Archive for the ‘Construction’ Category

Photographs That Support Our Safety Message

Wednesday, January 13th, 2010

As per the eLCOSH Use Policy – this is a screenshot of the browse page at CPWR — The Center for Construction Research & Training, elcosh.org/images.

One of the difficulties faced by safety professionals is finding the right image to show during training and other times—whenever conveying a safety message to others.  I’ve been consciously building a photo gallery of the “good, bad and the ugly” for over 30 years.  My early OSHA compliance photos got left in the Federal files and anyway, they suffered from the media of their day (Kodak Instamatic or Polaroids).

When I switched to digital I began my current collection which now suffers from my lack of time to organize it and digitally enhance or correct some images.  Even though I’ve got enough of my own shots to support this website (although I still waste time finding the right one) I’m always on the lookout for others’ helpful collections.  Voila.

Just this month The Center for Construction Research and Training (eLCOSH) added a free-of-charge image library to their already helpful website.  It provides high resolution, downloadable photos of hazards on construction sites.  Each photo has been fully described and the site is well organized and searchable by key words.  Find it at www.elcoshimages.org.

Be sure to read the “Use Policy” before you download.  Thanks, eLCOSH, and thanks to all the contributing photographers.

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Low Bid = High Risk?

Wednesday, January 6th, 2010

 

Forty feet up or more. (All photos by Jan Thomas)

Forty feet up or more. (All photos by Jan Thomas)

I’ve dipped into my photo collection to start out this year’s blogging.  It’s been several years since I took this series of pictures from a public street near Circle Safety’s Richmond offices. 

Look closely… Two guys, on an aluminum work board (not a two-point suspended scaffold), one with a hard hat and PFAS in use, the other getting a good suntan.  The horizontal white lines you see are ropes strung through small diameter PVC pipe, one on each side of the work board.  Acting or at least looking like guardrails?  Look closer and you’ll see more problems.

The biggest problem could be missed but I believe is the root cause of the observed hazards – these guys are working for the company that won the low bid to do cleaning and painting of this tower.  I don’t know for sure but I’ll bet they were required to provide their own equipment.

I want to say right now that although I do have my “hazard radar” turned on almost all the time, I very rarely make a referral of an unsafe condition to OSHA.  It has to be a true imminent danger situation which I believed this to be.

(In a later blog I would like to speak to the issue of a “duty to respond.”  I have spoken with many professions including enforcement officers, emergency responders and public officials who have admitted to the dilemma of not always knowing if they should ignore something or get involved.) 

It wasn’t my jobsite or my client, but on this day I decided that I had to save two lives.  I took the photos and contacted my local VOSH office. Within half an hour, these lucky workers were on the ground talking to a VOSH inspector. 

Rock climbing equipment attached to wire rope….

Rock climbing equipment attached to wire rope….

I say “lucky” because the photo below is a close-up of their sole anchor point. 

What do you think?

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That is NOT a Christmas Tree!

Friday, December 25th, 2009

Topping Turret  Oueally Hall 11-06-09 022How many of you know the origin of the ironworkers’ “Topping Out Ceremony”? 

I’ll bet most of the public and construction folks don’t realize that the tradition of putting an evergreen tree on the last big beam of steel being swung in place is a European custom handed down through the carpentry guilds from pre-Christian European times.  (Find out more by using search term: Topping Out).

Today, a Topping Out Ceremony will usually start with a party on the ground that includes the placement of the evergreen and the nation’s flag on the last large beam to be swung into place.  The beam is then signed in chalk or marker by the “dignitaries” and trade workers.   And, if the General Contractor is really in the know, he or she uses this opportunity to remind workers of the safe job they have done so far with an appeal for the same awareness as the structure continues into the next phases. 

