The fact that truck and trailer designs can potentially allow underride when there are collisions with passenger vehicles has a long history of being misunderstood. With that in mind, we recently sent letters to two lists of “100 top carriers” in North America via Certified Mail.
We wanted to make sure that their Boards and CEOs received information about the availability of engineering solutions which can modify those designs in order to prevent deadly underride and passenger compartment intrusion.
Here are Instructions for Searching Certified Mail Project Folders to retrieve the 200 Letters, Certified Mail Receipts, and Delivery Receipts. You will also find instructions there for retrieving additional letters to trucking companies and trailer manufacturers which were mailed in 2014, 2016, 2017, 2018, 2019, and 2024.
UPDATE March 13, 2026: Hundreds of people die every year when pedestrians, cyclists, motorcyclists, and occupants of passenger vehicles go under trucks. Please consider joining a STOP Underrides National Town Hall via Zoom April 15 | 8 – 9 pm ET |RSVP HERE.
Your voice at this unique advocacy gathering will let your U.S. Senators and Representative know that you want them to pass the STOP Underrides Act of 2026.
The crash on U.S. Highway 84 near Louisiana Highway 481 claimed the life of 42-year-old Jason Sant of Mansfield. . .
For reasons still under investigation, Sant crossed a double yellow line and traveled into the opposing lane of travel, which resulted in a collision with the tractor-trailer.
Seatbelts, airbags, and car crumple zones do not function as intended in underride crashes — leaving passenger vehicle occupants vulnerable to life-threatening injuries.
Jason Sant, Precious One Gone Too Soon
See underride tragedies at Underride Crash Memorials and #STOPunderrides. To add photos or more information on this story or to add other underride crashes to be remembered, send an email to underridemap@gmail.com. Please use this Interactive Underride Crash Map Crash Location Input Form to provide us with accurate information . (Note: the map is currently not online; but we would keep the information for future updating and to aid in underride advocacy efforts.)
Note: In order to raise awareness and preserve the memories of underride victims — precious ones gone too soon — I have been writing memorial posts on what appear to me to be underride crashes. I am not a crash reconstructionist, and I do not have all the facts on these crashes; but underride should be investigated as a potential factor in truck crash injuries and deaths.
UPDATE March 13, 2026: Hundreds of people die every year when pedestrians, cyclists, motorcyclists, and occupants of passenger vehicles go under trucks. Please consider joining a STOP Underrides National Town Hall via Zoom April 15 | 8 – 9 pm ET |RSVP HERE.
Your voice at this unique advocacy gathering will let your U.S. Senators and Representative know that you want them to pass the STOP Underrides Act of 2026.
Troopers said the tractor trailer was slowing for traffic when a 2000 Toyota Echo hit the trailer from behind.
The Spartanburg County coroner’s office identified the man as Echol Lee Nix Jr.
Because the bottom of a truck is higher than the bumper of passenger vehicles, when there is a collision the smaller vehicle easily slides under the truck and the first point of impact is the windshield. Seatbelts, airbags, and car crumple zones do not function as intended in underride crashes — leaving passenger vehicle occupants vulnerable to life-threatening injuries.
Echol Lee Nix, Jr., Precious One Gone Too Soon
See underride tragedies at Underride Crash Memorials and #STOPunderrides. To add photos or more information on this story or to add other underride crashes to be remembered, send an email to underridemap@gmail.com. Please use this Interactive Underride Crash Map Crash Location Input Form to provide us with accurate information . (Note: the map is currently not online; but we would keep the information for future updating and to aid in underride advocacy efforts.)
Note: In order to raise awareness and preserve the memories of underride victims — precious ones gone too soon — I have been writing memorial posts on what appear to me to be underride crashes. I am not a crash reconstructionist, and I do not have all the facts on these crashes; but underride should be investigated as a potential factor in truck crash injuries and deaths.
UPDATE March 13, 2026: Hundreds of people die every year when pedestrians, cyclists, motorcyclists, and occupants of passenger vehicles go under trucks. Please consider joining a STOP Underrides National Town Hall via Zoom April 15 | 8 – 9 pm ET |RSVP HERE.
Your voice at this unique advocacy gathering will let your U.S. Senators and Representative know that you want them to pass the STOP Underrides Act of 2026.
, , , a tractor trailer suffered a tire blow out causing debris to scatter across the highway. Reacting to the debris, Lonkart’s vehicle broke hard and swerved left and then right before striking a Hyundai in front of him, police report. As a result,the Hyundai crashed into the tractor trailer and was dragged along the roadside before the tanker caught fire. The driver of the Hyundai was trapped inside and did not survive. No other injuries were reported.
Seatbelts, airbags, and car crumple zones do not function as intended in underride crashes — leaving passenger vehicle occupants vulnerable to life-threatening injuries.
