Manholes and Catch Basins Sample Clauses

Manholes and Catch Basins. Pre-cast concrete manholes shall be provided at all changes in direction of the sewer and at all street intersections, but no further apart than 120 m. Manholes shall be 1200 mm diameter or larger, conforming to OPSD Series 700. Benching shall be provided in all manholes. Catch basin manholes shall contain a sump or minimum depth of 300 mm below lowest invert on sewers up to and including 450 mm diameter. Frames and covers shall be OPSD 401.01 Type A, or approved equal, set on not less than three (3) layers nor more than six (6) layers of brick which shall be parged on the outside face. Catch basins shall be provided on both sides of the street at all low areas but no further apart than 90 m. Catch basins for depth up to 2 m from ground level to invert shall be 600 mm square concrete conforming to OPSD 705.01. For greater depths, catch basins- manholes shall be used conforming to OPSD 701.03.
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Related to Manholes and Catch Basins

  • Irrigation An irrigation reduced pressure zone (hereinafter referred to as “RPZ”) is required for any irrigation systems and must be installed by the Developer and/or eventual lot owner and tested in accordance with the Minnesota Department of Health Guidelines for Designing Backflow Prevention Assembly Installations (hereinafter referred to as “Guidelines”). The initial test results and certification shall be submitted to the City of Maple Grove Public Works Department. Subsequently, the RPZ must be tested, per the Guidelines, at least annually by a certified tester with the results reported to the City of Maple Grove Building Department and the RPZ must be rebuilt as needed in accordance with the Guidelines. Test/rebuilt reports shall be mailed or faxed to the City of Maple Grove Building Department at (000) 000-0000. The irrigation system shall be designed and the Plans shall be modified accordingly, prior to the issuance of any permits for the development of the Property, to accommodate a 1-inch water meter and a maximum flow of 50 gallons per minute.

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