Along with the blessing of the tree-spirits, I wish you a safe and prosperous new year.   Jan Thomas

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That Old Hard Hat Rule & A Few Exceptions

Monday, December 14th, 2009
Trim carpenter set up to work by himself with his hard hat parked at the door.  Hmm… Please don’t hang your hat on the switch wiring even though it’s not hot, and don’t run your cord across the metal door frame unless you protect it. (Photo: Jan Thomas)

Trim carpenter set up to work by himself with his hard hat parked at the door. Hmm… Please don’t hang your hat on the switch wiring even though it’s not hot, and don’t run your cord across the metal door frame unless you protect it. (Photo: Jan Thomas)

I keep a list of what I call “challenge questions.”  When I’m looking for a blog topic I can always find inspiration as well as frustration by looking at my list.  When I’m walking a construction site and encounter crews who have not worked with me before—and don’t already know my response, I’m often asked one of these questions.

Here is an example:  “So, I’ve always been told I don’t have to wear a hard hat if no one is working around me.  Why are you telling me different now?”

Those of you who have been reading my blog know my bottom-line answer to this and similar questions is – “Our company/site policy goes beyond OSHA standards.  In this case, our policy is to wear hard hats 100% of the time with only a few exceptions.”  It’s the part about “a few exceptions” that leads to long discussions, which I try to use as “teaching moments.”

I start by acknowledging that the main OSHA hard hat requirements are found in two places – General Industry’s §1910.135 & Construction’s §1926.100.  Both require employers to determine the need for PPE and sometimes this leads to the evaluation that there is no possible danger if a person is working alone, or in the cab of a well-protected piece of equipment, or under a cabinet fitting a fixture.  And, yes, OSHA said in 1983 that “where employees are not exposed to possible head injuries, head protection is not required by OSHA standards.”

Yet, typical hazards are not always anticipated, such as the hot electrical connection not seen yet touched by the worker’s head, or the rock that ricochets into the open window of the excavator’s cab, or the worker’s own dry wall hammer bouncing off a stud into his forehead.  Ouch.

Believe me, I’ve seen all of these happen more than once.  That’s why I try to convince my clients and all I contact in workplaces to wear their hardhats all the time (okay, except for maybe when they are sitting in the lunch trailer or in their car taking a nap).

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Protecting the Public in Proximity to Construction Sites

Friday, December 4th, 2009

A city block of construction with security fences and traffic control devices (Photo: Jan Thomas)

A city block of construction with security fences and traffic control devices (Photo: Jan Thomas)

We usually think about safety on construction sites with the focus on workers.  The federal or state OSHA jurisdiction on commercial construction begins where an employer-employee relationship exists.  In addition, CPL 2-0.124 –Multi-Employer Citation Policy dictates overall jobsite safety between contractors.  So, when we need some basic guidance on safety we grab the OSHA standards. 

But what about safety of the public – on adjoining streets or sidewalks, or across the fence in the school yard, or even across the intersection?  What about invited visitors on site?  OSHA is almost silent.

Some of the OSHA rules for protecting workers do secondarily protect the public.  For example, OSHA requires placarding of parked equipment, barricading of open trenches or the swing-radius of a crane, and using flaggers at traffic work zones. But these are few and indirect.

What may be needed is an actual plan for public safety, especially at sites where the public is ever present (city streets) or in high-risk areas (near schools).  Common sense may help guide such a plan but you may want to also check out a little-known consensus standard – ANSI/ASSE A10.34-2001 (R2005)  Protection of the Public on or Adjacent to Construction

Here is a quick review.  The public is defined as “All persons and property not affiliated with the construction project.  This includes invitees to the construction project who are not employed by the project constructor or contractors.” What about trespassers?  They are excluded from the definition of the public.  But, be sure to put up those No Trespasser signs to defend your property rights.

The consensus standard provides guidelines for developing a site-specific public hazard control plan and emergency action plan.  Fourteen specific hazards are identified and the standard’s appendix provides a checklist.  The consensus standard is fairly short but is a great place to start your thought process for extending safety beyond the boundaries of your construction site.

(Note: this was first posted on November 6, 2009 at the Construction Law Musings blog – see http://constructionlawva.com/.  My thanks to Chris Hill for continuing to invite me to provide guest posts).

