Excavation Safety. If such plan varies from the Shoring System Standards established by the Safety Orders, the plan shall be prepared by a registered civil or structural engineer, but in no case shall such plan be less effective than that required by the Safety Orders. No excavation of such trench or trenches shall be commenced until said plan has been accepted by the District or by the person to whom authority to accept has been delegated by the District.
Excavation Safety. Competent person; excavation procedures; project specific protective system, including drawings, designed, sealed, and signed by NYS Licensed Professional Engineer, or as otherwise directed.
Excavation Safety. Contractors shall ensure that all its employees and subcontractors who engage in excavation and trenching activities are properly trained and supervised. Prior to excavating, the Company shall follow the appropriate Call Before You Dig (CBYD) (CT) or Dig Safe (MA) procedures to obtain a markout of utilities.
5.23.1. The competent person in charge shall identify the excavation boundaries and employees shall keep the excavation work within these limits.
5.23.2. In New York, any contractor employee(s) involved in excavating into the ground must have completed the Certified Excavator Program through Dig Safely New York, Inc. and have a current certification. In other states, any contractor employee(s) involved in excavating into the ground must have some training from their respective 811 representatives.
5.23.3. For all excavations, sloping guidelines for Type C soil shall be used unless on- site competent person is able to determine otherwise (Type A or B). Sloping in Type C soil requires a 1.5 horizontal to 1 vertical ratio. Use sloping or protective systems (shoring, trench box): • Any time the walls of excavations and trenches are unstable and have the potential for cave in. • Any time the trench is 5 feet or more in depth.
5.23.4. Excavated spoils, materials, and equipment shall not be stored closer than 2 feet from the edge of a trench or excavation. Mobile equipment shall not be operated in close proximity to the edge, unless extra precautions are taken to shore or slope the walls back to a stable slope.
5.23.5. Supporting systems, (e.g., piling, cribbing, shoring, trench box) shall be designed by a qualified person and meet accepted engineering requirements and be in good serviceable condition. Engineering documentation (Tabulated data) of appropriate ratings shall be available on-site.
5.23.6. When employees are required to work in trenches 4 feet deep or more, an adequate means of exit, such as a ladder or steps shall be used and located no more than 25 feet of lateral travel. All ladders used shall extend a minimum of 3 feet above the top of the excavation.
5.23.7. A competent person shall inspect the excavation daily and after each rainstorm or when the conditions change.
5.23.8. Employees shall not work in excavations in which there is standing or accumulating water, unless authorized by a Competent Person.
5.23.9. Do not permit anyone to be under loads handled by power shovels, backhoes, or other material handling equipment.
5.23.10. Excavation ...
Excavation Safety. Per California Labor Code Section 6500, Contractor shall possess a valid Construction Activity Permit for construction of trenches or excavations which are five (5) feet or deeper and into which a person is required to descend. When trenches or excavations five (5) feet or deeper are anticipated as part of the contract, Contractor shall possess a valid permit at the time of bidding and for the life of the contract. Contractor shall furnish copies of valid permits to TAMC. Contractor shall comply with California Labor Code Section 6705 which provides that prior to the commencement of excavation of any trench or trenches five (5) feet or more in depth, Contractor shall submit to TAMC a detailed plan showing the design of shoring, bracing, sloping, or other provisions to be made for worker protection from the hazard of caving ground during the excavation of such trench or trenches. If such plan varies from the shoring system standards established by the Construction Safety Orders, the plan shall be prepared by a registered civil or structural engineer. Plans must be submitted to TAMC at least five (5) working days prior to the commencement of excavation. If said plans are not submitted five (5) days prior to the commencement of said excavation, TAMC shall not be liable to Contractor for any delay in work caused by delinquent submission of said plans. Trenching of more than four (4) feet below the surface shall require the Contractor to promptly notify TAMC if unknown hazardous wastes, subsurface or latent physical site conditions different from those indicated or unusual site conditions are encountered, and inform TAMC as to its duty to investigate those conditions. The Contractor may file for a change order for any conditions different from those indicated.
Excavation Safety. .1 Protect excavations more than 1.25 metres deep against cave-ins or wall collapse by side wall sloping to the appropriate angle of repose, an engineered shoring/sheathing system or an approved trench box.
.1 Provide a ladder which can extend from the bottom of the excavation to at least 0.91 metres above the top of the excavation.
.2 Ensure that all excavations less than 1.25 metres deep are effectively protected when hazardous ground movement may be expected.
.3 Design trench boxes, certified by a registered Professional Engineer, and fabricated by a reputable manufacturer. Provide the manufacturer’s Depth Certificate Statement permanently affixed. Use trench boxes in strict accordance with manufacturer’s instructions and depth certification data.
.4 For excavations deeper than six (6) metres, provide a certificate from a registered Professional Engineer stating that the protection methods proposed have been properly designed in accordance with accepted engineering practice. The engineer’s certificate shall verify that the trench boxes, if used, are properly designed and constructed to suit the depth and soil conditions.
.5 Ensure that the superintendent and every crew chief, foreperson and lead hand engaged in trenching operations or working in trenches have in his/her possession a copy of Occupational Health and Safety Regulations: Part XVII: Construction, Excavation and Demolition and Part XVIII: Excavation, Underground Work and Rock Crushing.
