619PIPE CULVERT END TREATMENTS

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After the concrete has set sufficiently, the side forms shall be removed and the spaces on both sides shall be backfilled with suitable material. This backfill shall be compacted to a level 1 inch {25 mm} below the walk or driveway and left in a neat and workmanlike condition.

Detectable warning surfaces shall be installed according to the details shown in the plans and the manufacturer’s recommendations.

618.04Method of Measurement

The quantity of accepted sidewalks or driveways will be measured, complete in place, and the area computed in square yards {square meters}. Measurement for separate payment for foundation backfill will only be made when Item 214-B is provided in the proposal and such is ordered by the Engineer. Detectable warning surfaces shall be measured per square foot {square meter}, complete in place. Curb ramps shall be measured in square yards {square meters} and shall include the areas within the pay limits shown on the plans.

618.05Basis of Payment

The accepted quantity of sidewalk or driveway will be paid for at the contract unit price for Concrete Sidewalks or Concrete Driveways, complete in place, which shall be payment in full for furnishing all materials (including joints), for the hauling, preparation, and placing of all materials, for the preparation of the subgrade, excavation, backfilling, and for all labor, equipment, tools, and incidentals necessary to complete the work. Payment for detectable warning surfaces shall include preparation of the underlying surface, labor, equipment, tools, and incidentals necessary to complete the work. Payment for curb ramps shall include all excavation, subgrade preparation, grading, making transitions in the curb and gutter, construction of joints, and for all labor, equipment, tools, and incidentals necessary to complete the work.

618—A Concrete Sidewalk, ____ inch(es) {mm} Thick - per square yard {square meter} 618—B Concrete Driveway, ____ inch(es) {mm} Thick - per square yard {square meter} 618—C Detectable Warning Surface - per square foot {square meter} 618—D Curb Ramp – per square yard {square meter} PIPE CULVERT END TREATMENTS

619.01Description

This Section shall cover the work of constructing a pipe culvert end treatment in accordance with these specifications and the plan details, at the locations shown on the plans or directed. Unless specified otherwise on the plans or in the proposal, the Contractor may, for the required end treatment, either furnish and install a prefabricated pipe culvert concrete end section or construct a slope paved headwall, all in accordance with plan details and these specifications. Class 1 shall designate those end treatments which do not require a grate. Class 2 shall designate those end treatments which do require a grate.

619.02Materials

All materials furnished for use shall conform to the appropriate requirements of Section 614; Division 800, Materials; the plan details; and the following:  Concrete end sections shall comply with the requirement shown by plan details and Section 850 for Class 3 pipe except that the three-edge-bearing test will not be required.  Concrete end sections with metal sleeves shall comply with the provisions noted above. The metal sleeve shall comply with the appropriate provisions of Articles 850.02 and 850.03. Metal sleeves used in conjunction with coated and/ or paved invert pipe shall be coated using the same coating, with the exception of paved invert, used in the pipe culvert to which the sleeves MINOR STRUCTURE CONCRETE 500

are attached. In lieu of the bituminous coating, the Contractor may substitute a polymeric coating meeting the requirements specified in Item 850.02(c)2.  Safety grates, when required, shall be fabricated in accordance with plan details.

619.03Construction Requirements

All excavation involved shall be in accordance with the provisions of the Sections for the type pipe involved and Section 214. Backfilling shall be as specified under Sections 210, 214 and the applicable Pipe Culvert Section.

When prefabricated end sections are used, they shall be installed and securely affixed to the pipe line as shown on the plans or directed, all in conformity with the established lines and grades for the structure. When slope paved headwalls are used, they shall be constructed as shown on the plans.

619.04Method of Measurement

The number of end treatments measured for payment will be the actual number of end treatments of the designated size and class, complete in place, on each designated pipe culvert.

619.05Basis of Payment

The ordered and accepted pipe culvert end treatment of the designated class for each size and appropriate type of pipe to which the end treatment is attached, measured as noted above, will be paid for at the contract unit price bid for the end treatment. Such price shall be full compensation for the furnishing of all materials and the installation and construction thereof, except for the items of Structure Excavation and Foundation Backfill, necessary for the complete construction of the end treatment, and for all labor, tools, equipment, and incidentals necessary to complete the work.

619-A ___ inch {mm} * Pipe End Treatment, Class ____ - per each 619-B ___ inch {mm} Span, ___ inch {mm} Rise * Pipe End Treatment, Class ____ - per each * Specify Roadway or Side Drain. MINOR STRUCTURE CONCRETE

620.01Description

This Section shall cover the work of constructing minor concrete structures such as pipe culvert headwalls, inlets and junction boxes, concrete steps, coping walls, and other miscellaneous items. All of which shall be constructed in accordance with the details shown on the plans and these specifications to the lines and grades established by the plans or directed.

620.02Materials

All materials furnished for use shall conform to the requirements of Division 800, Materials, and the following:  Section 501 Structure Concrete  Section 502 Reinforcing Steel

620.03Construction Requirements

The concrete mix used for minor structure work shall be Class A concrete unless otherwise provided by plan details, all in accordance with the appropriate provisions of Section 501.

Excavation and backfill shall be in accordance with the provisions of Sections 210 and 214.

Construction, forming, placing, etc. of the structures shall be in accordance with the requirements given in Section 501.