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General Provisions (00100-00999)

707ADJUST DRAINAGE AND UTILITY STRUCTURES

RI · 2024 Standard SpecificationsBook pages 322326View official source ↗

7−16 706.02 MATERIALS. Plugs and caps for cast iron pipe shall be of the type approved by the utility company for a particular application.

a.Plugs and caps for vitrified clay pipe shall be of the type recommended for this purpose by the manufacturers of said pipe.
b.Cement or brick masonry plugs shall consist of approved cement or brick masonry units securely bedded with cement mortar.
c.Cement mortar shall conform to the requirements of Subsection M.04.03.5 of these Specifications. 706.03 CONSTRUCTION METHODS. The plugs described above shall be placed in all lines where indicated or directed when such lines are broken into during construction. All such plugs shall produce watertight joints. Plugs and caps installed in pressure lines shall be properly strapped and blocked to withstand the anticipated back pressure. Vitrified clay and cement or brick masonry shall be properly and securely set in place, blocked and protected to preclude infiltration or exfiltration due to hydrostatic pressure. 706.04 METHOD OF MEASUREMENT. "Plug and Cap Pipe All Sizes" will be measured by the number of each such unit actually installed regardless of the size or type. 706.05 BASIS OF PAYMENT. The accepted quantity of "Plug and Cap Pipe All Sizes" will be paid for at the contract unit price per each such unit as listed in the Proposal. The price so-stated is full and complete compensation for all labor, materials and equipment required to provide said plugs or caps and for all incidentals required to finish the work, complete and accepted by the Engineer.

707.01 DESCRIPTION. This work consists of adjusting drainage structures, telephone, electrical,

and sanitary manholes to those new grades and details indicated on the Plans or as directed by the Engineer, all in accordance with these Specifications.

707.02 MATERIALS. Materials shall conform to the applicable paragraphs of Subsection 702.02.1;

Masonry Unit Construction , of these Specifications. 7−17707.03 CONSTRUCTION METHODS.

707.03.1 General. In addition to the applicable paragraphs of Subsection 702.03.1 of these

Specifications, the following special requirements shall also apply. When structures are to be adjusted in paved areas, cutting and matching pavement will be required. Cutting and matching pavement shall be performed in accordance with SECTION 932 of these Specifications. When paved areas are open to traffic, the exposed vertical faces of adjusted structures shall be painted with iridescent orange reflective paint if less than or equal to 1-3/4 inches. An asphalt ramp shall be provided in case s where the exposed vertical face exceeds 1-3/4 inches. Castings shall be carefully removed and stored and the walls of the structure adjusted to the proper line and grade by the removal or addition of bricks and mortar. Walls shall be plastered with ½-inch cement mortar where required. Castings shall be reset to the proper line and grade in a bed of mortar. Prior to the placement of the final bituminous concrete cour se and following the secondary bituminous concrete course binder, an area of 1 foot outside the top of the frame shall be removed to a depth of 9 inches below the surface course. This area shall then be compacted and replaced with a Class A(AE) concrete collar to the level of the secondary bituminous course. The Contractor shall maintain access to all catch basins and utility manholes at all times.

707.03.2 Narragansett Bay Commission Structures. In addition to the requirements of

Subsection 707.03.1 , the Contractor must obtain a Sewer Facility Permit from the Narragansett Bay Commission prior to removing any frame, cover or grate from any manhole or catch basin and prior to modifying and/or exposing any manhole, catch basin or service connection within the boundaries of the Narragansett Bay Water Quality Management District. The Contractor must strictly adhere to all conditions set forth in the Bay Commission's permit.

707.04 METHOD OF MEASUREMENT. "Adjust Catch Basins,” "Adjust Manholes,” "Adjust

Telephone Manholes,” "Adjust Electrical Manholes,” "Adjust Sanitary Manholes,” and "Adjust Narragansett Bay Commission Sanitary Manholes" will be measured by the number of each type structure actually installed in accordance with the Plans and/or as directed by the Engineer.

707.05 BASIS OF PAYMENT. The accepted quantities of "Adjust Catch Basins,” "Adjust

Manholes,” "Adjust Telephone Manholes,” "Adjust Electrical Manholes,” "Adjust Sanitary Manholes,” and "Adjust Narragansett Bay Commission Sanitary Manholes" will be paid for at the respective contract unit prices per each such structure as listed in the Proposal. The prices so-stated constitute full and complete compensation for all labor, materials, equipment and all incidentals required to finish the work, complete and accepted by both the Engineer and the representative of the particular utility company involved. In the case of "Adjust Narragansett Bay Commission Sanitary Manholes,” the contract unit price shall also include the application fee for the Sewer Facility Permit. 7−18 SECTION 708 CLEANING AND FLUSHING PIPES AND DRAINAGE STRUCTURES

708.01 DESCRIPTION. This work consists of cleaning storm drains and drainage structures of all

types and sizes as designated on the Plans or as directed by the Engineer, all in accordance with these Specifications. 708.02 MATERIALS. 708.02.1 Equipment. Equipment for cleaning pipe lines includes hoses, rodding machines, balls, hydraulic cleaners, root cutters, small clam shell buckets, steel porcupines, pumps, or other suitable and approved means. 708.02.2 Water. Water used for cleaning and flushing drai nage pipes shall be fresh and free of oil, acid, salt, alkali, organic matter, or any other deleterious substances. The Contractor shall provide all water required for the cleaning operation. 708.03 CONSTRUCTION METHODS. 708.03.1 Operation of Drainage System During Cleaning. The Contractor shall be responsible for the proper operation of the storm drainage system during the cleaning operations. The safe control of storm flows shall be accomplished by the Contractor such as to preclude any injury to persons or property due to flooding. 708.03.2 Cleaning Methods. The Contractor shall clean and flush all storm drain lines as designated on the Plans by use of pressure hoses, suction pumps, and/or any other methods required to perform this work. A suitable weir or dam shall be constructed in the nearest downstream manhole or catch basin in such a manner that debris material will be trapped. Under no circumstances shall such material be passed on from one section to the next. Each manhole or catch basin shall be cleaned independently of other portions of the storm drainage system. All cleaning work shall be performed to the complete satisfaction of the Engineer.

