9−11904.04.2 Post Holes in Ledge. “Post Holes in Ledge" will be m easured by the number of such holes actually installed in accordance with the Plans and/or as directed by the Engineer. Fence posts unsuitable for resetting through no fault of the Contractor shall be replaced with new posts and said new posts shall be measured for payment by the actual number of such posts furnished and installed. 904.05 BASIS OF PAYMENT .
904.05.1 Remove and Reset Fence. The accepted quantities of "Remove and Reset Fence" will
be paid for at the contract unit price per linear foot as listed in the Proposal. The price so-stated constitutes full and complete compensation for all labor, materials, equipment, backfill, pavement patch, and clearing, and all incidentals required to finish the work, complete and accepted by the Engineer. The accepted quantities of "Fence Posts Replaced" will be paid for at the contract unit price per each as listed in the Proposal. The price so-s tated constitutes full and complete compensation for all labor, materials, and equipment, and all incidentals required to finish the work, complete in place and accepted by the Engineer. 904.05.2 Post Holes in Ledge. The accepted quantities of "Post Holes in Ledge" will be paid for at the contract unit price per each as listed in the Proposal. The price so-s tated constitutes full and complete compensation for all labor, materials, equipment, including non-shrink grout or leadite backfill, and all incidentals required to finish the work, complete and accepted by the Engineer.
905.01 DESCRIPTION . This work consists of constructing sidewalks, wheel chair ramps, and
driveways on prepared gravel bases at the locations indicated on the Plans or as directed by the Engineer, all in accordance with these Specifications. Sidewalks and driveways may be constructed of either bituminous concrete or Portland cement concrete, as indicated on the Plans.
905.02 MATERIALS. 905.02.1 Portland Cement Concrete. Portland cement concrete for sidewalks, wheel chair ramps,
typical driveways and commercial dr iveways shall conform to the requirements as set forth in Subsections 601.01.1; Classification, and 601.03.1; Proportioning , of these Specifications. Concrete for sidewalk applications shall be modified by the addition of 10% to 20% ground granulated blast furnace slag (GGBFS) or fly as h as a replacement fo r Portland cement per Section 602 of these Specifications.
905.02.2 Bituminous Concrete. Bituminous concrete for sidewalks, wheel chair ramps, and
9−12 driveways shall be as noted on the plans and shall conform to the applicable requirements of Subsection 401.02 of these Specifications. Coarse and fine aggregates, mineral filler, and asphalt cement shall be combined to produce sidewalk and driveway pavements in accordance with the requirements listed under the column heading entitled, "CLASS I-2 or SIDEWALK" in Subsection
M.03.01 of these Specifications. Performance-graded asphalt cement shall conform to the requirements of Subsection
M.03.02.1 of these Specifications.
905.02.3 Other Materials.
a.Gravel Borrow shall conform to the requirements set forth in Subsection M.01.02 of these Specifications.
b.Reinforcing, when required, shall be wire-fabric that conforms to the requirements of Subsection M.05.02.1 of these Specifications.
905.03 Construction Methods.
905.03.1 Scheduling Sidewalk Construction . The Contractor shall schedule sidewalk
construction activities such that no areas are left without paved sidewalks for more than seven consecutive calendar days. This means that once the Contractor commences the removal of existing sidewalks at any location within the project, the construction of new sidewalks at that particular location must be completed within seven consecutive calendar days. Removal of sidewalks shall be performed in accordance with the provisions of Subsection
201.03.7 of these Specifications.
The Contractor may be required to saw cut and remove the existing sidewalk 2 feet behind the face of the curb and complete curb-related activities prior to removing the adjacent remaining sidewalk area. Should this work be noted on the plans and/or in the specifications, then saw cutting and any required temporary sidewalk patching material will be paid for under separate and appropriate pay items as noted in the contract’s proposal.
a.Failure to Comply. If the Contractor fails to complete the construction of any portion of new sidewalks in accordance with this Section 905 , the daily charge set forth in Special Provision Code 905.1000 will be deducted from monies then due the Contractor as a charge for failure to comply with these Specifications. Moreover, the stated daily charge will apply for every calendar day that the Contractor fails to comply with this specification.
905.03.2 Compliance with the Americans with Disabilities Act. To comply with the requirements
of the Americans with Disabilities Act (ADA), sidewalks shall provide a minimum clearance of 36 inches of width at point of narrowing, excluding the curb width, and 48 inches of continuous width elsewhere. The Contractor shall verify with the Engineer that these requirements can be met prior to completing the construction of new sidewalks. Under no circumstances shall any sidewalks be constructed without prior approval of the Engineer if it is determined that these requirements cannot be attained.
