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Excavation, Shoring, and Safety Systems During Construction - Seattle The WAC has a number of regulations addressing shoring and excavations that depend on site specific site and subsurface conditions Refer to the City of Seattle Standard Specification 2-04 for more specific information on general trench shoring requirements, and for trench shoring regarding water mains
Shoring Review - Transportation | seattle. gov For any proposed excavation that would be greater than three feet deep immediately adjacent to any given public right-of-way, a shoring review through our Street Use division begins
WAC 296-155-657: - Washington (a) Option 1 — Allowable configurations and slopes (i) Excavations must be sloped at an angle not steeper than 1 1 2 horizontal to one vertical (34 degrees measured from the horizontal), unless the employer uses one of the other options listed below
Trenching Excavation - Labor Industries (L I), Washington State Excavation, Trenching, and Shoring, WAC 296-155 Part N applies to all open excavations made in the earth's surface Excavations are defined to include trenches formed by earth removal L I is conducting rulemaking to update the requirements for trenching excavating contained in Chapter 296-155, WAC
EXCAVATIONS AND SHORING - CWA District 7 When soil conditions are unstable, or other hazardous conditions are found, excavations shallower than five feet, must also be sloped, supported or shored Unregulated trenches are less than five feet deep but may require employees to enter and work within its confines to complete a task
When to use shoring - trenchmansafety. com If you dig a ditch 5’ deep (4’ deep in Washington) then you need to slope or bench the sides, use shoring, use trench shields, and or a combination of protective systems
Trenching and Excavation Safety Trenches 5 feet (1 5 meters) deep or greater require a protective system unless the excavation is made entirely in stable rock If less than 5 feet deep, a competent person may determine that a protective system is not required
Video Details - secure. lni. wa. gov CODE VIOLATION: In Washington state, trench protection is required in any excavation 4’or more deep WAC 296-155-657 Requirements for protective systems This program states the OSHA rule which is less stringent than the state of Washington Subjects Covered: Excavation, Spanish Version Titles, Trenching and Shoring Formats Available:
Chapter 296-155 WAC - Labor Industries (L I), Washington State Employees entering bell-bottom pier holes, or other similar deep and confined footing excavations, must wear a harness with a lifeline securely attached to it The lifeline must be separate from any line used to handle materials, and must be individually attended at all times while the employee wearing the lifeline is in the excavation
Seattle DCI Form - Construction Permit Checklist - Commercial Tenant . . . 1 Drainage Plans (DWC and CSC SOIL Plans) are not required for projects with less than 750 sf of new plus replaced hard surface and or 5,000 sf of land disturbing activity unless the project is in an environmentally critical area (ECA) or buffer