Forensic Engineers and Consultants


How a Central Indian Town Changed the United State Code of Federal Regulations

On December 3, 1984, at a pesticide ingredient manufacturing facility owned by Union Carbide, a leak occurred in the Methyl Isocyanate (MIC) plant. Due to the toxic nature of the gases released and the plant’s proximity to local residences, the death toll was in the thousands; both plant workers and nearby residents.  The first recorded public meeting in response to this incident was on December 9th, in Institute, WV, the site of Union Carbide’s only US MIC production unit.  Full disclosure: my father was a research & development chemist for Union Carbide and Institute is about 10 miles down the Kanawha River from my hometown of Charleston, WV. Read More

deck 2

Wood Deck Safety Check


Even though we are still in February, here in the South, Springtime weather is just around the corner. That means we’ll be looking around the house and making a priority list of spring-cleaning projects.  And, for many of us, giving our wood decks a good cleaning gets put at or near the top of the list.  That’s all well and good, however, we should take it a little further and put checking out how safe and secure are our wood decks, particularly those that are built several feet or more above grade. Read More


Water Damage from Leaking Shower Stalls


Have you ever had to have a leaking shower pan for a tiled shower stall replaced, only to have a recurrence a few years later? If so, it is likely that it was not properly built and/or repaired. In most installations, the shower stall is constructed with an underlying one-piece flexible membrane of PVC that is attached to the wall studs before the backer board and wall tile is installed. No nails or screws should penetrate the membrane below the level of the curb of the shower stall. The only opening in the membrane below the curb must be the hole for the shower drain to connect to the house plumbing. The shower drain is designed to allow water on top of the membrane to flow into the drain via weep holes for that purpose. Read More

Black box inside car

Event Data Recorders and Collision Investigation


Event Data Recorders (EDRs) were first introduced by General Motors (GM) in 1974.   That data was only available to GM; however, since 1994 more and more vehicle EDR’s have recorded data that can be gathered.  The data captured can be imaged and is being used by vehicle manufacturers, law enforcement officers, and collision reconstructionists to better understand what is happening in a collision.  In accident investigation, EDRs have the potential to provide independent measurements of crash data that would elsewise be estimated by Read More

Figure 1: A view from a vendor's website of a material known as engineered wood fiber that is designed for use as a playground surface.

Children Will Fall At Playgrounds. What Shall We Do To Protect Them? A Multipart Blog Series – Part II: A Brief Summary of Playground Safety Standards

Co-Authored with Aron Olson, PE   

Welcome to the second part in our multipart blog series examining a young boy’s fall and injury at a public playground. If you missed the first part in this series, click to read it. In this post, we will highlight some resources that designers of public playgrounds can use to help ensure their designs are reasonably safe. Read More


Reducing Property Damage and Injuries Via Near Miss Reporting


What is a near miss?  It’s an unplanned event that does not result in injury or property damage, but had the potential to do so.  We often call these events “close calls” or “narrow escapes.”  For example, a scaffold guardrail is missing, a worker backs up and as he starts losing his balance, he is able to grab hold of the scaffold buck and prevent the fall.  Other than a racing heartbeat for a few minutes, presumably, no harm, no foul. Read More

Figure 1: A typical warning found on a confined space.

Permit-Required Confined Spaces – What You Need to Know to Safely Enter (and Exit!)

According to the OSHA regulations, a confined space is anyplace that meets the following criteria:

(1)   Is large enough and so configured that an employee can bodily enter and perform assigned work; and
(2)  Has limited or restricted means for entry or exit; and
(3)  Is not designed for continuous employee occupancy. Read More

Dan Olson presenting his Collision Course to a local insurance group.

Warren Announces the Retirement of Dan Olson

With both pleasure and regret, Warren announces the retirement of Dan Olson. Dan has been a consulting engineer at Warren since its founding 20 years ago and has been a leader in the development of Warren and its culture from the onset. Read More


Children Will Fall At Playgrounds. What Shall We Do To Protect Them? A Multipart Blog Series – Part I

Co-Authored with Aron Olson, PE   

In 2011, a 5-year old boy was severely injured at a public playground when he fell through a second floor opening around a fireman’s pole in a playhouse. He fell more than seven feet and struck a bare concrete floor. We are thankful that he eventually recovered from his injuries. The person who designed and built the playground was accused of negligence. A lawsuit ensued, and eventually settled in favor of the boy. Read More


Warren Welcomes Dave Looney, Senior Construction Consultant

Warren is pleased to announce the addition of W. Dave Looney, as a Senior Construction Consultant. Dave has more than 40 years of experience in building construction and construction project management.  He has managed projects ranging from wood-framed condominiums to state of the art manufacturing facilities. Read More

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