725 702- 4 Method of Measurement: Attenuation devices will be measured as a unit for each device installed, except that devices which were previously used for maintenance and protection of traffic and are being reused as a permanent installation will not be measured for payment. 702- 5 Basis of Payment: The accepted quantities of attenuation devices, measured as provided above, will be paid for at the contract unit price for the type designated in the bidding schedule, complete in place. No extra measurement or payment will be made for any concrete, reinforcing steel, hardware, fasteners, structural steel, pavement pad materials, any connection or transition section needed to connect the impact attenuator to guardrail or concrete barriers, grading in the area of the impact attenuator and required only to smooth vehicle approach paths to it, excavation and backfill required immediately adjacent to the barrier, and sand to fill crash cushion modules, as the cost thereof will be considered as included in the contract unit price for the impact attenuator, complete in place. Labor and equipment used to remove and reinstall attenuation devices used for maintenance and protection of traffic and being reused as a permanent installation will be paid for in accordance with t he provisions of Subsection 109.04 of the specifications. 703- 1 Description: The work under this section shall consist of furnishing and installing delineators, reference markers, object markers, snow markers and milepost markers in conformance with the details shown on the project plans, the manufacturer’s recommendations and in accordance with the requirements of these specifications. The types of delineators and markers to be installed and the locations will be shown on the project plans. 703- 2 Materials:
703- 2.01 General: Certificates of Compliance conforming to the requirements of Subsection 106.05 of the specifications shall be submitted for approval. Additionally, the contractor shall provide detailed manufacturer's information, specifications and application guidelines. TABLE OF CONTENTS INDEX 726 Flexible deli neators shall be two- piece or three- piece assemblies, and shall comply with the requirements specified herein. Two -piece flexible delineator assemblies shall consist of a hollow flexible delineator post with an integral base transition segment, and a separate foundation unit. Three- piece flexible delineator assemblies shall consist of a hollow flexible delineator post, a separate base transition unit, and a separate foundation unit. Foundation units for both assemblies shall be either a driven steel post, a steel post in a concrete foundation, or a surface- mounted unit, as called for on the plans. The devices shall exhibit good workmanship and shall be free of burns, discoloration, cracks, or other objectionable marks which would affect appearance or servi ceability. Samples of each device shall be supplied for testing if requested by the Engineer. The Engineer and contractor shall field verify the locations, necessary lengths and quantities prior to materials being ordered. Item lengths and quantities shall be adjusted as necessary. Flexible delineator components currently approved for use are shown on the Department's Approved Products List. Copies of the most current version are available on the internet from the ADOT Research Center, through its Product Evaluation Program. 703- 2.02 Metal Posts: Posts for delineators and for all markers, including mileposts or reference markers installed on freeways shall conform to the details shown in the project plans. 703- 2.03 Concrete: Concrete for the milepost or reference marker foundations shall be utility concrete conforming to the requirements of Section 922 of the specifications. 703- 2.04 Metal Plates: Metal plates for the various types of object markers shall conform to the details shown on the plans and shall be fabricated in one piece from 0.063- inch thick aluminum -alloy sheet 3003- H 14, 5052- H 38, or 6061- T 6, all conforming to the requirements of ASTM B209. 703- 2.05 Paint: Pain t for use on the metal plates shall conform to the requirements of Section 1002 of the specifications for the type and color of paint specified on the plans. TABLE OF CONTENTS INDEX 727 703- 2.06 Retroreflective Sheeting: Retroreflective sheeting for markers and all delineators excluding flexible delineators shall conform to the requirements of Section 1007 of the specifications. For flexible delineators, all reflective sheeting shall consist of a prismatic retroreflective system having a smooth outer surface, and shall conform to applicable criteria in ASTM D4956 for the type of sheeting, including class, color, specific intensity per unit area (SIA), color processing, adhesive, and artificial weathering. All sheeting shall be applied on flexible delineators