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Backfilling in any street opened or excavated pursuant to an excavation permit issued hereunder shall be compacted to a degree equivalent to that of the undisturbed ground in which the trench was dug. Compacting shall be done by mechanical tappers or vibrators, by rolling in layers, or by water settling, as required by the soil in question and sound engineering practices generally recognized in the construction industry. The decision as to whether a trench shall be backfilled by water settling shall be based upon such engineering practices and shall be made by the Deputy Service Director/Superintendent of Engineering. When water is taken from a fire hydrant the permittee shall assign one man to operate the hydrant and shall make certain that such man has been instructed by the City Water Department in the operation of the hydrant. The Water Department shall like wise be notified at both the beginning and end of the job so that the condition of the fire hydrants can be checked on both occasions. Any damage done to the hydrant during the excavation shall be the responsibility of the permittee. Water shall be paid for by the permittee on the terms agreed upon with the Water Department. (Ord. 2002-106. Passed 11-2-02)
(a) Backfilling by Water Settling. When backfilling is done by water settling, excavated materials above utility installations shall be deposited uniformly in layers of not more than five feet in thickness and shall be thoroughly flooded. During the flooding the water shall be allowed to flow slowly to the trench from high points and shall be worked down to the full depth of the layer of backfill with bars. All bars used shall be long enough to extend entirely through the layer being filled and shall be forced down through the loose backfill material. As the bars are withdrawn the water shall be allowed to flow downward around the bar. The channel or hold formed by the bar shall be kept open and the water kept running into it until the fill has settled. All work shall be done in such manner as to obtain a relative compaction through the entire depth of the backfill of not less than that existing adjacent to the excavation.
(b) Dry Backfilling. Backfilling up to the first eighteen inches above the top of the utility pipes or similar installations shall be done with thin layers. Each layer is to be tamped by manual or mechanical means. Layers that are hand tamped shall not exceed four inches in thickness. Layers that are power tamped shall not exceed six inches in thickness. The same requirements shall apply to the remainder of the backfilling if tamping is the method used for backfilling. Backfilling of all pipes of over twenty four inches in diameter shall be carried up to the spring line of the pipe in three inch layers, with each layer moistened and thoroughly tamped with suitable mechanical equipment. (Ord. 1978-27. Passed 3-1-78.)
The permittee shall restore the surface of all streets, broken into or damaged as a result of the excavation work, to its original condition in accordance with the specifications of the Deputy Service Director/Superintendent of Engineering. The permittee may be required to place a temporary surface over openings made in paved traffic lanes. Except when the pavement is to be re placed before the opening of the cut to traffic, the fill above the bottom of the paving slab shall be made with suitable material well tamped into place.
(Ord. 2002-106. Passed 11-2-02)
If the permittee has failed to re store the surface of the street to its original and proper condition upon the expiration of the time fixed by such permit or otherwise has failed to complete the excavation work covered by such permit, the Deputy Service Director/Superintendent of Engineering, if he/she deems it advisable, shall have the right to do all work and things necessary to restore the street and to complete the excavation work. The permittee shall be liable for the actual cost thereof and twenty five percent of such cost in addition for general overhead and administrative expenses. The City shall have a cause of action for all fees, expenses and amounts paid out and due it for such work and shall apply in payment of the amount due it any funds of the permittee deposited as herein provided and the City shall also enforce its rights under the permittee's surety bond provided pursuant to this chapter. (Ord. 2002-106. Passed 11-2-02)
In the event of any emergency in which a sewer, main conduit or utility in or under any street breaks, bursts or otherwise is in such condition as to immediately endanger the property, life, health or safety of any individual, the person owning or controlling such sewer, main conduit or utility, without first applying for and obtaining an excavation permit hereunder, shall immediately take proper emergency measures to cure or remedy the dangerous conditions for the protection of property, life, health and safety of individuals. However, such person owning or controlling such facility shall apply for an excavation permit not later than the end of the succeeding day during which the Deputy Service Director/Superintendent of Engineering's office is open for business and shall not proceed with permanent repairs without first obtaining an excavation permit hereunder.
(Ord. 2002-106. Passed 11-2-02)
Each permittee shall conduct and carry out the excavation work in such manner as to avoid unnecessary inconvenience and annoyance to the general public and occupants of neighboring property. The permittee shall take appropriate measures to reduce the fullest extent practicable in the performance of the excavation work, noise, dust and unsightly debris and during the hours of 10:00 p.m. and 7:00 a.m. shall not use, except with the express written permission of the Deputy Service Director/Superintendent of Engineering or in case of an emergency as herein otherwise provided, any tool, appliance or equipment producing noise of sufficient volume to disturb the sleep or repose of occupants of the neighboring property. (Ord. 2002-106. Passed 11-2-02)
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