OAR 437-004-3100
Excavation

(1)

Definition. Excavation — A man-made cut, hole, pit, trench or depression in the earth.
NOTE: Before any digging you must comply with Oregon’s “Call Before You Dig” law. Call 1-800-332-2344.

(2)

Five feet or more. Employees must not enter any excavation 5 feet or deeper unless protective systems are in place to protect from cave-in or sloughing.

(3)

Less than 5 feet. Employees must not enter any excavation less than 5 feet deep when the sides are losing their shape, are loose or show other signs of being unstable unless protective systems are in place to protect from cave-in or sloughing.

(4)

Strength. Systems installed in the excavation must be strong enough and engineered to provide protection from hazards of the particular excavation.

(5)

Design. Systems must be as follows:

(a)

Designed by a registered professional engineer.

(b)

Designed using the manufacturer’s or other tabulated data.

(6)

Follow instructions. When using manufactured systems, follow the instructions and do not exceed the limitations of the system.

(7)

System size. Systems must extend from the bottom of the excavation to at least the top edge.

(8)

Sloping. Sloping is an acceptable system to protect workers. Sloping must be at a ratio of at least 1 1⁄2 to 1. That means a horizontal setback of 1 1⁄2 feet for every 1-foot of trench depth.

(9)

Access/Exit. There must be a safe way, such as a ladder or steps, to get into and out of excavations 4 or more feet deep. In trenches, these exits must be at least every 25 linear feet.

(10)

Water. Workers will not enter excavations where there is accumulating water, either from ground seepage or surface run-off, unless there are adequate protections from hazards caused by the water.

(11)

Inspect daily. A person familiar with these rules and the work must inspect all excavations daily, before workers enter or reenter.

(12)

Spoils and equipment. Keep soil and material removed from the excavation (spoils) at least two feet away from the edge of the excavation or restrained. Equipment that could roll or fall into the excavation must also be at least two feet back or restrained.

Source: Rule 437-004-3100 — Excavation, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=437-004-3100.