in the factory by the manufacturer. Field application of reflective sheeting on flexible delineator assemblies shall not be allowed unless approved by the Engineer. If the sheeting has been damaged in any way, the damaged flexible delineator post shall not be installed, and the contractor shall provide and install a new undamaged device at no additional cost to the Department. Sheeting on flexible delineators assemblies shall be one 12 -inch vertical by 3- inch horizontal strip of fluorescent yellow, silver -white, or red retroreflective sheeting, as called for on the plans. The reflector sheeting shall be installed at the horizontal center of the flexible delineator posts, with the top of the sheeting not more than 1 inch from the top of the post. The type of retroreflective sheeting for markers and all delineators excluding flexible delineator to be applied shall be as specified on the plans. The reflective sheeting type to be used for all flexible delineator assemblies shall be Type IX unless noted otherwise. 703- 2.07 Prismatic Reflectors: Prismatic reflectors for delineators and markers shall conform to the requirements of Section 1008 of the specifications. The type of prismatic reflectors to be used shall be as specified on the plans. 703- 2.08 Hardware: Steel bolts and nuts of the types shown on the plans shall be galvanized in accordance with the requirements of ASTM A153 or shall be cadmium plated in accordance with the requirements of ASTM B766. 703- 2.09 Base Transition Segments for Flexible Delineators: Base transition segments for three- piece flexible delineator assemblies shall be separate replaceable, semi -flexible or rigid, non- metallic units TABLE OF CONTENTS INDEX 728 for installation between flexible delineator posts and foundation units. The base transition unit shall include all hardware for attaching the transition unit to the flexible delineator post. The insertion length for base transition units into the flexible delineator post shall be as specified by the manufacturer. 703- 2.10 Flexible Delineator Posts: Flexible delineator posts for two- piece assemblies shall include the integral base transition segment. For three- piece assemblies, a separate base transition segment, as specified in Subsection 703- 2.09 of the specifications, shall be required between the post and foundation unit. The flexible delineator assembly shall resist overturning, twisting and displacement from wind and impact forces. The flexible delineator post shall be manufactured from an impact resistant material such that an installed delineator assembly can withstand ten vehicle impacts at 55 mph at temperatures of 40 degrees F or above without breakage or loss of serviceability, and straighten itself to within 5 deg rees of its original orientation. Little or no damage shall be caused to the impacting vehicle. The test vehicle shall be a typical sedan. The devices shall also be capable of sustaining one wheel hit during testing at 55 mph without loss of serviceabil ity. Both two - piece and three- piece flexible delineator assemblies shall comply with these requirements when tested with any of the allowable foundations. The flexible delineator posts shall be pigmented throughout the entire cross- section (or entire cross -section of the outer layer of multi -layered, multi -material units) so as to produce a uniform color which is an integral part of the material. The posts shall exhibit negligible color fading after 1,000 hours of Xenon Arc Exposure (ASTM G26). The posts shall be made of durable, ultraviolet -resistant, impact -resistant, non- warping, non- metallic, polymeric materials designed for a minimum of 120 months of outdoor service life. Two -piece and three- piece flexible delineator posts shall be sufficiently rigid to resist wilting after conditioning for a minimum of two hours at 180 degrees F ± 3 degrees F. The posts shall be conditioned for a minimum of two hours at minus 5 degrees F ± 3 degrees F in an environmentally controlled test chamber. The testing shall be performed in the environmentally controlled chamber. The devices shall be sufficiently flexible to permit three 180- degree bends at the midpoint without cracking, and with each item straightening itself to within 5 degrees of its original orientation w ithin 60 seconds. Both two- piece and three- piece flexible delineator assemblies shall comply with these requirements when tested with any of the specified foundations. Flexible delineator posts shall be shop -cut to the required lengths without permanent deformation or damage to the posts. The cut ends TABLE OF CONTENTS INDEX 729 shall be straight and true. All burrs and protruding lips from the shop- cuts shall be removed. The color of the flexible delineator post body shall be either white or near white. Each flexible delineator post shall include all hardware for attaching the flexible delineator post to the foundation unit and, if applicable, to the separate base transition segment. 