905.03.3 Portland Cement Concrete Sidewalks and Driveways.
a.Excavation. Excavation shall be made to the required depth and to a width that will 9−13permit the installation and bracing of the forms. All existing material, including gravel borrow, shall be excavated to the limits indicated on the Plans. The foundation shall be shaped and compacted to a firm even surface conforming to the section shown on the Plans. All unsuitable material shall be removed and replaced with acceptable material.
b.Gravel Borrow Subbase . The gravel base shall be placed in layers not over 6 inches in depth and compacted to the specified depth below finish grade.
c.Forms . Forms shall be of wood or metal and shall extend for the full depth of the concrete. All forms shall be straight, free from warp and of sufficient strength to resist the pressure of the concrete without springing. Bracing and staking of forms shall be such that the forms remain in both horizontal and vertical alignment until their removal.
d.Box forms. Box forms shall be formed around all appurtenances extending into and through the sidewalk. The contractor shall fill all box forms with sand immediately upon placement of the sidewalk. Sand shall be flush with the sidewalk surface. There will be no separate payment for either the material, placement or removal of the sand placed in box out areas, these costs shall be considered incidental to this contract. The final material used to fill inside the box form areas shall be the same as that specified for the sidewalk.
e.Placing Concrete . The foundation shall be thoroughly mo istened immediately prior to the placing of the concrete. The proportioning, mixing and placing of the concrete shall be in accordance with the requirements for the class of concrete specified.
f.Finishing. The surface shall be finished with a wooden float. No plastering of the surface will be permitted. All outside edges of the slab and all joints shall be edged with a 1/4-inch radius edging tool.
g.Joints . Expansion joints shall be of the dimensions specified, and shall be filled with an approved type of premoulded expansion joint filler. Sidewalks and driveways shall be divided into sections by dummy joints formed by a jointing t ool or other acceptable means as directed. These dummy joints shall extend into the concrete for at least 1/3 of the depth and shall be approximately 1/8-inch wide. At no time shall the distance between transverse and/or longitudinal dummy joints exceed 5 feet. Construction joints shall be formed around a ll appurtenances extending into and through the sidewalk. Premolded expansion joint f iller 1/4-inch thick shall be installed in these joints. Expansion joints shall be placed every 20 feet. The forcing of premoulded expansion joint filler into freshly placed concrete will not be allowed. Expansion joint filler shall be installed betw een concrete sidewalks and any fixed, smooth structure such as a building or bridge. This expansi on joint material shall ex tend for the full depth of the walk. If the sidewalk abuts an irregular wall, foundation or stationary object, the expansion joint filler shall be placed 4 inches from the irregular surface and concrete placed between the irregular surface and the expansion joint material. The maximum tolerance for the 4-inch concrete thickness is plus-or-minus ½-inch.
h.Curing . Concrete shall be cured for at least 72 hours. Curing shall be by means of moist burlap mats or by other approved methods as set forth in Subsection 601.03.8; Curing , of these Specifications. During the curing period all traffic, both pedestrian and vehicular, shall be excluded. Vehicular traffic shall be excluded for such additional time as the Engineer may direct. 9−14
i.Cutting and Matching Existing Concrete Sidewalks or Driveways. Where a newly constructed sidewalk and/or driveway abuts an existing sidewalk or driveway, the existing sidewalk or driveway shall be cut with a concrete saw only. The concrete saw shall conform to Subsection
501.03 2; Para. c of these Specifications.
After installation of the concrete driveway, the contractor shall match bituminous pavement adjacent to parking areas, walkways, and driveways within 14 days.
905.03.4 Bituminous Sidewalks and Driveways.
a.Excavation and Forms. Excavation and forms shall meet the requirements of Subsections 905.03.3; Paras. a and c , respectively. The limits of excavation will be as shown on the Plans, or as directed by the Engineer. All material within the limits of excavation must be removed and replaced with gravel borrow subbase.
b.Gravel Borrow Subbase . Gravel material shall be placed in layers not exceeding 6 inches in depth and each layer shall be compacted as specified in Subsection 301.03.2 of these Specifications.
c.Placing Bituminous Sidewalk and Driveway Material . Bituminous sidewalk and driveway material shall be placed on the compacted base in one or more courses as indicated to give the required depth when rolled. Compaction s hall be accomplished by means of a power roller of a type and weight acceptable to the Engineer. In areas inaccessible to the roller, hand tamping or hand roller will be permitted. In any case, the bituminous material shall be uniformly compacted. The Contractor shall simultaneously extend the binder and Type I-1 surface course from the project roadway into all driveways which are not constructed with Portland cement concrete for a length of 3 feet, thereby eliminating cold joints at the gutter line.
905.04 Method of Measurement.
905.04.1 Portland Cement Sidewalks and Driveways. "Portland Cement Concrete Sidewalks and
Driveways" will be measured by the number of cubic yards of pavement actually placed in accordance with the Plans and/or as directed by the Engineer.
905.04.2 Bituminous Concrete Sidewalks and Driveways. "Bituminous Concrete Sidewalks and
Driveways" will be measured by t he number of tons of pavement material actually placed in accordance with the Plans and/or as directed by the Engineer.
905.05 BASIS OF PAYMENT. 905.05.1 Portland Cement Concrete Sidewalks and Driveways. The accepted quantities of
"Portland Cement Concrete Sidewalks and Driveways" will be paid for at the contract unit price per cubic yard as listed in the Proposal. A maximum 5 percent overrun of the calculated quantities based on the required thickness as shown on the Plans is permissible. The price so stated constitutes full and complete compensation for all labor, materials and equipment, including expansion joint material, reinforcement, and all inci dentals required to finish the work, complete and accepted by the Engineer. Excavation and gravel borrow subbase will be paid for separately under appropriate work items.
Source: Rhode Island Standard Specifications (Bluebook), 2024 Edition. Pages 543–546 of 826.