9−38 917.04 METHOD OF MEASUREMENT. "Remove and Replace Rural Mail Box Posts and Mountings" of the various types indicated on t he Plans will be measured by the number of such units actually installed in accordance with the Plans and/or as directed by the Engineer. 917.05 BASIS OF PAYMENT. The accepted quantities of "Remove and Replace Rural Mail Box Posts and Mountings" of the various types shown on the Plans will be paid for at the respective contract unit prices per each such unit as listed in the Proposal. The prices so-stated constitute full and complete compensation for all labor, materials, and equipment, including all excavation, backfilling, disposing of surplus materials, removing and salvaging the existing installations, setting boxes in temporary locations, and for all incidentals required to finish the work, complete and accepted by the Engineer.
918.01 DESCRIPTION. This work consists of replacing existing rural mail boxes with new 2-door
mail boxes when the existing mail boxes do not conform to the specifications of the U.S. Postal Service and/or local requirements, all in accordance with these Specifications. 918.02 MATERIALS. New rural mail boxes shall conform to the standards established by the U.S. Postal Service for materials, coatings, and paint. The doors of the new mail boxes must have embossed thereon the following inscriptions: "U.S. MAIL,” and "APPROVED BY THE POSTMASTER GENERAL.” Identification in the fo rm of a house, apartment or box number, clearly visible to the mail carrier’s approach and consistent with USPS Standards, shall be provided.
918.03 CONSTRUCTION METHODS. Mounting of new rural mail boxes on posts shall conform to
the requirements of Subsection 917.03.2, Para. c; Mounting of Mail Boxes , of these Specifications. 918.04 METHOD OF MEASUREMENT. "Rural Mail Boxes" of the various types indicated on the Plans will be measured by the number of such boxes actually installed in accordance with the Plans and/or as directed by the Engineer. 918.05 BASIS OF PAYMENT. The accepted quantities of "Rural Mail Boxes" of the various types indicated on the Plans will be paid for at their respective contract unit prices per each such box as listed in the Proposal. The prices so-stated consti tute full and complete co mpensation for all labor, materials and equipment, including removal of existing rural mail boxes, hardware and incidentals required to finish the work, complete and accepted by the Engineer. 9−39SECTION 919 TEST PITS
919.01 DESCRIPTION. This work consists of excavating exploratory test pits for the purpose of
locating existing utilities of every type, including, but not limited to, water, sewer, storm drains, gas, power distribution and communications, and for determining water table elevations and soil conditions. These excavations shall be performed at locations indicated on the Plans or as directed by the Engineer, all in accordance with these Specifications. 919.02 MATERIALS. Materials associated with test pit excavations such as backfill, subbase and base courses, bituminous pavements, loam and seeding are specified elsewhere in these Specifications. 919.03 CONSTRUCTION METHODS. Test pit excavations may include any or all of the following items, the construction methods for which are specified elsewhere in these Specifications:
a.Cutting pavement.
b.Breaking up and disposal of existing pavements.
c.Test pit excavation.
d.Backfill and compaction, where required.
e.Loam and seeding.
f.Replacement paving, which shall match as nearly as possible the existing pavement in thickness.
919.04 METHOD OF MEASUREMENT. "Test Pits" shall be measured by the number of individual
pits actually excavated, regardless of whether or not utilities were located or water table elevations were determined. 919.05 BASIS OF PAYMENT. The accepted quantity of "Test Pits" will be paid for at the contract unit price per each such excavation as listed in the Proposal. The price so-stated constitutes full and complete compensation for labor, materials, and equipment, including cutting and matching pavement, removal and legal disposal of exis ting pavements, excavation, pumping and bailing, backfilling, loaming and seeding, where required, and for all incidentals required to finish the work, complete and accepted by the Engineer. The replacement of subbase and base courses, and replacement paving and resurfacing will be paid for separately under appropriate work items. 9−40 SECTION 920 RIPRAP
920.01 DESCRIPTION . This work consists of providing dumped or placed riprap on prepared
surfaces of the sizes and layer thicknesses at the locations indicated on the Plans or as directed by the Engineer, all in accordance with these Specifications. 920.02 MATERIALS. Materials shall conform to the requirements of Subsections M.10.03,
M.10.03.1 and M.10.03.2; Riprap, Bedding for Riprap, and Stone for Riprap , respectively, of these Specifications. Gravel borrow shall conform to the requirements of Subsection M.01.02; Gravel Borrow , of these Specifications. Filter fabric shall be a material suitable for erosion control applications and shall be one of those included on the Department’s Approved Materials List. 920.03 CONSTRUCTION METHODS. 920.03.1 General. Slopes to be protected by riprap shall be free of brush, trees, stumps, and other unsuitable material and shall be graded to a smooth surface. All unsuitable material shall be removed to the depth shown on the Plans, or as authorized, and replaced with gravel borrow. Filled areas will be compacted as specified in Subsections 202.03.3, Para. a and 202.03.3, Para. b , respectively, of these Specifications. If a toe trench is shown on the Plans, it shall be excavated and maintained until the riprap is placed. Protection for structure foundations shall be pr ovided as early as the foundation construction permits. The area to be protected shall be cleaned of waste materials and the surfaces to be protected prepared as shown on the Plans. The type of riprap specified will be placed in accordance with these Specifications. Riprap shall be placed in conjunction with the construction of the embankment. The elapsed time between construction of the embankment and the placement of the riprap shall be limited to that required to permit the orderly construction of the embankment and to preclude the mixing of embankment and riprap materials. The Contractor shall maintain the riprap protection until accepted, and any material displaced by any cause shall be replaced to the lines and grades shown on the Plans at no additional cost to the State. 920.03.2 Filter Fabric . The installation of filter fabric shall strictly conform to the manufacturer’s guidelines and as modified herein.
