2205 - FLEXIBLE DELINEATOR POSTS AND ANCHORING DEVICES 2200-8
2205.1 Description
This specification covers flexible delineator posts and anchoring devices.
2205.2 Requirements
a. General.
1.Provide delineator posts consisting of a flexible, durable, UV resistant and non-discoloring material that meet all the requirements of the MUTCD. Provide posts to which retroreflective sheeting can be applied, and are capable of recovering from 5 cold weather impacts between 27 and 37F and 5 hot weather impacts between 80 and 90F. Upon installation, the delineator must be resistant to overturning, twisting, or displacement from wind and vehicle forces. For 2-piece systems, the post must be compat ible with an anchor that holds the post in place by a locking mechanism, or with a bolting arrangement.
2.When shown in the Contract Documents, apply High Intensity retroreflective sheeting that complies with SECTION 2201 . Apply white or yellow retroreflective sheeting to 1 or 2 sides as stated in the Contract Documents. The total length and color of the post are shown in the Contract Documents.
3.Delineators are required to meet the crashworthy criteria for category I devices contained in the testing and acceptance guidelines of the National Cooperative Highway Research Program (NCHRP) Report 350.
2205.3 Test Methods
a. Tensile Strength and Elongation. Test flexible delineator posts an d anchoring devices is accordance with the procedures referenced in ASTM D 638 and ASTM G 154. b. Impact Resistance Test. Test flexible delineators for impact re sistance as prescribed by the AASHTO National Transportation Product Evaluation Program (NTPEP ) test procedures for flexible delineator posts and plastic barrels. The manufacturer must submit Impact Resistance data for tests that have been performed on the identical product by the AASHTO NTPEP test location that includes both hot and cold weather conditions. Forward an official copy of the test report along with evidence that the product referenced is identical to that submitted for prequalification, to the Engineer of Tests for evaluation. c. Crashworthy Test. Test delineators as prescribed by the NCHRP Report 350 for category 1 devices. Federal Highway Administration (FHWA) guidance indicates that category 1 devices may be accepted based on a self-certification by the manufacturer. This certification may be a one-page affidavit signed by the manufacturer, with documentation supporting the certification (crash tests and/or engineering analysis) kept on file by the certifying organization. Forward an offi cial copy of the certification with evid ence that the product referenced is identical to that submitted for prequalification, to the Engineer of Tests for evaluation.
2205.4 Prequalification
The flexible delineator post, complete with appropriat e anchor, will be prequalified as a system or unit by KDOT. Manufacturers interested in prequalifying items under this specification must submit 2 complete units (posts with appropriate anchors), the Impact Resistance test data, and the Crashworth y Certification to the Engineer of Tests. The sample will be tested for compliance with all requirements of this specification and the producer will be notified in writing of the test results. A list of qualified ma terials will be maintained by the Bureau of Construction and Materials.
2205.5 Basis of Acceptance
Prequalification as required by subsection 2205.4. Receipt and approval of a Type C certification in accordance with DIVISION 2600.
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Source: Standard Specifications for State Road and Bridge Construction, 2015 Edition. Pages 912–912 of 978. View official source ↗