Step 1 – Determine the level of your slope by using a laser level or water level. What is the required safety factor for components of a multiple lift rigging assembly? 900lbs. How building owners can achieve OSHA-required safety requirements using fall protection and fall restraint for all who go on their roofs. 28 and 1910. New Compliance Option Included (2) The street, walkway, refuge area, or open. 2 Excavations Made in Type B Soil . o On stairways more than 44 inches wide but less than 88 inches wide, one handrail on each enclosed side and one stair railing on each open side. If a gangway is not practicable, a straight ladder meeting the requirements of 1918. As the wheelchair moves forward, it then tips onto both front casters and one rear wheel. The adjoining slope at walk or street shall not exceed 1:20 (sloping towards the curb ramp surface). The Occupational Safety and Health Administration (OSHA) has issued massive revisions to its regulations requiring most employers to protect employees from slip and fall hazards in most workplace contexts. Under these regulations, employers are. The Oregon OSHA Yarding and Loading Handbook is a comprehensive guide for logging operations that covers safety standards, best practices, and common hazards. If a walkway is in a consistently wet area, it must have proper drainage, mats and dry. Part 4 Compensation to Injured Workers and Their Dependants. 1910. the contractor provide for the safety of the public during construction. The technical requirements for trails, picnic and camping facilities, viewing areas, and beach access routes are in chapter 10 of the ABA Standards. HEIGHT CLEARANCE minimum 6’6” clearance from nose of tread to overhead obstruction. If any obstruction within 18″ of the latch side projects more than 8″ from the face of a door or gate, maneuvering clearances for a forward approach must be provided. The ADA ramp slope must be no steeper than 1:12 (1 inch of vertical rise to 12 inches of ramp length. Rather than just relying on friction to provide a safe walking surface when traveling up a slope, Kee Walk utilizes stair sections for a safe and ergonomic ascent. You can also contact us by mail at the above office, Room N3468, 200 Constitution Avenue, N. In some areas, the walkway actually slopes back in toward the building and water is leaking into the the building by migrating around the door threshold. 1917. Good call on un-safety. RAILINGS open-sided stairs < 44” require 1 stair rail/side; open-sided stairs > 44” require 1 stair rail and 1 separate handrail/side. curb ramp. WIDTH ≥ 22” between railings. Consider providing a minimum 2,300 mm head room clearance to increase safety. 1- 2000 Safety Code for Elevators and Escalators,. Wheelchair ramp degree slope ratios are provided in the ADA guideline. Portions of accessible routes with running slopes steeper than 5% also must be treated as ramps. 34 degrees) slope or bench. As a general rule, you'll need aisles. 0 ACTIVITY DESCRIPTION 1. Except as otherwise provided in paragraph (b) of this section, each employee engaged in roofing activities on low-slope roofs, with unprotected sides and edges 6 feet (1. Curb Ramp. 8 m) or more above lower levels shall be protected from falling by a guardrail system, safety net system, or personal fall arrest system. Start by evaluating the slope of your landscape. 5 million construction workers then covered by subpart L) to support the 1986 proposal for subpart L, based on a review of accident data prepared by the Bureau of Labor Statistics (BLS) (Ex. Partner Portal +1 (800) 851-5181. Pedestrian’s speed is an important parameter for modelling and simulating pedestrians’ crowd movement under normal and emergency conditions. 15005 - safety belts and lines)Use proper illumination in walkways, staircases, ramps, hallways, basements, construction areas and dock areas. 29 (b) (1): The top edge height of top rails, or equivalent guardrail system members, is 107. , hills, mountains, steep or otherwise hazardous inclines, unstable slope Width and Height. Curb ramps should meet the same general thresholds for repair as sidewalks. . The preferred slope for a building access ramp is 1:12 or 1 inch of rise per 12 inches of horizontal run - that's roughly an 8% slope also written as a 4. Keep areas around light switches clear and accessible. No ramp or walkway shall be inclined more than a slope of one (1) vertical to three (3) horizontal (20 degrees above the horizontal). The following checklist can be used as a method of minimizing slip, trip and fall incidents using readily available resources as defined by OSHA under General Requirements for Walking-Working Surfaces 1910 Subpart D (1910. Aisle markings are no exception. 