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DocuSign Envelope ID:81 E05E8E-EED7-43D3-8B8A-0811 OE72140A <br /> SECTION 33 34 00 - FORCE MAINS <br /> E. Excess material shall be promptly removed from the site, and the pavement or roads <br /> surface cleaned of objectionable material. The pavement and/or road surface shall be <br /> cleaned daily with a mechanical broom and/or washed if requested by the Engineer. The <br /> Contractor shall correct any future settlement within the guarantee period. <br /> F. In unpaved streets, the top 6" of the trench shall be filled with well compacted crusher-run <br /> stone. In paved areas, the top of the trench shall be filled with the specified base for <br /> pavement, well mixed and compacted. Any settlement of backfill below finish grade shall <br /> be promptly corrected. <br /> G. On cross country lines and at other points where damage to the system or property will <br /> not occur, the backfill material more than 1' above the top of the pipe may be placed in <br /> 12" layers and compacted with mechanical tamps. The upper portion of the backfill, more <br /> than 5' above the pipe, may be compacted by following with wheeled equipment. Excess <br /> material may be mounded on the trench. The Contractor will be responsible for all final <br /> subsidence of all trenches and shall leave the same flush with the original ground after all <br /> settlement has taken place. Trenches must be protected against scour due to surface <br /> drainage. <br /> H. Backfilling around manholes shall, in general, conform to requirements for backfilling <br /> trenches, except that no backfill shall be placed around manholes until all mortar has <br /> properly set and backfilling shall be carried up symmetrically around structures. <br /> 4.6 CUTTING AND REPLACING PAVEMENT <br /> A. Where pavement is to be cut for installation of pipe or other utilities, the Contractor shall <br /> cut it neatly in advance of trenching and shall replace the pavement with base and new <br /> pavement. <br /> B. All pavement shall be neatly cut to a straight edge in advance of trenching with the <br /> method of cutting being subject to approval of the Engineer. Pavement shall be cut 12" <br /> wider than the excavated area on each side. Ragged or irregular edges will not be <br /> allowed and work completed with barred edges shall be redone. Concrete pavement <br /> shall be sawed with suitable concrete saw cutting equipment. <br /> C. Trench backfilling shall be done in layers not over 6" thick and thoroughly compacted. <br /> Compacted shall be such as to prevent future settlement and shall be done by <br /> acceptable means, approved by the Engineer. Rolling with rubber-tired vehicles or track- <br /> type equipment will not be allowed. Compaction shall be at least 95% of maximum as <br /> established by AASHTO Specification T99, Method A. <br /> D. Base for pavement shall be crusher run stone for all non-NCDOT maintained streets, HB <br /> binder for all secondary highways, and reinforced concrete for all primary highways. All <br /> base shall be placed in accordance with plan and/or encroachment permit details. Base <br /> width shall be shown on the plans and/or encroachment permits for various types of <br /> pavement cuts. <br /> 1. Crusher run stone shall conform to the requirements of Section 02231. It shall <br /> be well mixed and compacted by tamping and rolling. Compaction shall be to <br /> such degree as to preclude settlement. Crusher run base material shall be <br /> placed at the same time that the trench is backfilled. Backfilling to top of ditch, to <br /> be cut out and replaced with base material at a later date, will not be allowed. <br /> 2. Crusher run base for highway pavement and adjacent drives shall be 8" of stone, <br /> stabilized with 5% Portland Cement. It shall be thoroughly mixed prior to <br /> compacting. <br /> Orange County DAA PN R00592-225N2 <br /> Walnut Grove Wastewater System January, 2021 <br /> 33 34 00-16 <br />