Jared Marcum, Precious One Gone Too Soon
See underride tragedies at Underride Crash Memorials and #STOPunderrides. To add photos or more information on this story or to add other underride crashes to be remembered, send an email to underridemap@gmail.com. Please use this Interactive Underride Crash Map Crash Location Input Form to provide us with accurate information . (Note: the map is currently not online; but we would keep the information for future updating and to aid in underride advocacy efforts.)
Note: In order to raise awareness and preserve the memories of underride victims — precious ones gone too soon — I have been writing memorial posts on what appear to me to be underride crashes. I am not a crash reconstructionist, and I do not have all the facts on these crashes; but underride should be investigated as a potential factor in truck crash injuries and deaths.
UPDATE March 13, 2026: Hundreds of people die every year when pedestrians, cyclists, motorcyclists, and occupants of passenger vehicles go under trucks. Please consider joining a STOP Underrides National Town Hall via Zoom April 15 | 8 – 9 pm ET |RSVP HERE.
Your voice at this unique advocacy gathering will let your U.S. Senators and Representative know that you want them to pass the STOP Underrides Act of 2026.
Officials said 38-year-old Calvin Eugene Clopton of Pelham died early Saturday morning after his vehicle was struck from behind by a tractor-trailer on I-59 in Argo. Clopton’s vehicle became engulfed by flames after the collision.Pelham man killed in fiery crash on I-59 in Argo
Seatbelts, airbags, and car crumple zones do not function as intended in underride crashes — leaving passenger vehicle occupants vulnerable to life-threatening injuries.
Calvin Clopton, Precious One Gone Too Soon
See underride tragedies at Underride Crash Memorials and #STOPunderrides. To add photos or more information on this story or to add other underride crashes to be remembered, send an email to underridemap@gmail.com. Please use this Interactive Underride Crash Map Crash Location Input Form to provide us with accurate information . (Note: the map is currently not online; but we would keep the information for future updating and to aid in underride advocacy efforts.)
Note: In order to raise awareness and preserve the memories of underride victims — precious ones gone too soon — I have been writing memorial posts on what appear to me to be underride crashes. I am not a crash reconstructionist, and I do not have all the facts on these crashes; but underride should be investigated as a potential factor in truck crash injuries and deaths.
UPDATE March 13, 2026: Hundreds of people die every year when pedestrians, cyclists, motorcyclists, and occupants of passenger vehicles go under trucks. Please consider joining a STOP Underrides National Town Hall via Zoom April 15 | 8 – 9 pm ET |RSVP HERE.
Your voice at this unique advocacy gathering will let your U.S. Senators and Representative know that you want them to pass the STOP Underrides Act of 2026.
. . . a 2018 International box truck being driven by 37-year-old Kevin J. Porter II of Indianapolis failed to stop for the slowed traffic, police said.
Porter’s vehicle collided with the rear of tanker trailer. Police said both vehicles came to rest in the westbound lanes of I-74 after the collision.
Because the bottom of a truck is higher than the bumper of passenger vehicles, when there is a collision the smaller vehicle easily slides under the truck and the first point of impact is the windshield. Seatbelts, airbags, and car crumple zones do not function as intended in underride crashes — leaving passenger vehicle occupants vulnerable to life-threatening injuries .
Kevin Porter, Precious One Gone Too Soon
See underride tragedies at Underride Crash Memorials and #STOPunderrides. To add photos or more information on this story or to add other underride crashes to be remembered, send an email to underridemap@gmail.com. Please use this Interactive Underride Crash Map Crash Location Input Form to provide us with accurate information . (Note: the map is currently not online; but we would keep the information for future updating and to aid in underride advocacy efforts.)
Note: In order to raise awareness and preserve the memories of underride victims — precious ones gone too soon — I have been writing memorial posts on what appear to me to be underride crashes. I am not a crash reconstructionist, and I do not have all the facts on these crashes; but underride should be investigated as a potential factor in truck crash injuries and deaths.
UPDATE March 13, 2026: Hundreds of people die every year when pedestrians, cyclists, motorcyclists, and occupants of passenger vehicles go under trucks. Please consider joining a STOP Underrides National Town Hall via Zoom April 15 | 8 – 9 pm ET |RSVP HERE.
Your voice at this unique advocacy gathering will let your U.S. Senators and Representative know that you want them to pass the STOP Underrides Act of 2026.
According to state police reports, a 2011 Kenworth tractor-trailer, driven by 46-year-old Davinder Singh of Brampton, ON, was stopped in heavy traffic near the Williamsville tolls when a 2020 Honda Civic, driven by 26-year-old William Paul of Rochester, rear-ended it between Exit 49 (Depew) and Exit 50 (Williamsville).
