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<br />Version 09/29/2021 Special Provisions - 9 <br />g. The riser shall not obstruct entrance to a manhole. There are no extensions to <br />hinder men or equipment using the manhole. <br />h. All moving parts and mating surfaces are zinc plated with dichromate finish or <br />stainless steel. Skirts are G90 galvanized. <br />i. Skirt must be welded 85% of the circumference of riser. <br />j. Manhole riser allows efficient application of the pivoted turnbuckle so that 60 lbs. <br />force applied 7” from center of turnbuckle exerts 5600# tangential force in the riser <br />ring. This enables the riser ring to be forced to fit worn out of round manhole lid <br />seats and still exert a great force on the side walls for holding power. <br />k. Manhole risers shall be color coded prior to delivery based on the following: <br />Ring Diameter Color <br />20 3/4" D Silver <br />21 3/4" D Blue <br />22 1/8” D Red <br />22 1/4" D Yellow <br />23” D Green <br />23 5/8” D Black <br />25 1/2" D Fluorescent Orange <br />26” D Orange <br />26 1/2" D Gold <br /> <br /> <br />XIX. DIVISION E: TRAFFIC MATERIALS <br /> <br />B. Prevailing specifications/INDOT Standard Specification Section: 808, 909, 921 <br /> <br />C. Additions: <br /> <br />1. High Build Fast Dry Waterborne Traffic Paint: <br /> <br />a. High Build Fast Dry Waterborne Traffic Paint must meet and exceed the chemical <br />composition and performance requirements of Federal Specification TT-P-1952F <br />Type III. <br /> <br />b. High Build Fast Dry Waterborne Traffic Paint must be environmentally friendly 100% <br />acrylic emulsion traffic paint containing less than 100 grams per liter volatile organic <br />content (VOC). <br /> <br />c. High Build Fast Dry Waterborne Traffic Paint must meet or exceed TT-P-1952F <br />Type III when tested in accordance with the following ASTM test methods: D2369, <br />D562, D2697, D3723, D2805, D711, D1210, D969, D1849, D522, D2243, D1729, <br />D968, D2486, D1394, D1640, D2244, D3335, D3718, E1347, G154. <br /> <br />d. Coverage is to be 320 ft. of 4-inch line per gallon at 30 mils wet film thickness. <br />Precautions: Both surface and ambient application temperatures shall be a <br />minimum of 50°F. Temperature shall not drop below 50°F within a 24-hour period <br />following application. The shelf life of the paint shall be a minimum of 12 months. <br />