23 (a) (2) Designed into or is an integral part of machines or equipment. This webpage provides an overview of the Americans with Disabilities Act (ADA) and its implications for designing accessible sidewalks and pedestrian facilities. as a footwalk along shafting or a walkway between buildings. The Occupational Safety and Health Act requires employers to comply with safety and health standards promulgated by OSHA or by a state with an OSHA-approved state plan. All simple slope excavations 20 feet or less in depth shall have a maximum allowable slope of 1:1. " Employers must keep these areas clean and dry whenever possible. Exit Routes (Means of Egress). Failure to provide adequate slope can lead to wet and damaged foundations, deterioration of the driveway and walkway, and low spots where water collects. OSHA has issued a final rule on Walking-Working Surfaces and Personal Fall Protection Systems to better protect workers in general industry from these hazards by updating and clarifying standards and adding. Cross Slope - The grade that is perpendicular to the dominant direction of pedestrian travel. A customer called and asked, “I’m interested in how you attained OSHA approval of your safety surfaces, as you claim on your tread plates. • The presence of traffic or a body of water at the bottom of a slope adjacent to a pedestrian path. AN point board, plus called adenine kickplate, is a vertical projection free the walking surface around the edges of the walkway. Confined spaces include, but are not limited to, tanks, vessels, silos, storage bins, hoppers, vaults, pits, manholes, tunnels, equipment housings, ductwork, pipelines, etc. Fire safety and evacuation plans shall be provided for all occupancies and buildings where required by the Florida Fire. 96 in wet conditions. reasonably raise themselves. Search. Occupational Safety and Health Administration 200 Constitution Ave NW Washington, DC 20210 1-800-321-OSHA 1-800-321-6742. Sidewalk Buffer Zone A pedestrian’s safety and comfort in the roadway environment is largely dependent on the width and quality of the buffer between the sidewalk and the roadway. retardant resin formulations in a safety yellow color. The directive provides guidance and inspection procedures for the enforcement of the standard. Table 2. 450 (b) as: a portion of a scaffold platform used only for access and not. Exception: Simple slope excavations which are open 24 hours or less (short term) and which are 12 feet or less in depth shall have a maximum allowable slope of ½:1. The agency’s standard on walking-working surfaces for general industry (1910 Subpart D) was developed to help prevent dangerous falls from height or slips and trips on the same level (working surface). The standard focuses on proactive safety management — meaning that OSHA expects employers to find and fix workplace hazards BEFORE they become an issue. 81 Friday, No. g. 68(c)(3)(v) – and this regulation lacks a. 2. That a “qualified person” is required to perform walkway inspections. gov Walking-Working Surfaces: Designated areas What is a designated area? When employees work on a low-slope roof, a non-traditional type of fall protection (the designatedThe following is an excerpt from OSHA 1910. This resource has ALL the OSHA safety construction regs organized and available to download free. Mr. If your roof exceeds a 4 inch vertical rise for every 12 inches of horizontal length, then this osha low slope roof. The standard focuses on proactive. If a curb ramp is located where pedestrians must walk across the ramp, the ramp must have flared sides of no more than 1:10 (10 percent) slope. 164 • Grain Handling - 1910. If necessary, slope may be increased to an absolute maximum of 10%, and only for light loads. This eTool* specifically provides information on OSHA's Powered Industrial Truck requirements [ 29 CFR 1910. 500; 29 CFR 1926. It does not alter or determine compliance responsibilities in OSHA standards or the Occupational Safety and Health Act of 1970. 46 m 2) for each person. The cross slope of the shoulders can be no steeper than 6H:1V. Refrigerated trucks are 50 to 60 inches. *For complete ADA ramp handrail requirements for California, view the California Building. 642. When a ramp has a slope that is steeper than 1 vertical foot to 8 horizontal feet, it should be equipped with cleats that are at least 1 foot 2 inches apart from each other. Based on the research cited, the 3 percent maximum is reasonable. Because interpreta-tions and enforcement policy may change over time, you should consult. Minimum safety guidelines for walkway safety are enforced under OSHA and ADA. These specifications apply to all portions of accessible routes, including thresholds and carpet trim. 26 (b) (2)1. Which does OSHA need to say about safely using forklift work platforms? It can be confusing. 2. EXCEPTION: Existing ramps may have width as required for stairways. OSHA and ASME B20. (a) Permanent floors and platforms shall be free of dangerous projections or obstructions, maintained in good repair, and reasonably free of oil, grease, or water. The minimum inside width between the opposing handrails must be at least 36 inches to accommodate a wheelchair. 