SECTION 221 - PAVED DITCHES
221.01 Description. This work consists of constructing paved ditches of hydraulic
cement concrete or hot bituminous plant mix, as specified in the contract and constructed in accordance with th e provisions and requirements of these specifications, and in reasonably close conformity w ith the lines, grades, typical cross sections, and locations shown on the plans or established.
221.02 Materials.
221.02.1 Concrete Paved Ditches . The materials used in the construction of cement
concrete paved ditches shall conform to the applicable provisions and requirements of Section 804.
221.02.2 Bituminous Paved Ditches . The materials used in the construction of
bituminous paved ditches shall conform to the applicable requirements for hot bituminous mixtures as set out in Section 401.
221.02.3 Reinforcement. Reinforcement shall meet the requirements of Subsection
221.03 Construction Requirements.
221.03.1 General. The foundation for paved ditches shall be formed by excavating to
the required depth and dimensions below the prepared finished surface grade of the paved ditch. The foundation shall be thoroughly compacted by hand tamping or other approved method. Soft, spongy, or other unsuitable material shall be removed as directed and replaced with suitable material thoroughly compacted in six inch layers. The forms used in this construction may be wood or metal; shall have a depth equal to the prescribed edge thickness of the paved ditch; and shall be of sufficient strength to withstand the weight of the concrete or bituminous mixture and the pressure incidental to vibration or compaction without bulging or displacement. Forms shall be securely staked and braced. Reinforcement, if specified, shall be placed in a manner that will ensure its proper position in the paved ditch section after all concrete is placed.
221.03.2 Concrete Paved Ditches . Unless otherwise specified on the plans, the
concrete paved ditches shall be constructed of Class "C" concrete, mixed and placed in accordance with the applicable requirements of Section 804, and cured in accordance with the requirements of Subsection 501.03.20 or by other approved methods. The limitations of mixing and placing shall conform to the requirements of Subsection
501.03 12.
A template mounted on the side forms shall be used in striking off and finishing the surface of the concrete to th e required shape and dimensi ons. The entire unit shall be constructed monolithic with smooth fillets or curves at all angles or breaks in flow lines. Concrete shall be placed beginning at the bottom of the slope and progressing upward.
Paved Ditches in other states
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