708.03.3 Disposal of Debris Collected. Disposal of all material collected shall be done in

accordance with all requirements of applicable State agencies as described below.

a.Sand and/or Gravel. This debris is sand that may be mixed with salt used on streets, roads or highways for winter storm operations or gravels which have entered the storm drainage system.
1.Acceptable Uses. This material must be dry prior to placement.
a.Landfill Cover (may require screening). 7−19
b.Road Base, or any base course applicable that will be covered with an asphalt or concrete layer.
c.Backfill for public works construction projects other than areas adjacent to concrete pipes and structures.
d.Clean fill, only when analytical testing for Total Petroleum Hydrocarbons (TPH), Toxicity Characteristic Leaching Procedure (TCLP), and Total Lead (TL) have been performed and submitted to RIDEM, Division of Waste Management, for review of reuse application.
2.Unacceptable Uses. As unrestricted clean fill in areas that will expose the debris to human contact such as:
a.Fill on residential properties, public parks or playground.
b.Fill near pristine waterways, drinking water watersheds, wellhead protection areas, areas with groundwater classified as GAA, and areas within 200 feet of a private drinking water well, or in any other manner that would be inconsistent with State and Federal laws or regulations.
3.Other Debris. All other debris collected from pipes and structures shall be legally disposed of in accordance with all applicable State agencies laws and regulations. 708.04 METHOD OF MEASUREMENT. "Cleaning and Flushing Pipe - All Sizes" will be measured in linear feet from center-to-center of drainage structures for all pipe lines actually cleaned, regardless of the sizes of said pipe, in accordance with the Plans and/or as directed by the Engineer. "Cleaning Manholes" and "Cleaning Catch Basins" will be measured by the number of such drainage structures actually cleaned, regardless of si ze or type, in accordance with the Plans and/or as directed by the Engineer. 708.05 BASIS OF PAYMENT. The accepted quantity of "Cleaning and Flushing Pipe - All Sizes" will be paid for at the contract unit price per linear foot as listed in the Proposal. The accepted quantities of "Cleaning Manholes" and "Cleaning Catch Basins" will be paid for at the respective contract unit prices per each such structure as listed in the Proposal. The prices so-stated constitute full and complete compensation for all labor, materials, and equipment required to conduct this operation by normal methods, and for all incidentals required to finish the work, complete and accepted by the Engineer. SECTION 709 CONCRETE FOR THRUST BLOCKS HEADWALLS AND MISCELLANEOUS PURPOSES

709.01 DESCRIPTION. This work consists of providing Portland cement concrete for thrust and

7−20 bearing blocks, headwalls, and other miscellaneous purposes at locations designated on the Plans or as directed by the Engineer, all in accordance with these Specifications. 709.02 MATERIALS. The classifications of concrete for thrust blocks, headwalls, and other miscellaneous purposes shall be as set forth in Table I of Subsection 601.01.1 of these Specifications. Such concrete shall also conform to other applicable requirements of SECTION 601; PORTLAND CEMENT CONCRETE , of these Specifications.

709.03 CONSTRUCTION METHODS. 709.03.1 Thrust or Bearing Blocks. Concrete thrust or bearing blocks for backing up tees, bends

and hydrants shall be installed at designated locations or as directed by the Engineer. Installation of thrust blocks shall include the placing of concrete and any additional excavation as required. Straps associated with thrust blocks shall likewise be provided. 709.03.2 Headwalls . Concrete construction shall conform to the applicable requirements of SECTIONS 808 and 702; CAST-IN-PLACE STRUCTURE CONCRETE MASONRY and MANHOLES, INLETS AND CATCH BASINS , respectively, of these Specifications.

709.04 METHOD OF MEASUREMENT. "Concrete" for the purposes specified in this Section will

be measured by the number of cubic yards of such material actually placed in accordance with the Plans and/or as directed by the Engineer. 709.05 BASIS OF PAYMENT. The accepted quantity of "Concrete" used for thrust or bearing blocks, headwalls, or for any other miscellaneous purpose will be paid for at their respective contract unit prices per cubic yard as listed in the Proposal. The prices so-stated constitute 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. SECTION 710 CUT-INS FOR MANHOLES, CATCH BASINS AND PIPE

710.01 DESCRIPTION. This work consists of cutting into existing manholes, catch basins, and

pipe to accommodate new construction at locations indicated on the Plans or as directed by the Engineer, all in accordance with these Specifications. 710.02 MATERIALS. Materials for brickwork shall conform to the applicable requirements of Subsection M.04.03. of these Specifications.

Source: Rhode Island Standard Specifications (Bluebook), 2024 Edition. Pages 322326 of 826.