9−43921.02 MATERIALS. The nominal size of the concrete blocks shall be 16" x 8" x 4". The concrete shall be Class A(AE) and shall conform to SECTION 601; PORTLAND CEMENT CONCRETE , of these Specifications. Mortar for the joints shall conform to Subsection M.04.03.5 of these Specifications. Gravel borrow shall conform to the requirements of Subsection M.01.02; Gravel Borrow , of these Specifications. 921.03 CONSTRUCTION METHODS. The blocks shall be laid on a compacted gravel base spaced to provide 3/8-inch joints. Vertical joints shall be staggered to the center of each block. The finish surface of the slope paving shall be reasonably smooth and true to the finish grades and sections indicated on the Plans. Mortar for a ll joints shall be poured over the blocks and thoroughly brushed into the 3/8-inch space to the full depth of the joint. 921.04 METHOD OF MEASUREMENT. "Slope Paving" will be measured by the number of square yards in the face area of the surface actually paved in accordance with the Plans and/or as directed by the Engineer. 921.05 BASIS OF PAYMENT. The accepted quantity of "Slope Paving" will be paid for at the contract unit price per square yard as listed in the Proposal. The price so-stated constitutes full and complete compensation for all l abor, materials, and equipment, and all incidentals required to finish the work, complete and accepted by the Engineer.
922.01 DESCRIPTION. This work consists of providing temporary construction signs at the
locations indicated on the Plans or as directed by the Engineer, all in accordance with these Specifications. 922.02 MATERIALS. 922.02.1 Sign Construction . Plywood or aluminum sheeting, reflective sheeti ng, wood posts, and other materials shall conform to the applicable requirements of SECTION M.16; SIGNS AND SIGN SUPPORTS , of these Specifications.
922.03 CONSTRUCTION METHODS. 922.03.1 Design and Fabrication . Signs provided under this Specification shall conform in type,
size, dimensions, color, design, and placement to the schematic drawings contained in the current 9−44 edition of the Manual on Uniform Traffic Control Devices, including the latest corrections and additions thereto, and as indicated on the Plans. Signs and devices shall be erected prior to the beginning of the work as directed. No work shall proceed until the necessary signs have been erected. The signs shall be immediately removed when the need no longer exists as determined by the Engineer, and shall be replaced without cost to the State if, in the opinion of the Engineer, they are damaged to the extent that the original purpose of erection is no longer being served. All signs shall be reflectorized in accordance with Subsection M.16.02 of these Specifications, shall be well constructed, legible, and have a fresh, clean appearance. Sign standards and their location shall conform to the applicable provisions of the Manual on Uniform Traffic Control Devices published by the U. S. Government Printing Office. The Contractor shall be required to provide the number and type of construction warning and guide signs ordered by the Engineer. Signs shall be reused as required or directed by the Engineer at the various locations as the sequence of construction progresses. This work shall be performed at no additional expense to the State. All signs shall be continuously maintained to the satisfaction of the Engineer. All damaged signs shall be replaced and repaired with reasonable immediacy. 922.03.2 Sign Mountings. Temporary construction sign mountings shall conform to the details indicated on the Plans.
a.Portable Support Systems. When construction operations are such that wood post mounting is impractical, temporary construction signs shall be mounted on portable support systems specifically designed for such use. Such support systems may be one of those products which appear on the Department's Approved Materials List. In no case will the bottom of the sign be mounted less than one foot above the surface upon which traffic is required to ride during the time the signs are in place. 922.04 METHOD OF MEASUREMENT. "Temporary Construction Si gns" will be measured by the number of square feet of such signs actually provided in accordance with the Plans and/or as directed by the Engineer. 922.05 BASIS OF PAYMENT. The accepted quantity of "Temporary Construction Signs" will be paid for at the contract unit price per square foot as listed in the Proposal. The price so-stated constitutes full and complete compensation for all labor, materials, and equipment, including mountings, placing signs at their initial locations and for eventually removing said signs from their final locations, and all incidentals required to finish the work, complete and accepted by the Engineer. Payment for removing temporary construction signs from their initial locations and for handling, maintaining, transporting, and relocating said signs to storage or to subsequent intermediate locations at which they are to be used for traffic control is not included in this Section 9−45but is included under SECTION 937; MAINTENANCE AND MOVEMENT OF TRAFFIC PROTECTIVE DEVICES , of these Specifications. SECTION 923 PORTABLE CHANNELIZING DEVICES AND BARRICADES
923.01 DESCRIPTION. 923.01.1 General. This work consists of providing portable barricades of various types and
configurations at the locations indicated on the Plans or as directed by the Engineer, all in accordance with these Specifications and MUTCD standards. 923.01.2 Types of Portable Channelizing Devices and Barricades. The following types of portable barricades are currently in use by the Department:
a.PVC Plastic Pipe Barricade (MUTCD, Type III).
b.Plastic Pipe Barricade with Sandbag Base (MUTCD, Type III).
c.Polyethylene Drum Barricade.
d.Fluorescent Traffic Cones.
923.02 MATERIALS. 923.02.1 PVC Plastic Pipe. Plastic pipe shall be white polyvinyl chloride pressure rated, Class
SDR 21 or SDR 26, conforming to the applicable requirements of either ASTM D2241 or ASTM D2729. 923.02.2 Polyethylene Plastic Pipe. Pipe shall be white, rotationally moulded polyethylene plastic conforming to the applicable requirements of ASTM D1248, Class II A3-E4 or Class II A4. 923.02.3 Polyethylene Drum. The drum shall be manufactured from polyethylene plastic in accordance with details indicated on the Plans and in conformance with MUTCD standards. 923.02.4 Fluorescent Traffic Cones. Cones shall be a plastic, fluorescent, commercially produced product that conforms to the details indicated on the Plans. The conical upper portion shall be 100 percent polyvinyl chloride having a highly pigmented, non-injurious fluorescent red-orange color. The upper section shall be fused to a non-painted white base in accordance with the manufacturer's recommendations. 923.03 CONSTRUCTION METHODS. 923.03.1 Design and Fabrication. Portable barricades and devices provided under this Specification shall conform in type, size, dimension, color and design with their respective details as
Source: Rhode Island Standard Specifications (Bluebook), 2024 Edition. Pages 575–577 of 826.