703- 2.11 Foundation Units for Flexible Delineators Posts: For flexible delineators, driven and co ncreted foundation units shall be 12-gauge square tube perforated steel anchors as shown on the standard drawings. Concrete for concreted foundation units shall conform to the requirements of Section 922 of the specifications. The insertion length of flexible delineator assemblies into foundation units, as shown on the standard drawings, shall be between 2.75 inches and 12 inches for installation into the steel foundation posts, and 2.75 inches ± 0.50 inches for installation into surface- mounted units. Wal l thickness and dimensions shall comply with the standard drawings. For flexible delineators, Surface- mounted foundation units shall conform to the standard drawings and shall be bolted to the pavement or attached with adhesives, as recommended by the manufacturer. Bolt -mounted units shall accommodate a minimum of four anchor bolts for attachment to the pavement. Bolts for securing surface- mounted foundation units shall be tempered steel capable of 5,000 pounds in tension. Installation of bolted units sh all be as specified by the manufacturer. Surface- mounted foundation units attached with adhesives shall comply with the manufacturer’s recommendations for type of adhesive and construction procedures. For surface- mounted foundations for flexible delineators, should the manufacturer not specify the installation procedures, the contractor shall propose an attachment plan to the Engineer for approval. The attachment plan shall specify the installation procedure for bolted connections or, for units attached wi th adhesives, the type of adhesive to be used and the application requirements. The attachment plan shall be submitted to the Engineer at least two weeks prior to installation, and shall be such that the completed delineator assembly shall comply with the testing requirements specified in Subsection 703- 2.10 of the specifications. Flexible delineators shall be attached to surface- mounted foundations in accordance with the manufacturer’s requirements. 703- 3 Construction Requirements: 703- 3.01 Metal Posts, Plates, and Foundations: Metal posts shall be cut and perforated to the sizes and shape shown on the plans. The finished posts shall be straight with a permissible tolerance in straightness of 1/16 inch per 3 feet of post length. TABLE OF CONTENTS INDEX 730 Posts on which galvanizing has been damaged in transporting, handling or erecting shall be repaired by the contractor at its expense in accordance with the requirements of Subsection 610 -3.06 of the specifications. Metal plates shall be cut to size and shape and the holes punched for mounting all in accordance with the details shown on the plans. The surfaces and edges of the plates shall be free of buckles, warps, dents, cockles, burrs, and defects resulting from fabrication. Posts shall be set vertically to line at the locations designated on the plans. Posts, except mileposts or reference marker posts requiring concrete foundations, shall be set firmly in the ground by a method that will not bend the post or deface the top of the post. If ground conditions are such t hat the posts cannot be driven without damaging the posts, pilot holes shall be required. Metal plates shall be installed after the posts have been set in place. Posts shall be placed in the ground to the depth shown on the plans. Foundations for the mile post or reference marker posts installed on freeways shall be constructed to the details and dimensions shown on the project plans. Excavation shall conform to the requirements of Subsection 203- 5.03(A) of the specifications. Existing markers and delineat ors that are to remain in place and which have been damaged by the contractor shall be replaced with new ones at its expense. 703- 3.02 Flexible Delineators: When installation of flexible delineator assemblies are required, the work shall include, but not limited to, excavation, grading, and pavement repair . The contractor shall install either a 36 -inch, 42- inch, or 48- inch delineator at each location as required to conform to the height requirements specified on the standard drawings. Reflector color and installation requirements shall be as called for on the pl ans. The contractor may install either two- piece or three- piece flexible delineator assemblies, unless indicated otherwise on the plans. Flexible delineators assemblies shall be installed with driven or concreted foundation units as called for on the plans. For areas where flexible delineators are located on asphalt or concrete pavement, as shown on the plans, surface- mounted foundation units shall be required. TABLE OF CONTENTS INDEX