a.The surface of finished ground must be smooth and well compacted. All rock, dirt clods, grass clumps, trash and other obstructions which will prevent the mat from laying in direct contact with the soil surface and which may cause the fabric to puncture or tear must be removed.
b.A minimum overlap width of two feet must be used. 9−41
c.Anchor pins must be installed immediately after placement of each section in order to protect from wind uplift.
d.The fabric must be toed-in at the top and toe-in or toe-wrapped at the bottom.
920.03.3 Bedding For Riprap. The bedding material shall be placed on the prepared slope or
area to the full specified thickness of each layer shown on the Plans. Placement of stone bedding must proceed from the bottom up to the top of the slope. At no time will the stone bedding be dumped onto the fabric from the top of the slope and allowed to roll down the surface of the fabric. Bedding shall be placed in one operation, using met hods which will preclude segregation of particle sizes within the layer. The surface of the finished layer should be reasonably even and free from mounds or windows. Additional layers of bedding material, when required, shall be employed which shall preclude the mixing of materials in different layers. 920.03.4 Dumped Riprap. Stone for riprap shall be placed on the prepared slope or area in a manner which will produce an evenly graded mass of stone with the minimum practical percentage of voids. The entire mass of stone shall be placed so as to conform with the lines, grades, and thicknesses shown on the Plans. Riprap shall be placed to its full course thickness in one operation and in such a manner as to avoid displacing the underlying material. Placing of riprap in layers, or by dumping into chutes, or by other methods likely to cause segregation will not be permitted. The larger stones shall be well distributed and the entire mass of stone shall conform to the specified gradation as set forth in Subsection M.10.03.2 of these Specifications. All material comprising riprap protection shall be placed and distributed to preclude large accumulations of either the larger or smaller sizes of stone. It is the intent of these Specifications to produce a fairly compact riprap protection in which all sizes of material are placed in their proper proportions. Hand placing or rearranging of individual stones by mechanical equipment may be required to the extent necessary to secure the results specified. When riprap and bedding material ar e dumped under water, thickness of the layers shall be increased as shown on the Plans. Placement methods shall be employed that will minimize segregation. 920.03.5 Placed Riprap. Stones for riprap shall be placed on a prepared slope in a pattern that contains minimum voids. The top surface of the riprap shall conform to a true and even plane with a tolerance of plus or minus 4 inches. Joints shall be broken as much as practicable, and joint openings to underlying soil shall be avoided by care ful arrangement of stone sizes and the chocking of the openings with smaller stones. Larger stones shall be placed near the base of the slope. The stones shall be laid to rest on the bank, and not on adjacent stones. This shall be accomplished by laying stones from the top of the bank, downward, to insure independent support for each such stone. 9−42 920.04 METHOD OF MEASUREMENT.
920.04.1 Filter Fabric . “Filter Fabric for Riprap” will be measured by the number of square yards of
exposed surface actually placed in accordance with the Plans and/or as directed by the Engineer. Overlapped portions of filter fabric will not be measured for payment. 920.04.2 Riprap and Bedding Material . "Riprap" or "Bedding Material" for riprap will be measured by one of the following units, each as act ually placed in accordance with the Plans and/or as directed by the Engineer:
a.Cubic Yard. By the number of cubic yards as computed from surface area measurements parallel to the riprap surface and with the thickness measured normal to the riprap surface.
b.Ton. By the number of tons as measured by the actual scale weight, in tons, of the material actually placed.
c.Square Yard. By the number of square yards as computed from surface area measurements parallel to the riprap surface. 920.05 BASIS OF PAYMENT.
920.05.1 Filter Fabric. The accepted quantity of “Filter Fabric for Riprap” 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. 920.05.2 Riprap and Bedding Material . The accepted quantities of "Riprap" or "Bedding Material" for riprap of the various types and configurations indicated on the Plans will be paid for at their respective contract unit prices per cubic yard, per ton, or per square yard, as the case may be, as listed in the Proposal. The prices so-stated consti tute full and complete co mpensation for all labor, materials, and equipment, including excavation for riprap or bedding, preparation of subgrade, hauling and placing the material, and all incidentals required to finish the work, complete and accepted by the Engineer. Riprap placed outside the specified limits will not be paid for, and the Contractor may be required to remove and dispose of the excess riprap at no additional cost to the State. SECTION 921 SLOPE PAVING
921.01 DESCRIPTION. This work consists of providing precast concrete blocks on a prepared
gravel base on slope areas at the locations indicated on the Plans or as directed by the Engineer, all in accordance with these Specifications. 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. SECTION 922 TEMPORARY CONSTRUCTION SIGNS
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
Source: Rhode Island Standard Specifications (Bluebook), 2024 Edition. Pages 570–575 of 826.