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Looking a Little Closer at Laser Safety

Monday, November 23rd, 2009

Laser warning sign, laser safety glasses and safety instructions – all rare sights in the workplace. (Photo: Jan Thomas)

Laser warning sign, laser safety glasses and safety instructions – all rare sights in the workplace. (Photo: Jan Thomas)

Lasers are taking over! They are incorporated into kid and pet toys and will probably be a very popular holiday season gift for the DIY tool collector. Their presence in the industrial and construction worksites has been growing too. But, I believe workplace safety awareness has actually decreased as laser use has become more common place.

Lasers used to be a rare sight on construction sites. When they were used, a warning sign was often posted. The user was sometimes “certified” by the manufacturer. Other workers stayed out of the posted area. The laser safety glasses were in the carrying case although hardly ever used. And, no one really knew much about the potential dangers other than “you shouldn’t look into the beam.”

Most of these conditions have remained the same except that I now see more lasers in use, no warning signs, and a lack of training or qualification to use. But, the OSHA laser standard remains the same and requires all of this – see 29 CFR 1926.54.

Typical leveling lasers seen on construction sites today are rated at less than 1mW and therefore fall into a Class II category as per the Laser Hazards- Section III: Chapter 6 of the OSHA Technical Manual.

Quoting from it “CLASS II: low power visible lasers which emit above Class I levels but emitting a radiant power not above 1 mW. The concept is that the human aversion reaction to bright light will protect a person.” The referenced “human aversion reaction” is a fancy way to say “eye blinking.”

So, bottom line…. We want the laser operator trained with documentation. The user is to post a notice telling us what Class laser is in use. All employees in the area need laser safety awareness training. And, what about those weird red glasses? If the equipment is Class III or IV then we will probably need special laser eye protection depending upon the exposure. BUT, if it is Class I or II – everyday construction laser – then all we need to do is be aware a laser is in use and not try to out stare it.

By the way, I’ve not referenced OSHA’s Technical Manual on this blog before – it’s the official go-to guide for the OSHA compliance officers and therefore is of use to us.

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When is a Prefabricated Scaffold Frame Also an Access Ladder

Monday, November 9th, 2009
Masons need safe access and a few other things too. Photo: Jan Thomas

Masons need safe access and a few other things too. Photo: Jan Thomas

When is a Prefabricated Scaffold Frame Also an Access Ladder?

I’ve been in the safety profession long enough to remember how we used to do it 30 years ago.  And yes, we used to climb those end-frames that look like ladders.  Heck, the more agile workers climbed the cross-bracing (and some still do).

If we follow OSHA’s 1926.451(e)(6) or the less informative OSHA 1910.28(a)(2), we know that we need prefabricated scaffold access frames that have evenly spaced rungs at least 8 inches wide and not more than 16 3/4 inches tall from one rung to the next.  Where in the world do they get these dimensions from?!  ANSI standards, of course, but there is one other body of knowledge guiding us in this example.

A normal ladder has rung spacing at 12 inches on center, a rung width from 15 to 20 inches, and a tread thickness of 1 3/8.  These numbers represent our “cultural expectations” (that’s a fancy ergonomics principle).  Cultural expectations should be followed as close as possible on workplace equipment that may compromise safety, such as a ladder substitution.

Test yourself on the following examples of prefabricated scaffold frames.

CropperCapture[32]

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What will they think of next?

Friday, October 30th, 2009
Jobsite trying to do the right thing by getting electrical power in early.  (Photo: Jan Thomas)

Jobsite trying to do the right thing by getting electrical power in early. (Photo: Jan Thomas)

Sometimes you just have to stand back and see the humor in a situation.  Laugh a little and then go talk to someone about the dangers.  In this case, the GC asked the electrical contractor to provide the main panel and some GFCI outlets early in the job (that’s good).  The concrete guys hadn’t gotten there yet, but were on their way (that’s typical).  What to do with the panel box set on the ground already wired and running the temporary lights?  Here is one solution – not so typical.

After checking out the unusual suspension system, I found that there was no strain on the actual wiring although the height of the service entrance cable and its installation needed to be improved.  The ladder access to reach the main breaker might be a little short but that depended upon who was using the ladder.  Framing and other construction exposures were going to be a little tricky around this whole installation.

The pad got laid and cured, the electricians came back and reset the panel, the superintendent was asked not to be so creative next time, and I got a funny picture.