Because the bottom of a truck is higher than the bumper of passenger vehicles, when there is a collision the smaller vehicle easily slides under the truck and the first point of impact is the windshield. Seatbelts, airbags, and car crumple zones do not function as intended in underride crashes — leaving passenger vehicle occupants vulnerable to life-threatening injuries
William Paul, Precious One Gone Too Soon
See underride tragedies at Underride Crash Memorials and #STOPunderrides. To add photos or more information on this story or to add other underride crashes to be remembered, send an email to underridemap@gmail.com. Please use this Interactive Underride Crash Map Crash Location Input Form to provide us with accurate information . (Note: the map is currently not online; but we would keep the information for future updating and to aid in underride advocacy efforts.)
Note: In order to raise awareness and preserve the memories of underride victims — precious ones gone too soon — I have been writing memorial posts on what appear to me to be underride crashes. I am not a crash reconstructionist, and I do not have all the facts on these crashes; but underride should be investigated as a potential factor in truck crash injuries and deaths.
UPDATE March 13, 2026: Hundreds of people die every year when pedestrians, cyclists, motorcyclists, and occupants of passenger vehicles go under trucks. Please consider joining a STOP Underrides National Town Hall via Zoom April 15 | 8 – 9 pm ET |RSVP HERE.
Your voice at this unique advocacy gathering will let your U.S. Senators and Representative know that you want them to pass the STOP Underrides Act of 2026.
Former Elk Grove mayoral candidate Joel Broussard, 39, was killed in a crash when a big rig collided into 10 vehicles on Interstate 5 in south Sacramento on Tuesday evening.
Because the bottom of a truck is higher than the bumper of passenger vehicles, when there is a collision the smaller vehicle easily slides under the truck and the first point of impact is the windshield. Seatbelts, airbags, and car crumple zones do not function as intended in underride crashes — leaving passenger vehicle occupants vulnerable to life-threatening injuries
Joel Broussard, Precious One Gone Too Soon
See underride tragedies at Underride Crash Memorials and #STOPunderrides. To add photos or more information on this story or to add other underride crashes to be remembered, send an email to underridemap@gmail.com. Please use this Interactive Underride Crash Map Crash Location Input Form to provide us with accurate information . (Note: the map is currently not online; but we would keep the information for future updating and to aid in underride advocacy efforts.)
Note: In order to raise awareness and preserve the memories of underride victims — precious ones gone too soon — I have been writing memorial posts on what appear to me to be underride crashes. I am not a crash reconstructionist, and I do not have all the facts on these crashes; but underride should be investigated as a potential factor in truck crash injuries and deaths.
This post provides basic underride information, as well as a running list of recent relevant posts.
Underride Crash Memorials These are posts in memory of a few of the thousands of underride victims. The tip of the iceberg of senseless, preventable deaths. I will slowly be adding more.
What will it take to get UNDERRIDE on DOT Regulatory Agenda? We’ve been waiting 52+ years for DOT to move forward with side guards on large trucks — not to mention improving rear guard regulations and adding front underride protection. After numerous petitions, comprehensive underride rulemaking still has not made it the onto the DOT Unified Regulatory Agenda.
Collaborative Discussion of Side Guard Challenges on Specialty TrucksI was very pleased with the collaborative discussion which took place via Zoom on Monday, March 29, 2021, regarding the challenges of adding side guard safety technology to specialty trucks. Participants included primarily engineers and small companies who have been working on researching, designing, and/or marketing solutions to the underride problem. The meeting was also quietly observed by families of underride victims and administrative officials from the Federal Motor Carrier Safety Administration (FMCSA).
The March Madness of Competing Traffic Safety InterestsWhat is it like to compete for the attention of government leaders in order to get traction on the traffic safety problem which took your loved one’s life? Envision a press conference on a hot topic where a cacophony of reporters can be heard shouting out — vying for the opportunity to have their question be the one that gets answered.
Time for a National Traffic Safety OmbudsmanAlmost five years ago, after delivering a Vision Zero Petition to leaders in Washington, D.C., I realized that we need something more than a White House Vision Zero Task Force and a National Vision Zero Goal. We need a National Traffic Safety Ombudsman to be at the helm of a nationwide network of community traffic safety advocates. Someone who will have a place at the federal table — with the authority to take ongoing action on behalf of vulnerable victims of vehicle violence.
Engineers, Trucking Industry, & Victim Advocates Collaborate at Side Guard Task Force On a Friday afternoon — February 26, 2021 — over 50 people met via Zoom to discuss comprehensive underride protection. The purpose of the meeting was to report on progress which has been made by several subcommittees since an earlier meeting in 2020 — including Industry Engagement, Research, and Engineering Subcommittees.
Should we be concerned about side guards getting hung up on railroad tracks?I keep hearing members of the trucking industry bring up the possibility of side guards on trailers getting hung-up on railroad tracks. They point to it as a reason to not require side guards on all new trucks. Is that a valid concern? And where is their documentation?
