616Median and Island Pavement

616.01 Description. This work consists of constructing paved medians and islands on

prepared grades in accordance with these specifications and in reasonably close conformity with the lines, grades, and sections shown on the plans or established. When so indicated on the plans, this work shall also consist of painting the surface, or portions thereof, of the median or island.

616.02 Materials.

616.02.1 Concrete. The materials used in the manufact ure of concrete shall conform to

the requirements of Section 804 for the class of concrete specified. Unless otherwise specified, Class "C" concrete shall be used.

616.02.2 Joint Filler . Joint filler shall be the type specified on the plans and shall

conform to the requirements of Section 707. Unless otherwise specified, the filler shall be ½-inch premolded filler meeting the requirements of Subsection 707.02.2.

616.02.3 Asphalt Pavement . Asphalt pavement shall be in accordance with the

applicable materials and construction requirements of Sections 401 and 403.

616.03 Construction Requirements.

616.03.1 Equipment. The equipment shall conform to the applicable requirements of

Sections 401, 501, and 804, except that approved modified placement, shaping, compacting, and finishing equipment will be permitted. All small tools, such as edgers, floats, tamps, etc., shall be approved tools of such quality and quantity as to assure their adequacy in the performance of acceptable work. Approved required equipment shall be on the project in good working condition before construction will be permitted to start.

616.03.2 Preparation of Grade. Unless otherwise specified, in-grade preparation shall

be performed in accordance with the appli cable provisions of Section 321. After completion of grade preparation, the entire ar ea shall be treated with a soil sterilant as follows:

616.03.3 Forms. Forms will not ordinarily be required. If specified or necessary, forms

and forming shall be in accordance with the requirements of Subsection 608.03.3.

616.03.4 Manufacturing and Placing Concrete . Concrete for this work shall be

manufactured and placed in accord ance with the requirements of Section 501 or Section 804 except that approved m odified methods of placement, shaping, and compacting will be permitted. Concrete surfaces shall be gi ven a Class 6 float finish in accordance with Subsection 804.03.19.5. The fresh concrete shall be deposited in a single layer on a moist grade. The edges, shall be thoroughly spaded, and the surface shall be tamped sufficiently to compact the concrete and bring mortar for finishing to the surface. The finished surface shall conform closely to the typical section indicated on the plans and shall not have irregularities that would prohibit complete surface drainage, including drainage over adjacent curb. The edges of the concrete at expansion joints shall be edged to a radius of 1/2 inch.

616.03.5 Expansion Joints. Unless otherwise shown on the plans, expansion joints shall

be formed of premolded joint filler of the specified thickness. All joint fillers shall be cut to full cross section and shall extend to full depth, width, and length. All expansion joint material extruding after the concrete is finished shall be trimmed as directed. In the event the locations are not shown on the plans, joints shall be placed between all edges of the median or island pavement and the surrounding curb or pavement. Where applicable, joints shall be placed to match expansion and contraction joints in adjacent curb or pavement.

616.03.6 Protection and Curing. After the pavement is finished, it shall be protected

and cured in accordance with the requirement s of Subsection 501.03.20 or by other approved method. Placement, protection, and curing of concrete during cold and hot weather shall conform to the limitations, conditions and requirements of Subsection 804.03.16.

616.03.7 Manufacturing and Placing Bituminous Pavement. Asphalt pavement used

in construction of median and island pave ment shall be manufactured and placed in accordance with the requirements of Sections 401 and 403, except that approved modified methods of placement, shaping, and compacti ng will be permitted. The pavement shall consist of the layers and types shown on the plans. The surface of the finished pavement shall conform closely to the typical section indicated on the plans and shall not have irregularities that would prohibit complete surface drainage, including drainage over