1926. 1) All ramps must have a 1 percent cross slope, while ADA guidelines allow for a maximum of 2. Areas near schools, sporting complexes, parks and. " 7 Widening paved shoulders also provide numerous safety benefits for motorists as well as benefits for pedestrians including: Reducing numerous crash types 8. Walkways shall be of sufficient width to accommodate the pedestrian traffic, but in no case shall they be less than 4 feet (1219 mm) in width. Any sidewalk or walking path that achieves a slope of 1:20 or more is no. OregonOSHA Salem Central Office 350 Winter St. 68(c)(3)(v) – and this regulation lacks a methodology for verification. We will now cover some additional areas. The slope of existing ramps cannot exceed a 1-foot rise per 8 feet of horizontal run. 502(c)(1) Safety nets shall be installed as close as practicable under the walking/working surface on which employees are working, but in no case more than 30 feet (9. While safety should always be a top priority when operating a mower, extra precautions should be taken when mowing on a slope. 3, the clear width of walking surfaces shall be 36 inches (915 mm) minimum. 1910. 1926. The differing types and fundamentals of powered trucks. Where it is not reasonably practicable to meet the full requirements of this Standard, advice should be sought from the regulatory authority. The width of ramps that are part of a means of egress may further be determined by applicable life safety codes and requirements for minimum exit widths greater than 36”. Roof coverings installed on low-slope roofs (roof slope < 2:12) in accordance with Section 1507 shall demonstrate physical integrity over the working life of the roof based upon 2,000 hours of exposure to accelerated weathering tests conducted in accordance with ASTM G152, ASTM G153, ASTM G154 or ASTM G155. Sc. Pursuant to §1910. [29 CFR 1926. Additionally, ADA stipulates that no ramp can run. 7An overlay may be matched to the existing cross-slope unless the safety assessment report indicates otherwise. And on a steep slope footings generally need to be much deeper to assure that. Whether to do a steep ramp or steps depends somewhat on who will be using the walkway. Ramps are covered under OSHA guidelines 1926. 3. of a curb will be placed adjacent to the curb and be a minimum of 6 ft. 23 (b) General requirements for all ladders. requires walkways to be tested with a load of 1. Safety-monitoring system – a safety system in which a competent person is responsible for recognizing and warning workers of fall hazards. ADA leaves the size of the drop off to the. Ramps that measure more than 6 feet above lower levels (areas below the level at which a worker is working and could fall) should be equipped with guardrail systems. Gangways that connect. Use Terraces in a Sloping Landscape . Any working surface 4 feet or higher must be protected with guardrails on all sides at least 42″ tall and have to withstand 200 pounds of force. These barriers limit the pedestrian's ability to recognize and receive information (e. gov; Coronavirus Resources; Disaster Recovery Assistance; DisasterAssistance. 178] and industry best practices addressing: Types & Fundamentals. These passing spaces (which could be a driveway or wider section of concrete) need to be at least 60 inches on all sides. 22, addresses workplace hazards that cause slip, trip, and falls. 1910. In terms of width, industrial aisles should be at least 4 feet and at least 3 feet wider than the largest equipment that has to pass through them. Step 1 – Plan The Route. ADA ramp requirements include landings at the top and bottom of the ramp. Curb ramps and ramps to be constructed on existing sites or in existing buildings or facilities may have slopes and rises as allowed in 4. Lower level means a surface or area to which an employee could fall. 3. Please refer to OSHA's Frequently Cited OSHA Standards page for additional information. If the slope of a ramp or a walkway is steeper than one (1) vertical in eight (8) horizontal, the ramp or walkway shall have cleats not more than fourteen (14) inches (35 cm) apart which are securely fastened to the planks to provide footing. The term "exit route" means a continuous and unobstructed path of exit travel from any point within a workplace to safety outside. By properly maintaining sidewalks, parking lots, curbs and other outdoor pedestrian spaces, winter's slips, trips and falls can be reduced or eliminated. g. 2 Walkways. Ramps. , 1:12). Steep Slope Construction Document Revision Date CS-R-16 0 January 9, 2019 Page 1 of 16 1. Type B requires 4 feet horizontal to 4 feet vertical (1:1). A 21s u p p o r ting steel frame or to poor c o n t r ol of screed setting. the dock. Providing a safe walking path can be a grueling task due to the structure or slope of a roof. In rural areas or on. Dorothy's steps in her yard were problematic for visitors, so the solution was a simple exterior handrail. 3. 