Transport Companies Provide Feedback on Side Guard Operational IssuesWe know that the trucking industry has expressed concern about potential operational issues which could occur when side guards are installed on large trucks. In order to address those concerns, we asked several trucking companies to give us feedback about their experience after installing side guards on their tractor-trailers.
Consensus Side Guard StandardOn April 17, 2020, over 40 people participated in a virtual meeting of a volunteer Underride Protection Committee’s “Side Guard Task Force.” This included two engineers from trailer manufacturers. As a follow-up, several subcommittees began to hold virtual meetings, including an Underride Engineering Subcommittee.
FMCSA Proposed Rule For Inspection of Rear Underride Guards A red letter day: The Federal Motor Carrier Safety Administration (FMCSA) at long last has proposed a rule to add rear underride guards to Appendix G. What does that mean? It means that rear underride guards will be required to be in good condition in order to pass an annual vehicle inspection. Once the rule is actually issued.
Retrofit Solutions for Rear Impact Guards to Prevent Deadly Underride It is to their credit that nine U.S. trailer manufacturers have improved their rear underride guard design to meet the IIHS TOUGHGuard standard and seven of them are putting it on all new trailers as Standard. What that means is that they have surpassed the current federal standard and have been crash tested to show that they are more likely to prevent underride and catastrophic Passenger Compartment Intrusion (PCI) — thereby more likely to save lives when passenger vehicles rear end tractor-trailers.
Save Lives by Lighting up Tractor-Trailers & Tanker TrucksTruck drivers can play an important role in making sure that the trailers which they haul are as visible as possible to other drivers on the road — especially at nighttime. On October 15, 2018, Leslie and Sophie Rosenberg lost their lives when they collided with the side of a tanker late at night.
Truck Driver Mistakes Don’t Excuse Industry & Government Negligence To Solve Underride ProblemThanksgiving Eve, another apparent underride victim lost her life: Though the truck driver may have made a mistake, not all the blame rests with him for a crash which might have had a different outcome with effective underride protection. Carriers, trailer manufacturers, DOT, & Congress can make these kinds of truck crashes more survivable.
A fully-guarded trailer hits the road – ready to STOP underride! Engineering ingenuity and a lot of hard work went into the research, development, and installation of this fully-guarded trailer system. This week, a small carrier in North Carolina became part of our pilot program. We are thankful that they have agreed to provide us feedback on this #SaferTruck as they drive it on the road to carry out their transport business.
On August 19, we hosted another Underride Staff Briefing — this time via Zoom. We are providing Congressional Offices with the PowerPoint pdf from that presentation, including comments from engineers with expertise in underride as well as underride families: Underride Briefing PowerPoint pdf (inc. links to resources & video)
Underride Crash Memorials These are posts in memory of a few of the thousands of underride victims. The tip of the iceberg of senseless, preventable deaths. I will slowly be adding more.
UPDATE March 13, 2026: Hundreds of people die every year when pedestrians, cyclists, motorcyclists, and occupants of passenger vehicles go under trucks. Please consider joining a STOP Underrides National Town Hall via Zoom April 15 | 8 – 9 pm ET |RSVP HERE.
Your voice at this unique advocacy gathering will let your U.S. Senators and Representative know that you want them to pass the STOP Underrides Act of 2026.
A woman who died in a crash Monday morning has been identified as a local college student.
Deputies said Allyson Davis, 21, of Banner, Kentucky died in the wreck. According to investigators, it happened on Interstate-75 near the 175 mile marker around 9:30 a.m.
According to deputies, Davis was driving northbound on I-75 when she lost control of her car after driving through water. Her vehicle then spun out of control, they said, and ended up lodged under a semi-truck’s trailer.Woman killed in Boone Co. crash identified as NKU musical theatre student
Because the bottom of a truck is higher than the bumper of passenger vehicles, when there is a collision the smaller vehicle easily slides under the truck and the first point of impact is the windshield. Seatbelts, airbags, and car crumple zones do not function as intended in underride crashes — leaving passenger vehicle occupants vulnerable to life-threatening injuries
Allyson Davis, Precious One Gone Too Soon
See underride tragedies at Underride Crash Memorials and #STOPunderrides. To add photos or more information on this story or to add other underride crashes to be remembered, send an email to underridemap@gmail.com. Please use this Interactive Underride Crash Map Crash Location Input Form to provide us with accurate information . (Note: the map is currently not online; but we would keep the information for future updating and to aid in underride advocacy efforts.)
Note: In order to raise awareness and preserve the memories of underride victims — precious ones gone too soon — I have been writing memorial posts on what appear to me to be underride crashes. I am not a crash reconstructionist, and I do not have all the facts on these crashes; but underride should be investigated as a potential factor in truck crash injuries and deaths.