437‑004‑0001
Application 437‑004‑0002
Scope 437‑004‑0003
Exclusive Coverage 437‑004‑0005
Access to Employee Exposure and Medical Records 437‑004‑0099
General Standards 437‑004‑0100
Universal Definitions 437‑004‑0150
Standards Organizations 437‑004‑0240
Safety Orientation for Seasonal Workers 437‑004‑0251
Safety Committees and Safety Meetings 437‑004‑0310
Working Surfaces 437‑004‑0320
Guarding Floor and Wall Openings and Holes 437‑004‑0330
Fixed Industrial Stairs 437‑004‑0340
Portable Ladders 437‑004‑0350
Orchard Ladders 437‑004‑0360
Fixed Ladders 437‑004‑0370
Scaffolding 437‑004‑0380
Manually Propelled Mobile Ladder Stands and Scaffolds (Towers) 437‑004‑0390
Other Working Surfaces 437‑004‑0405
Exits and Emergency Action Plan 437‑004‑0450
Emergency Action Plan 437‑004‑0570
Manlifts 437‑004‑0610
Ventilation 437‑004‑0630
Noise Exposure 437‑004‑0650
Ionizing Radiation 437‑004‑0710
Compressed Gases 437‑004‑0715
Acetylene 437‑004‑0716
Oxygen 437‑004‑0717
Hydrogen 437‑004‑0720
Flammable and Combustible Liquids 437‑004‑0725
Spray Finishing 437‑004‑0770
Explosives and Blasting Agents 437‑004‑0780
Storage and Handling of Liquefied Petroleum Gases 437‑004‑0790
Use of Liquefied Petroleum Gas or Natural Gas in Fields and Orchards 437‑004‑0800
Storage and Handling of Anhydrous Ammonia 437‑004‑0950
Hazardous Waste Operations and Emergency Response (HAZWOPER) 437‑004‑1005
General Requirements for Protective Equipment 437‑004‑1020
Personal Fall Protection 437‑004‑1030
Work Clothing 437‑004‑1035
Eye and Face Protection 437‑004‑1041
Respiratory Protection 437‑004‑1050
Head Protection 437‑004‑1060
Hand, Foot, and Extremity Protection 437‑004‑1070
Working Underway on Water 437‑004‑1075
Working Over or In Water 437‑004‑1105
Sanitation 437‑004‑1110
Field Sanitation for Hand Labor Work 437‑004‑1115
COVID-19 Workplace Requirements for Employer-Provided Labor Housing 437‑004‑1120
Agricultural Labor Housing and Related Facilities 437‑004‑1140
Lighting 437‑004‑1150
Safety Colors for Marking Physical Hazards 437‑004‑1180
Accident Prevention Signs 437‑004‑1250
Confined and Hazardous Spaces 437‑004‑1260
Manure Lagoons, Storage Ponds, Vats, Pits and Separators 437‑004‑1275
The Control of Hazardous Energy (Lockout/Tagout) 437‑004‑1305
Medical Services and First Aid 437‑004‑1430
Sources of Fire 437‑004‑1440
Required Postings 437‑004‑1450
Extinguishers 437‑004‑1460
Fire Prevention Plan 437‑004‑1470
Employee Equipment and Training 437‑004‑1505
Air Receivers and Pressure Systems 437‑004‑1525
Boilers and Steam Systems 437‑004‑1610
General Requirements 437‑004‑1630
Conveyors 437‑004‑1670
Automotive Hoists 437‑004‑1680
Storage of Hazardous Chemicals 437‑004‑1700
Forklifts and Other Powered Industrial Trucks 437‑004‑1750
Helicopters 437‑004‑1805
Rope, Chain, Rigging, and Hoists 437‑004‑1825
Tackle and Hoisting Equipment 437‑004‑1910
General Equipment Guarding 437‑004‑1940
Farm Field Equipment 437‑004‑1970
Farmstead Equipment 437‑004‑2000
Powered Saws 437‑004‑2100
Grinders 437‑004‑2220
General Requirements — Small Tools 437‑004‑2230
Guarding and Operation of Portable Powered Tools 437‑004‑2240
Power Lawnmowers 437‑004‑2260
Other Portable Tools and Equipment 437‑004‑2310
General Requirements 437‑004‑2350
Oxygen-Fuel Gas Welding and Cutting 437‑004‑2400
Arc Welding and Cutting 437‑004‑2810
General Requirements 437‑004‑2850
Temporary Lighting and Wiring 437‑004‑2860
Flexible Cable and Extension Cords 437‑004‑2870
Attachment Plugs and Receptacles 437‑004‑2880
Cord and Plug-Connected Equipment 437‑004‑2900
Grounding and Bonding 437‑004‑2950
Switches and Circuit Breakers 437‑004‑3000
Identification and Load Ratings 437‑004‑3050
Work Near Overhead Lines 437‑004‑3075
Agricultural Buildings with Special Hazards 437‑004‑3100
Excavation 437‑004‑3410
Agricultural, Commercial and Industrial Vehicles 437‑004‑3420
Working from Vehicles and Vehicle Loads 437‑004‑3430
Training for Agriculture Tractor Operators 437‑004‑3460
Industrial Vehicles 437‑004‑3480
Bridges, Roads and Ramps 437‑004‑3550
Servicing Multi Piece and Single Piece Rim Wheels 437‑004‑3600
Roll-Over Protective Structures (ROPS) for Tractors in Agriculture 437‑004‑3650
Roll-Over Protective Structures — Industrial Vehicles 437‑004‑3660
Vehicle-Mounted Elevating and Rotating Work Platforms 437‑004‑6000
Adoption by Reference of Federal Standard 437‑004‑6001
Expiration and Implementation Dates 437‑004‑6401
Effective dates for worker training programs in Oregon 437‑004‑6405
Restrictions Associated With Outdoor Production Pesticide Applications 437‑004‑6406
Pesticide Spray Drift and Innovative Methods 437‑004‑6501
Handler training programs in Oregon 437‑004‑6502
Oregon requirements for Worker Protection Standard trainers of handlers who qualify using train-the-trainer programs 437‑004‑6508
Respiratory Protection 437‑004‑6509
Emergency eye-washes and eye flushing supplies 437‑004‑9000
Oregon Rules for Air Contaminants 437‑004‑9010
Fumigated Areas. 437‑004‑9050
Asbestos 437‑004‑9090
13 Carcinogens 437‑004‑9600
Lead 437‑004‑9620
Cadmium 437‑004‑9626
Chromium (VI) 437‑004‑9640
Benzene 437‑004‑9650
Bloodborne Pathogens 437‑004‑9710
Acrylonitrile 437‑004‑9720
Thiram 437‑004‑9740
Ethylene Oxide 437‑004‑9760
Formaldehyde 437‑004‑9780
Methylendianiline 437‑004‑9800
Hazard Communication Standard for Agricultural Employers 437‑004‑9830
Retention of Department of Transportation (DOT) Markings, Placards and Labels 437‑004‑9850
Pipe Labelling 437‑004‑9860
Hazardous Chemicals in Laboratories
Last Updated

Jun. 8, 2021

Rule 437-004-3100’s source at or​.us