0 ACTIVITY DESCRIPTION 1. OSHA has issued a final rule on Walking-Working Surfaces and Personal Fall Protection Systems to better protect workers in general industry from these hazards by updating and clarifying standards and adding training and inspection requirements. 8 m) or more above lower levels shall have guardrail systems which comply with subpart M of this part -- Fall Protection;. 22] Since the first walking-working surface rule was published in the early 1970s, employers have been required to maintain their workplace in a clean, orderly and sanitary condition. Next, determine if these standards are the proper standards to follow. 1 addresses the proper illumination of these walkway surfaces, as well as parking lots. For child safety, the balusters or other decorative infill must be spaced less than 4 inches apart (a 4-inch-diameter ball should not pass between the balusters). Each surface will present you with the problems talked about previously. Gaining a basic understanding of how to measure slope is important since you can then apply that knowledge to many other situations. OSHA regulations pertaining to this installation include regulations 1910 and 1926. A walkway handrail instead guardrail system is requested to anything catwalks height than 4' above ampere lower level. 33 percent slope) maximum. 1 This document is intended to provide basic safety guidelines related to working on hazardous terrain, especially that of steep slopes (e. 2931. Temporary Pedestrian Access Routes HandbookAs most people are aware, OSHA has recently updated the 1910. 11009 or 57. 3] Thick walls, casework, shelving, columns and other elements can cause doors or gates to be recessed. Other components of accessible routes, such as ramps (405) and curb ramps (406), are permitted to be more steeply sloped. This information supports OSHA’s enforcement and outreach activities to assure safe and healthful working conditions for working men and women. The specific standard that would apply here would be 1910. This Standard defines the safety requirements relating to the elements of design, operation, and maintenance of low lift and high lift powered industrial trucks controlled by a riding or walking operator, and intended for use on compacted, improved surfaces. Ramps, Runways, and Other Walkways – 29 CFR 1926. The raised button surface we use to make ramps and treads has a COF of 0. Your observation correctly identifies OSHA's omission to change the §1910. That a “qualified person” is required to perform walkway inspections. 2. When scaffold platforms are more than 24 inches (61 cm) above or below a point of access, ladders, ramps, walkways, or similar surfaces must be used. Low Maintenance Railing can Last Decades. Designed to Exceed Global Standards. OSHA defines a low-slope roof as a roof having a slope of less than or equal to 4 inches of vertical rise for every 12 inches horizontal length (4:12) (1926. 2] and Cross Slope [§405. The ones in the upper picture look fairly sizeable too. 1. 1 Assess the Slope. Ramp Requirements . gov; USA. 9, the slope of the floor in the shallow area of a pool shall not exceed 1 unit vertical in 10 units horizontal (10-percent slope) for Class C pools and 1 unit vertical in 12 units horizontal (8-percent slope) for Class B pools. 500(b)—definitions). The running slope is to be uniform along a run, although slight variations may occur with certain materials such asapplicable OSHA standard requires it, OSHA strongly recommends that all employers have an EAP. Safety net systems and their use shall comply with the following provisions: 1926. Each employee on a walkway located within a scaffold shall be protected by a guardrail system (with minimum 200 pound toprail capacity) installed within 9½ inches (24. Curb ramps built to the maximum slopes can easily fall out of compliance with just a slight displacement. 29 (b) (1) The top edge height of top rails, or equivalent guardrail system members, are 42 inches (107 cm), plus or minus 3 inches (8 cm), above the walking-working surface. + More Info. 29(d) Designated areas. Walkways are available from 4-ft to 10-ft and bridges are available. A Rooftop Walkway Designed for Slopes. (Title 24, Part 2, Section 2-3306(a) without "Note. 1 Doors. 22 (a) Whenever practicable, a gangway of not less than 20 inches (. A straight walkway down a steep slope does not serve as a good and safe idea. 1. 22 m) or more in depth so as to require no more than 25 feet (7. Walkways shall be properly sloped (drained) to eliminate pooling of water. 