620.3(a) 620.3(b)
not batter, burr, separate galvanizing from steel, or distort the post. As directed, remove and replace posts bent or otherwise damaged. Install offset brackets, if required. In areas where random boulders are encountered and the post cannot be driven to grade, remove the post, then drill or excavate a hole of suitable dimensions and depth to place the post at grade as shown on the Standard Drawings . After the hole has been drilled, remove all fragments and soil from the hole. Provide containment if required to keep additional soil and rock fragments from entering the hole at no additional cost to the Department. Reset the post and backfill to the ground line, using No. 57 Coarse Aggregate and/or an acceptable embankment material as directed , thoroughly compacted in 6-inch layers with a handheld tamper as shown on the Standard Drawings. In areas where bedrock is encountered, and the post cannot be driven to grade, remove the post, then drill or excavate a hole of suitable dimensions to the required depth. After the hole has been drilled, remove all fragments and soil from the hole. Provide containment if required to keep additional soil and rock fragments from entering the hole at no additional cost to the Department. Reset the post and backfill to the ground line, using No. 57 Coarse Aggregate and /or an acceptable embankment mater ial as directed , thoroughly compacted in 6 -inch layers with a handheld tamper as shown on the Standard Drawings. If an underground feature, such as a low -fill culvert or underground utility line, prevents post(s) from being driven, posts may be skipped up to a 25 -foot span as shown on the Standard Drawings .
cantilever from the 5/16 -inch mounting bolt. Rest the free end on temporary 1/2-inch support bolts and nuts or temporary drift pins until the 5/16 -inch mounting bolts are torqued. Splice by lapping in the direction of traffic. Provide full contact between the rail elements in the overlap, between the center and both edges of the element, and between the bracket or post, as the case may be. Use suitable shop -formed guide rail or rubbing rails on curves having a radius of less than 150 feet.
transition types. Do not install on strong post connection bolts.
Anchors, and End Treatments. Install, where indicated.
reinforcement bars, anchor bolts, nuts, and w