Summary Statement
A checklist to fill out prior to excavation to assure that all safety precautions have been followed and a sample daily log for trenching.
SITE LOCATION: |
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DATE: |
TIME: |
COMPETENT PERSON: |
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SOIL TYPE: (See attached form): |
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SOIL CLASSIFICATION: |
EXCAVATION DEPTH: |
EXCAVATION WIDTH: |
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TYPE OF PROTECTIVE SYSTEM USED: |
1. General Inspection of Jobsite: |
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A. |
Excavations, adjacent areas, and protective systems inspected by a competent person daily before the start of work. |
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B. |
Competent person has the authority to remove employees from the excavation immediately. |
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C. |
Surface encumbrances removed or supported. |
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D. |
Employees protected from loose rock or soil that could pose a hazard by falling or rolling into the excavation. |
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E. |
Hard hats worn by all employees. |
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F. |
Spoils, materials, and equipment set back at least two feet from the edge of the excavation. |
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G. |
Barriers provided at all remotely located excavations, wells, pits, shafts, etc. |
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H. |
Walkways and bridges over excavations four feet or more in depth are equipped with standard guardrails and toeboards. |
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I. |
Warning vests or other highly visible clothing provided and worn by all employees exposed to public vehicular traffic. |
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J. |
Employees required to stand away from vehicles being loaded or unloaded. |
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K. |
Warning system established and utilized when mobile equipment is operating near the edge of the excavation. |
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L. |
Employees prohibited from going under suspended loads. |
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M. |
Employees prohibited from working on the faces of slopes or benched excavations above other employees. |
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2. Utilities: |
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A. |
Utility companies contacted and/or utilities located. |
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B. |
Exact location of utilities marked. |
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C. |
Underground installations protected, supported, or removed when excavation is open. |
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3. Means of Access and Egress: |
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A. |
Lateral travel to means of egress no greater than 25 feet in excavations four feet or more in depth. |
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B. |
Ladders used in excavations secured and extended three feet above the edge of the trench. |
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C. |
Structural ramps used by employees designed by a competent person. |
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D. |
Structural ramps used for equipment designed by a registered professional engineer (RPE). |
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E. |
Ramps constructed of materials of uniform thickness, cleated together on the bottom, equipped with no-slip surface. |
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F. |
Employees protected from cave-ins when entering or exiting the excavation. |
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4. Wet Conditions: |
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A. |
Precautions take to protect employees from the accumulation of water. |
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B. |
Water removal equipment monitored by a competent person. |
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C. |
Surface water or runoff diverted or controlled to prevent accumulation in the excavation. |
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D. |
Inspections made after every rainstorm or other hazard-increasing occurrence. |
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5. Hazardous Atmosphere: |
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A. |
Atmosphere within the excavation tested where there is a reasonable possibility of an oxygen deficiency, combustible or other harmful contaminant exposing employees to a hazard. |
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B. |
Adequate precautions taken to protect employees from exposure to an atmosphere containing less than 19.5% oxygen and/or to other hazardous atmospheres. |
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C. |
Ventilation provided to prevent employee exposure to an atmosphere containing flammable gas in excess of 10% of the lower explosive limit of the gas. |
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D. |
Testing conducted often to ensure that the atmosphere remains safe. |
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E. |
Emergency equipment, such as breathing apparatus, safety harness and lifeline, and/or basket stretcher readily available where hazardous atmospheres could or do exist. |
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F. |
Employees trained to use personal protective and other rescue equipment. |
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G. |
Safety harness and lifeline used and individually attended when entering bell bottom or other deep confined excavations. |
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6. Support Systems: |
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A. |
Materials and/or equipment for support systems selected based on soil analysis, trench depth, and expected loads. |
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B. |
Materials and equipment used for protective systems inspected and in good condition. |
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C. |
Materials and equipment not in good condition have been removed from service. |
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D. |
Damaged materials and equipment used for protective systems inspected by a registered professional engineer (RPE) after repairs and before being placed back into service. |
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E. |
Protective systems installed without exposing employees to the hazards of cave-ins, collapses, or threat of being struck by materials or equipment. |
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F. |
Members of support system securely fastened to prevent failure. |
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G. |
Support systems provided in ensure stability of adjacent structures, buildings, roadways, sidewalks, walls, etc. |
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H. |
Excavations below the level of the base or footing supported, approved by an RPE. |
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I. |
Removal of support systems progresses from the bottom and members are released slowly as to note any indication of possible failure. |
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J. |
Backfilling progresses with removal of support system. |
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K. |
Excavation of material to a level no greater than two feet below the bottom of the support system and only if the system is designed to support the loads calculated for the full depth. |
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L. |
Shield system placed to prevent lateral movement. |
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M. |
Employees are prohibited from remaining in shield system during vertical movement. |
CORRECTIVE ACTIONS AND REMARKS: |
SAMPLE - Daily Trenching Log
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DATE: |
SIGNATURE: |
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WEATHER: |
PROJECT: |
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Was One Call System contacted: |
Yes______ |
No_______ |
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Protective system: Trench shield (box) |
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Purpose of trenching: Drainage |
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Were visual soil tests made: |
Yes_______ |
No_______ |
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If yes, what type? |
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Were manual soil tests made: |
Yes_______ |
No_______ |
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If yes, what type? |
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Type of soil: |
Stable Rock_______ |
Type A_______ |
Type B _______ |
Type C_______ |
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Surface encumbrances: |
Yes_______ |
No_______ |
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If yes, what type? |
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Water conditions: |
Wet_______ |
Dry_______ |
Submerged _______ | ||||||||
Hazardous atmosphere exists: |
Yes_______ |
No_______ |
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(If yes, follow confined space entry procedures policy; complete Confined Space Entry Permit; monitor for toxic gas(es)) |
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Is trenching or excavation exposed to public vehicular traffic (exhaust emission): Yes_______ No_______ |
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(If yes, refer to confined space entry procedures; complete Confined Space Entry Permit; monitor for toxic gas(Es)) |
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Measurements of trench: |
Depth_______ |
Length_______ |
Width _______ | ||||||||
Is ladder within 25 feet of all workers: |
Yes_______ |
No_______ |
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Is excavated material stored two feet or more from edge of excavation: |
Yes_______ |
No_______ |
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Are employees exposed to public vehicular traffic: |
Yes _______ |
No_______ |
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(If yes, warning vests required) |
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Are other utilities protected: |
Yes_______ |
No_______ |
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(Water, sewer, gas or other structures) |
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Are sewer or natural gas lines exposed: |
Yes _______ | No _______ | |||||||||
(If yes, refer to confined space entry procedures policy; complete Confined Space Entry Permit; monitor for toxic gas(Es)) |
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Periodic inspection: |
Yes_______ |
No_______ |
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Did employees receive training in excavating: |
Yes_______ |
No_______ |