451 (e) (5) (ii) - No ramp or walkway shall be inclined more than a slope of one (1) vertical to three (3) horizontal (20 degrees above the horizontal). Ensure the landing area is at least 1. b. 851 (c) In a multistory building, when a stairwell is being used, it shall be properly illuminated by either natural or artificial means, and completely. The area shall be permanently maintained and identified as a safe dispersal area. Kee Walk can be used on used on flat, barrel and sloping roofs and is designed to provide a level walking surface for slopes up to 35 degrees. This is the first OSHA requirement to be aware of. Appendix A is a summary of the salient aspects of the legislation applicable to the provision of safe slope access. Where the slope is greater than one unit vertical in 20 units. The 12″ limit also applies to the clearance between multiple posts (excluding the sloping portions of handrails). Aisles and walkways are clean and free of clutter. 28; 1910. Authority:. the Construction Sites (Safety) (Amendment) Regulations (CSSR(A)). In addition to the influence on pedestrian safety, ramp also influence the walking comfort and efficiency of pedestrians in our daily lives. 25(b)(3) Landings - Curb ramps: A minimum 5 ft. 91 m) above the upper landing. Part 2 Occupational Health and Safety; Part 3 Workers' Compensation System;. 1020, OSHA has simply moved the standard from Subpart C to Subpart Z of the Part 1910 - Occupational Safety and Health Standards. OSHA did have a requirement for a slip resistance of 0. Each working level of a scaffold must be fully planked or decked. g. First, OSHA requires that all scaffolds be designed by a person who is qualified to design a safe structure. 1. Pedestrian access, accommodation, and safety should be given full consideration during all project planning, scoping, and design. 451 and the general requirements mandated under sub section (e) (5). 6 (1) Where an employee has access to an open-top bin, hopper, vat, pit or other open-top enclosure from a point directly above the enclosure, the enclosure shall be (a) covered with a grating, screen or other covering that will prevent the employee from falling into the enclosure; or (b) provided with a walkway. S. Sharpe: This is in response to your letter requesting guidance in applying the 1910. B. gov; Coronavirus Resources; Disaster Recovery Assistance; DisasterAssistance. 501 (Duty to have fall protection), 1926. 5, but this was only for structural steel walking surfaces, and this requirement was rescinded in January of 2006. S. Next, just tap the app’s Pitch button and the pitch is instantly. 3. Changes in level above a ½″ must be treated as a ramp or curb ramp (or a walkway if a slope no steeper than 1:20 can be achieved). This can be done by hand or with the help of a machine. Standard Specifications. KeeWalk is designed to be installed on metal roofs up to 35 degree slope, or approximately 8:12 pitch roofs. (. When altering an existing pedestrian facility and conditions preclude the construction of a curb ramp slope of 1:12, provide a slope from 1:12 to 1:10 with a maximum rise of 6 inches. 3. OSHA issued a compliance directive for its excavation standard on July 1, 2021. 1 m) below such level. However, there must be extra height added to barriers that deflect. Requirements apply equally to public and employee or restricted parking. g. Access Board, 1991). The forklift safety guidelines apply to all employers across the United States with forklifts in their premises. When the running slope, or grade, of a sidewalk exceeds 5% it is a ramp. NSFI Walkway Auditing Guideline (WAG) Ref. In terms of width, industrial aisles should be at least 4 feet and at least 3 feet wider than the largest equipment that has to pass through them. 501(b)(11) A steep roof has a slope greater than 4 in 12 (vertical to horizontal). The specific standard that would apply here would be 1910. Occupational Safety and Health Administration 200 Constitution Ave NW Washington, DC 20210 1-800-321-OSHA 1-800-321-6742 Federal Government White House; Benefits. Numerous questions were asked about when handrails would be required as well. James Sharpe Consolidated Engineers Services 2345 Crystal Drive Suite 1000 Arlington, Virginia 22202. Walkways are maintained in dry condition. It can be used on flat, barrel, or sloping roofs, with steps and a traverse option so you can create access to virtually any roof configuration from 0. Semitrailers, flatbeds and straight trucks all have bed heights that closely align with 48-inch-high platforms, so loading dock platforms most commonly are 44 to 48 inches high. by Jean Tessmer, RME, ASID It may seem impossible to meet the flatness required by the Americans with Disabilities Act’s (ADA’s) less than two percent (1:50) maximum slopes for random traffic floors, landings, walkways, sidewalks, curb ramps, entrances, exit ways, ramps, and intersections at. Equipment standards on slip, trip. While you will see ramps at steeper slopes including the range of 0° to 18° of slope in the illustration shown here and ramps with slopes as steep as 20° in older. Type C requires 6 feet horizontal to 4 feet vertical (1-1/2:1). Ponding water can be a slip hazard, especially in the winter when the water freezes. The bleacher-type seating has an occupant load of less than 15,000; 1. Part 3 Workers' Compensation System. 3-1). 