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Ban the Wire!

Tuesday, October 20th, 2009
Good example of “gambling with wire” while stringing up temporary lights (Photo: Jan Thomas).

Good example of “gambling with wire” while stringing up temporary lights (Photo: Jan Thomas).

 

While teaching electrical safety in our OSHA 10/30 classes I like to throw out the question “Who thinks putting metal and potentially exposed electrical together is a good idea?”  On all worksites I’ve seen a slow evolution to the use of nonconductive tools and equipment.  For example, the replacement of metal ladders for fiberglass, the repair of extension cords with molded plastic replacement plugs, the use of plastic cages on temporary light strings instead of metal guards.  All good, but in today’s photo we have short lengths of wire being used to hang the sting lights.

Is this a problem?  The string lights are from a reputable manufacturer.  Built-in molded plastic hanger eyes are provided.  But, check the manufacturers’ literature- the plastic hanger eye is provided for use with “messenger cable or hooks.”    Messenger cable???  Why bother with that when we can just hang the lamps using some bits of wire?

Look closely – this is not a usual case – the lamp assembly is pulled over and tied off to a metal stud with a spare length of wire pointing into the aisle, ready to catch a worker or hit the bulb. Then there is a small twist of wire being used to lock the clam shell type cage.  Why is wire being used when plastic zip ties and bits of string are readily available in the workplace?

The installation shown above might pass OSHA inspection since the wire is passing through the manufacturer’s establish plastic eye (reference OSHA 1926.405(a)(2)(ii)(F) Temporary lights shall not be suspended by their electric cords unless cords and light are designed for this means of suspension).

My suggestions – stop arguing about OSHA compliance.  Instead, fool proof everyone’s safety by setting up a worksite rule that says “ NO wires” when setting up temporary lighting or extension cords,  that keeps everyone from making a random mistake that could lead to electrical shock.

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Researching the “Parapet Rule”

Monday, October 5th, 2009
Great example of guarding the parapet edge when its dimensions don’t add up to the “parapet rule.”  And, note the professional carpentry!  This is a Taylor & Parrish job where the guardrails are always the best. (Photo: Jan Thomas)

Great example of guarding the parapet edge when its dimensions don’t add up to the “parapet rule.” And, note the professional carpentry! This is a Taylor & Parrish job where the guardrails are always the best. (Photo: Jan Thomas)

I think all professionals have a tendency to pass-on answers based upon “rules” they have been told about but have not researched for themselves.  Such is the case with a “flat roof/parapet height rule” I was told to use back in my OSHA compliance days (hint – it’s not in the OSHA standards).

Yet, when I started consulting, I also started to check my advice to clients, being ready to pull out the necessary documents supporting my statements.  It’s so much easier to do this today with a robust internet but still some of the provenances of these “rules” are obscure.  And, not only are they hard to trace but many are not regulatory rules, only guidelines.  For example, if you have a flat roof with a parapet that is at least 30 inches tall and at least 18 inches wide, you may have sufficient protection, if you have limited exposure.  I added the part about limited exposure as I’m not truly comfortable with this “parapet rule.”

I believe this formula started as an architectural guideline.  Fall protection expert Dr. Nigel Ellis has discussed the parapet solution through all 3 editions of his Introduction to Fall Protection book (1988, 1993, 2001).  On May 2, 2003, OSHA published a proposed rule change for Subparts D and I of 29CFR1910.  At proposed Appendix A –  Fall Protection Systems,   you will find the following schematic with formula: 

parapet rule

I emailed Dr. Ellis recently to see if he still used this 30-inch + 18-inch rule – he calls it a flopguard.  He advocates that we all start using a 45-inch minimum high guardrail system – people around the world are getting taller!   Thanks, Dr. Ellis. It is great being able to converse with an expert.

So, to wrap up this blog, I want to say that I really do enjoy researching these fine points for our clients and I’ve got a list of them – almost all of which will make great future blog topics!  If you have an obscure “rule,” let me know and I’ll add it to the list!

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Please Note: Analysis and opinions expressed are specific to the current discussion only. Different facts, changes in standards and codes, or other circumstances may lead to different results.