I spent a decade of my career in the design engineering sphere. I loved my experiences there, and working in design has given me an understanding of how structures and their various elements are dreamed, designed, and constructed- how they ought to work as well as what can go wrong. Design is fun and can be complicated, and it does not need to be a big scary mystery. Let’s have a peek behind the curtain! (more…)
Construction defect investigations rarely fit neatly into a single engineering discipline. A water intrusion issue may involve the building envelope, roofing, windows, structural components, or mechanical systems. A failure that appears structural may have its origins in design, installation, materials, or an adjacent building system. And when plumbing, HVAC, electrical, or equipment issues enter the picture, understanding the interaction between systems can be critical to determining what happened and why. (more…)
I love spending time at the beach. Just this last weekend I drove by four fellows on extension ladders trimming palm trees with chainsaws on the side of the street.
Image of a worker performing ad hoc tree work without appropriate safety considerations. Of particular concern, his ladder is at an acute angle that puts undue strain on the frame and the worker has no secondary restraints to prevent him from falling off the ladder. Ladder falls are the most common injuries in the arboricultural industry.
Of course, anyone who knows me knows that one thing I like almost as much as the beach is talking about ANSI, OSHA and (more…)
An 8-year-old girl was playing at a playground with her family. The playground was about a year old and very popular. While on the monkey bars about 7 feet up in the air, the child lost her grip and fell to the surrounding loose-fill material engineered wood fiber surface below. She hit her head and sustained (more…)
Please join us in welcoming Structural Engineer Claire Benedict, P.E., to the WARREN family! Claire has over 10 years of engineering experience in the civil/structural field specializing in building design, building components, and foundation systems analysis. Claire earned her Bachelor of Science in Civil Engineering from Purdue University. (more…)
According to the CDC, nearly 70% of all playground injuries are caused by falls to the ground. This makes the choice and maintenance of surfacing materials one of the most important factors in preventing playground injuries. All playground surfacing material has a Critical Fall Height (CFH) that determines how much impact it can safely absorb. The Critical Fall Height is the safety threshold for playground surfacing and must always be equal to or greater than the surrounding playground equipment’s actual fall height to be considered safe. For example, (more…)
This article is based on my experience investigating and analyzing slip-and-fall incidents involving pedestrian walking surfaces. One type of slip and fall incident involves slipping on wet floor surfaces shortly after entering a building or stepping onto hard-surface flooring.
Common flooring materials involved include polished concrete, vinyl composite tile, porcelain tile, and wood flooring. These surfaces are generally safe when dry but present increased slip risk when contaminated. Matting is often used as a method to minimize the slip risk but is frequently ineffective because of improper usage. (more…)
Grilling outdoor during warmer months is a great way to bring people together, so long as users remember they are literally playing with fire.
Spring weather is wonderful in the south. It’s been a year since I moved and got rid of most of the things we never used in the garage. Now I’m perseverating over which grill to buy so my fiancé and I can finally make grilled turkey legs and stir-fry vegetables while watching the neighbor kids play tag between houses. Despite my pale bald head that sunburns almost instantly, I feel the need for some fresh evening air. Very little makes the afternoon better than sitting in a metal chair and joking about the neighbor’s gazebo plans while you casually take food off the grill.
I have to be honest – I sort of fear the back yard. There are gnats, neighbors with all manner of projectiles (frisbees, basketballs, volleyballs and even footballs have flown past me when all the neighborhood kids are running around!), and all the dust that my edger kicks up. But the social energy of such an active development is why I moved there. It seems a waste to eat dinner on nights like these. After all, a backyard barbecue is the highlight of summer.
But managing fire is one of the most dangerous things you can do in flip-flops. (more…)
Slip and falls occur when there is an unexpected loss of traction between a person’s foot and the walking surface, causing them to lose balance and fall. This type of injury is common and can occur in any setting where people walk, including homes, workplaces, and public areas. Slips can result in serious injuries, particularly for older adults.
The human gait cycle consists of four phases: the (more…)
“What’s up man, you want to hit up the Longbranch tonight?Cool, I’ll get up with you later.” Ronnie ends the call and heads out on a beer run. After the last sip of Gin, Stan finishes up one of his many fan letters, drops it in the box, and starts to get ready for the night. “What’s good?” It was Ronnie’s cousin Squirrel on the line. “You okay with Stan going tonight?” “Yeah,” Squirrel says, “he’s got a sweet ride… we’ll let him drive! He let me drive that GT all last week, that thing is hot!” “Sounds like a plan! Let me go dude, bout to head in and get some cold beer.”
“911, what’s the nature of your emergency?“
“Yes, there is an overturned car, looks like maybe a Mustang, a red Mustang. I’m just off Highway 9. It’s down an embankment…I can see two people laying on the ground and one person still in the car. The two people on the ground are moving, but the one in the car looks bad!”
“Police and EMS are on the way ma’am.“
“Okay, I have my emergency flashers on, can you stay on the phone with me until they get here… it’s really dark and cold. I’m scared.”
“I’m here ma’am, try to calm down. Can you give me a description of the people involved, maybe what they’re wearing?“
“The one that’s lying near the car is wearing red jeans with a white T-shirt, and it looks like he has a black and green high-top sneaker on his left foot only, just a sock on the other. The other one out of the car has regular blue jeans on, and a green shirt with boots. It’s hard for me to see the guy in the car… looks like he has on jeans and some kind of black concert T-shit, I can see tour dates and make out the word “Shady”. Hey, the police are here, so I’ll hang up now.”
A lot is at stake here and we have quite a dilemma, three occupants involved in a single vehicle crash with one fatality and no idea who the driver is. The stakes begin to rise immediately, at the scene of the crash. What’s documented or not documented will affect the outcome of this case. It will affect the outcome of this case when everyone has gathered with suit and tie, when hands are placed on the Bible, and the truth is sworn to be told.
We’ve talked about proper collision scene documentation several times, but this time let’s talk about a few ways we can build a case like this and possibly identify beyond a reasonable doubt who was driving at the time of the wreck. (more…)