23 (a) (1) Used in emergency operations such as firefighting, rescue, and tactical law enforcement operations, or training for these operations; or. Occupational Safety and Health Administration 200 Constitution Ave NW Washington, DC 20210 1-800-321. 2 Design the Walkway. It covers the key ADA requirements, design standards, and best practices for accommodating pedestrians with disabilities. Emergency exits and routes are marked and unobstructed. If you are building the walkway yourself, you will need access to equipment such as a wheelbarrow, shovels and other tools that will. If, for example, you had a stairway with a vertical rise of 21″, you would need 21′ of ramp. Cages and wells are not ladder safety systems. Any slope above 15% is considered steep. Trench walls can be angled or sloped downward and/or include flat benches or steps. Risk Management, Safety and OSHA, Construction. 1 Safety Standard for Conveyors and Related Equipment. 3. OSHA Guardrail Requirements: Height and Strength. Part 1 Scope of Act. Most of the rules within the regulation became effective in 2017, with several more phased in before 2019. 1926. It is sometimes referred to as a "ship's ladder. Any surface, whether vertical, slanted, or horizontal, on which employees walk, including areas that. 20210, although there. Wheelchair ramps can be no steeper than 1:12, with 1:20 being preferred. - 4. October 27, 1995. Here is a list of five current OSHA standards for work platforms that you may not be aware of. 7] The ramp, or ramp run, must be at least 36 inches wide, not including the flared sides. 1926. If a gangway is not practicable, a straight ladder meeting the requirements of § 1918. This allowance provides some design flexibility. A variable-sloped pedestrian walkway that links a fixed structure or land with a floating structure. The OSHA gangway rail requirements are found in OSHA section 1910. Walkway railings are intended to keep pedestrians safe on designated bike paths or park trails. 29(b)(2)(i-iv):Any roof walkway system needs to satisfy the load-bearing requirements contained in regulation BS EN 516:2006. 29(d)(1) When the employer uses a designated area, the employer must ensure: 1910. A 20 Fire Extinguishers - Fire extinguishers are accessible, signed, and correctly located, with operating instructions and current inspection tags. 652 to make the standard easier to understand, permit the use of performance criteria where possible, and provide construction employers with options when classifying soil and selecting employee. 0 percent. When engaged in roofing work on low-slope roofs 50 feet or less in width, the use of a safety monitoring system without a warning line system is permitted. An exit must lead directly outside or to a street, walkway, refuge area, or to an open space with access to the outside. CE approved to EN 516 Class 1-C offers security of product performance. Advisory 402. [ §307. OSHA maintains a listing of the most frequently cited standards for specified 6-digit North American Industry Classification System (NAICS) codes. Height. Environmental Health & Safety Office Walking and Working Surfaces Guide 07/2015 2 o On stairways less than 44 inches wide having both sides open, one stair railing on each side. , loss of vision prevents the individualThe top of all rooftop crossovers. 451 (e) (5) (iii) - If the slope of a ramp or a walkway is steeper than one (1) vertical in eight (8) horizontal, the ramp or walkway shall have cleats not more than. Top of gripping surfaces of handrails shall be 34 inches (865 mm) minimum and 38 inches (965 mm) maximum vertically above walking surfaces, stair nosings, and ramp surfaces. Safety 19 Emergency Lighting/Exit Lights/Emergency Exits - Exit lights are on emergency circuits and in operation at all times. 1926. Any path of travel shall be considered a ramp if its slope is greater than 1 foot rise in 20 feet of horizontal run. The applicable standards are 1910. We have not changed or modified the standard language. Occupational Safety and Health Administration. 5. For Landscape and Horticultural Services, use NAICS code 561730 in the NAICS search box. S. Such. ADA ramps must be at least 36 inches wide, which allows people using wheelchairs or other mobility devices to safely navigate the ramp. Excavating is recognized as one of the most hazardous construction operations. 29(b)(1): To meet OSHA’s guardrail height requirements, the top rail needs to be 42 inches plus or minus 3 inches above the walking-working surface. 501 (b) (1) Unprotected sides and edges. Step 1 – Determine the level of your slope by using a laser level or water level. The control zone and safety monitor systems are not to be employed on roofs steeper than 4 vertical to 12. The Roadway Work Zone Safety and Health Partners. 2] and Cross Slope [§405. The handbook provides detailed information on topics such as planning, equipment, rigging, signals, landing, and loading. Return to index New query §3272.