OBJECT MARKERS AND DELINEATORS
705-1 Description.
Furnish and install object markers to mark obstructions within or adjacent to the roadway of the types and at the locations called for in the Standard Plans or in the Plans. Furnish and install delineators along the side of the roadway to indicate the ali gnment of the roadway as indicated in the Standard Plans or in the Plans.
705-2 Materials.
705-2.1 General: Meet the following requirements:
Flexible Post Delineators* ................................ ....Section 993 Barrier Delineators* ................................ .............Section 993 Retroreflective Sign Sheeting* ............................. Section 700 *Use products listed on the Department’s Approved Product List (APL).
705-2.2 Flanged U -Channel Posts: Meet the mechanical requirements of ASTM A499,
Grade 60. Galvanize after fabrication in accordance with ASTM A123, to produce a smooth uniform finish free from defects affecting strength, durability, and appearance. Punch or drill 3/8-inch diameter holes on 1 -inch centers through the center of the post, starting approximately 1 inch from the top and extending the full length of the post. Punching or dr illing operations shall be completed prior to galvanization. The weight per foot of a manufacturer’s U -channel size shall not vary more than plus or minus 3.5% of its specified weight per foot. Machine -straighten the U-channel to a tolerance of 0.4% of the length.
705-2.3 Round Aluminum Posts: Meet the requirements of Standard Plans,
Index 700-010.
705-2.4 Retroreflective Sheeting: Use Types IV, V or XI sheeting. The retroreflective
area shall be in accordance with the MUTCD.
705-2.5 Aluminum Panel: For Object Markers and Nonflexible Delineators, adhere
retroreflective sheeting to 6061 T6 aluminum meeting ASTM B209. Use 0.040-inch sheet aluminum for Type 2 markers and nonflexible delineators. Use 0.080-inch sheet aluminum for Type 1, Type 3, and Type 4 markers. Prepare aluminum in accordance with recommendations of the sheeting manufacturer.
705-3 Installation Requirements.
Install delineators and object markers in accordance with the MUTCD, Standard Plans and Plans.
705-3.1 Object M arkers: For uniformity, all Type 1 markers shall be OM1 -3 style
markers, all Type 2 markers shall be OM2 -2V style markers, and all Type 4 (end of road) markers shall be OM4 -3 style markers. Install object markers at a mounting height of 4 feet measured in accordance with Standard Plans, Index 700-101. Attach Type 1 and Type 4 object markers to round aluminum posts in accordance with Standard Plans, Index 700-010. Install Type 2 and Type 3 object markers directly to 3 lb/ft flanged U -Channel p osts using two 1/4 -inch bolts spaced to fit holes on the post . Use attachment hardware (nuts, bolts, clamps, brackets, braces, etc.) of aluminum or galvanized steel. FY 2023-24 Return to Table of Contents
705-3.2 Flexible Post Delineators: Install in accordance with the manufacturer's
instructions.
705-3.3 Nonflexible Post Delineators: Install nonflexible post delineators on 1.1 lb/ft
flanged U -Channel. The retroreflective sheeting shall have a minimum width of 4 inches and have a minimum area of 32 square inches.
705-3.4 Barrier Delineator s: Install barrier delineators by adhesive or mechanical
means as per the manufacturer’s recommendations and in accordance with the details shown in the Plans and the Standard Plans. Install barrier delineators at a spacing of 25 feet for the first 100 feet of barrier and at 100 feet spacing thereafter. For installations with guardrail, install barrier delineators in accordance with Standard Plans, Index 536-001. Orient b arrier delineators as detailed in the manufacturer’s instructions .
705-4 Method of Measurement.
The quantity to be paid will be the number of delineators or object markers furnished, installed and accepted, with the exception of barrier delineators on new barriers, which are included in the cost of the barrier.
705-5 Basis of Payment.
Prices and payments will be full compensation for work specified in this Section, including the cost of labor, materials, and incidental items required to complete the work. Payment will be made under: Item No. 705 - 10 Object Marker - each. Item No. 705 - 11 Delineator - each. FY 2023-24 Return to Table of Contents SECTION 706 RAISED PAVEMENT MARKERS AND MARKER ADHESIVE
706-1 Description.
Raised pavement markers (RPMs) and adhesive provide a positive guidance system to supplement other reflective pavement markings.
706-2 Materials.
Use only Class B markers, except as follows: For center line rumble strip installations where RPMs are in conflict with the grinding, install Class D RPMs wit h the first application of standard paint. Remove Class D RPMs prior to grinding, then install Class B RPMs in an unground area after grinding. Install Class F RPMs only when shown in the plans. Meet the requirements of Section 970.
706-2.1 Product Ac ceptance on the Project: Use only RPMs and adhesive that are
listed on the Department’s Approved Product List (APL). For Class F RPMs, provide a warranty assigned to the Department in accordance with Section 970.
706-3 Bituminous Adhesive Equipment.
Use equipment having either thermostatically controlled double boiler type units utilizing heat transfer oil or thermostatically controlled electric heating pots to install hot applied bituminous adhesive. Use a melter/applicator unit suited for both melting an d pumping the bituminous adhesive through heated applicator hoses. Heat the bituminous adhesive to between 375°F and 425ºF and apply directly to the bonding surface from the melter/applicator by either pumping or pouring. Maintain the application temperat ure between 375°F and 425ºF. The bituminous adhesive may be reheated. However, do not exceed the manufacturer’s recommendations for pot life at application temperatures.
706-4 Application.
Install RPMs in accordance with the Plans and Standard Plans , Indexes 706-001 and 711-003, prior to opening the road to traffic . Apply RPMs to the bonding surface using bituminous or epoxy adhesives in accordance with the manufacturer’s instructions. Use epoxy adhesives when applying RPMs on concrete pavement. For Class F RPMs, installation may include the removal of roadway surface material to recess a portion of the RPM housing. Prior to application of adhesive, clean the portion of the bonding surface of any material which would adversely affect the adhesive. Apply the adhesive to the bonding surface (not the RPM) so that 100% of the bonding area of the RPM will be covered, in accordance with adhesive manufacturer’s recommendations. Apply sufficient adhesive to ensure that when the marker is pressed downward into th e adhesive, adhesive will be forced out around the entire perimeter of the RPM. Immediately remove excess adhesive from the bonding surface and exposed surfaces of the RPMs. Soft rags moistened with mineral spirits meeting Federal Specifications TT -T-291 or kerosene may be used to remove adhesive from exposed faces of the RPMs. Do not use any other FY 2023-24 Return to Table of Contents