
<br /> • Except for single thrie beam barrier within the pay limits of transition railing(Type STB),single thrie beam barrier
<br /> will be measured by the meter from end post to end post along the face of the rail element of the installed barrier. Single
<br /> thrie beam barriers constructed on each side of piers under structures or other obstructions will be measured for payment
<br /> along each line of the installed barrier.
<br /> The second paragraph of Section 83-2.03, "Measurement,"of the Standard Specifications is amended to read:
<br /> • Except for double thrie beam barrier within the pay limits of transition railing (Type DTB), double thrie beam
<br /> barrier will be measured by the meter from end post to end post along the center line of the installed barrier.
<br /> The fifth paragraph of Section 83-2.03, "Measurement,"of the Standard Specifications is amended to read:
<br /> • The quantity of return caps, terminal connectors and the various types of terminal sections for single and double
<br /> thrie beam barriers will be determined as units from actual count.
<br /> The sixth paragraph of Section 83-2.03,"Measurement,"of the Standard Specifications is amended to read:
<br /> • The quantity of end anchor assemblies will be paid for as units determined from actual count.
<br /> The first paragraph of Section 83-2.04,"Payment,"of the Standard Specifications is amended to read:
<br /> • The various types of thrie beam barrier,measured as specified in Section 83-2.03, "Measurement," will be paid for
<br /> at the contract price per meter for single or double thrie beam barrier,whichever applies,and the contract unit price or prices
<br /> for end anchor assemblies,return caps,terminal connectors and the various types of terminal sections.
<br /> The second paragraph of Section 83-2.04, "Payment,"of the Standard Specifications is amended to read:
<br /> • The above prices and payments shall include full compensation for furnishing all labor,materials,tools, equipment
<br /> and incidentals,and for doing all the work involved in constructing the barrier,complete in place,including drilling holes for
<br /> wood posts, driving posts, backfilling the space around posts, excavating and backfilling end anchor assembly holes,
<br /> connecting thrie beam barrier to concrete surfaces and disposing of surplus excavated material, and for furnishing, placing,
<br /> removing and disposing of the temporary railing for closing the gap between existing barrier and the barrier being
<br /> constructed as shown on the plans, and as specified in these specifications and the special provisions, and as directed by the
<br /> Engineer.
<br /> The fourth paragraph in Section 83-2.04,"Payments,"of the Standard Specifications is amended to read:
<br /> • Steel plate barrier attached to concrete barrier at overhead sign foundations, electroliers, drainage structures, and
<br /> other locations shown on the plans will be measured and paid for as the type of concrete barrier attached thereto.
<br /> Contract No. 10-OM7104
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