491 The Contractor shall provide the Department with original copies of all necessary current manufacturer’s installation manuals and working drawings in accordance with 105.02. Transition panels and all other necessary hardware shown in the manufacturer’s recommendations for bi-directional traffic protection shall be included in the installation or resetting, if the unit is installed at a location where traffic is passing the unit on both sides in opposite directions.
601.09 Extension of Existing Guardrail 190
Extension of existing rub rail type guardrail with new W-beam guardrail shall require adjusting the post heights in the last 25 ft of existing rub rail type guardrail adjacent to the extension as shown on the plans. Guardrail transition Type VH shall be used to make this adjustment. The post spacing of the guardrail transition Type VH shall equal that of the last 25 ft of ex isting rub rail type guar drail adjacent to the extension. The rub rail shall be terminated at the last existing post in the transition in accordance with 601.06. Extension of existing rub rail type or W-beam guardrail with new MGS W-beam guardrail shall require adjusting the splice location and post height in the last 37 ft 6 200 in. of the existing rub rail type or W-beam guardrail as shown on the plans. MGS height transition shall be used to make this adjustment. The rub rail shall be terminated at the last existing post in the transition in accordance with 601.06. 601.10 Removal of Existing Guardrail Removal of existing guardrail shall be in accordance with the applicable requirements of 202 and these requirements. The locations shall be as shown on the plans. When it is specified that the removed guardrail is to become the property of the Department, the rail elements, posts, and blockouts shall be removed without being damaged. The removed material shall be stored as directed. 210
601.11 Adjusting Existing Guardrail Height
The height of the existing guardrail shall be adjusted by the use of moveable blockouts as shown on the plans. The height shall be measured to the top of the rail element along the face of the rail. Existing fixed blockouts shall be replaced with moveable blockouts installed at the proper height. Existing moveable blockouts shall be disconnected from the posts and re-mounted at the proper height.
601.12 Resetting Guardrail This work shall consist of the remova l of existing guardrail and if necessary, 220
storing and then re-erecting where shown on the plans or as directed.
601.13 Method of Measurement
Guardrail, guardrail with rub rail, shop curved guardrail, adjusting guardrail height, guardrail removal, and resetting guardrail will be measured by the linear foot along the top of the rail element, complete in place. Nested guardrail will be measured 601.13 492 per each 100 lft run placed. Modified posts for nested guardrail will be measured per each, complete in place. MGS structure top-mounted posts will be measured per each, complete in place. Long span MGS W-beam guardrail will be measured per each for the type specified and corresponding run length between outermost CRT posts. 230 Guardrail transitions, W-beam and MGS W-beam guardrail cable terminal anchors, and guardrail end treatments will be measured per each, complete in place. Guardrail buried end treatments Type II will be measured per each. Impact attenuators and resetting impact attenuators will be measured per each for the type and width and test level, complete in place. The curved W- beam guardrail connector system and the curved W-beam guardrail terminal system will be measured per each for the type specified. Grading at guardrail end treatment s, the reflectorization of guardrail end treatments, and concrete used in anchoring guardrail end treatments will not be measured for payment. 240 Aggregate used to fill gravel barrel impact attenuators will not be measured for payment.
601.14 Basis of Payment
W-beam and MGS W-beam guardrail will be paid for at the contract unit price per linear foot for the specified post spacing. Thrie-beam and thrie-beam double faced guardrail will be paid for at the contract unit price per linear foot for guardrail, thrie-beam and guardrail, thrie-beam, double faced, complete in place. Nested guardrail will be paid for at the contract unit price pe r each 100 lft run, complete in place for guardrail, W-beam, nested. Long span MGS guar drail will be paid for at the contract 250 unit price per each type specified and corresponding run length between outermost CRT posts, complete in place for guardra il, MGS, long span. W-beam and MGS W- beam guardrail cable terminal anchor will be paid for at the contract unit price per each, complete in place. Modified posts for nested guardrail will be paid for at the contract unit price per each for modified posts, nested guardrail. Structure top- mounted posts will be paid for at the contr act unit price per each for guardrail, MGS, structure top-mounted posts. W-beam guardrail with rub rail will be paid for at the contract unit price per linear foot for guardrail, WR-beam complete in place. Shop curved guardrail, adjusting 260 guardrail height, guardrail removal, and resetting guardrail will be paid for at the contract unit price per linear foot. Guardrail transitions and guardrail end treatments will be paid for at the contract unit price per each for the type specified. Guardrail buried end treatments Type II will be paid for at the contract unit price per each, complete in place. Impact attenuators and resetting impact attenuators will be paid for at the contract unit price per each for the type and width, and test level specified. The curved W-beam guardrail connector system and curved W-beam guardrail system will be paid for at the contract unit price per each for th e type specified, complete in place. 270 Where existing guardrail height is adjusted, such work will be paid for at the contract unit price per linear foot. The cost of removal, all necessary storage, new 601.14 493 adjustable post brackets, attachment of rail section, and miscellaneous nuts and bolts as required shall be included in the cost of adjust guardrail height. Payment will be made under: Pay Item Pay Unit Symbol 280 Guardrail Connector System, W-Beam, Curved, _____............ EACH type Guardrail End Treatment, _____ ............................................... EACH type Guardrail Height Transition, MGS ............................................ EACH Guardrail Height Transition, VH, ____ ft ____ in. Spacing ...... EACH Guardrail Transition, _____ ...................................................... EACH type Guardrail Transition, MGS, _____ ............................................ EACH type 290 Guardrail, Adjust Height ........................................................... LFT Guardrail, MGS W-Beam, ____ ft ____ in. Spacing ................. LFT Guardrail, MGS W-Beam, Cable Terminal Anchor .................. EACH Guardrail, MGS W-Beam, Double Faced, _____ ft _____ in. Spacing ................................................ LFT Guardrail, MGS W-Beam, Shop Curved, _____ ft _____ in. Spacing ................................................. LFT Guardrail, MGS, Long Span, _____ .......................................... EACH type Guardrail, MGS, Structure Top-Mounted Posts ........................ EACH 300 Guardrail, Remove .................................................................... LFT Guardrail, Reset ......................................................................... LFT Guardrail Terminal System, W-Beam, Curved, _____ ............. EACH type Guardrail, Thrie-Beam .............................................................. LFT Guardrail, Thrie-Beam, Double Faced ...................................... LFT Guardrail, W-Beam, ____ ft ____ in. Spacing .......................... LFT Guardrail, W-Beam, Cabl e Terminal Anchor ............................ EACH Guardrail, W-Beam, Double Faced, _____ ft _____ in. Spacing ................................................ LFT 310 Guardrail, W-Beam, Nested ...................................................... EACH Guardrail, W-Beam, Shop Curved, _____ ft _____ in. Spacing ................................................ LFT Guardrail, WR-Beam ................................................................. LFT Impact Attenuator, ________, _______ _ .................................. EACH type-width test level Impact Attenuator, Reset, ________, ____ ____ ....................... EACH type-width test level Modified Posts, Nested Guardrail ............................................. EACH 601.14 494 320 For W-beam guardrail, the substitution of 6 ft posts for 7 ft posts where conditions will not allow the use of the longer post will be at the same contract unit price of the longer post. The substitution of W 6 x 8.5 for W 6 x 9 steel posts, in MGS W-beam guardrail, will be at the same contract unit price for heavier post. The cost of resetting guardrail shall include the removal, necessary storage, resetting, and replacement of damaged or missing parts and new posts as required. 330 The cost of reflectorization of impact attenuators and guardrail end treatments shall be included in the respective pay items. The cost of all grading required for the guardrail buried end treatment shall be included in the cost of guardrail end treatment, Type II. The cost of earthwork, grading, trans ition panel, if required, and PCC pad shall be included in the cost of the impact attenuator. The cost of aggregate used to fill gravel barrel impact attenuators shall be in cluded in the cost of the impact attenuator. The cost of excavation, concrete footi ngs, reinforcement, and structural steel tubing required for modified posts, nested guardrail, shall be included in the cost of the pay item. The cost of all materials, including replacing damaged or missing parts, labor, and necessary incidentals required to reset impact attenuators, shall be included in the cost of impact attenuator, reset. Where guardrail transition Type TGB is used with bridge railing Type TR, the cost of eliminating the thrie-beam terminal connector and driving the posts to the 350 height above ground shown on the plans shall be included in the cost of the guardrail transition.