A Semi Breaks Down on I-93: What Happens From the Moment You Call to the Moment It’s Back on the Road

It happens fast. One minute a truck driver is cruising down I-93 outside Concord, making good time on a delivery run. The next, a warning light flicks on, the engine loses power, and 40,000 pounds of loaded tractor-trailer is decelerating on a busy highway with nowhere good to stop.

What happens next — from the moment the driver picks up the phone to the moment the rig is safely off the road and on its way to a repair facility — is a process most people never see. It’s not as simple as hooking up a chain and driving away. A heavy-duty breakdown on a live highway involves a specific sequence of decisions, equipment deployments, and safety protocols that determine whether the recovery goes smoothly or turns into a longer, more costly ordeal.

Here’s a step-by-step look at what a real heavy-duty semi breakdown on I-93 actually looks like from start to finish.

The Call Comes In

The process starts the moment the driver calls for help. For a heavy-duty breakdown, the information shared in that first call matters more than most drivers realize. A good dispatcher isn’t just taking down a location — they’re gathering everything needed to send the right equipment on the first dispatch:

• Exact location — mile marker, direction of travel, nearest exit or landmark
• Vehicle type and configuration — single axle, tandem axle, whether a trailer is attached and how it’s coupled
• Load status — empty or loaded, and if loaded, what kind of cargo (dry goods, liquid, hazmat, oversized)
• Nature of the breakdown — mechanical failure, blowout, accident, stuck, or something else
• Position of the vehicle — fully on the shoulder, partially blocking a lane, or in a more dangerous position

All of this shapes which truck gets dispatched, what rigging comes along, and how the crew prepares on the way to the scene. Sending the wrong equipment because the call was vague isn’t just an inconvenience — it means a second dispatch, more time on the shoulder, and more exposure to highway traffic for the driver.

At Musk Heavy Duty Towing, when that call comes in at 2 AM or 2 PM, the technician answering is already awake, alert, and running through exactly these questions while the dispatch is being prepared.

En Route: Preparing Before Arriving on Scene

While the heavy-duty wrecker is moving toward the breakdown location, the crew is already thinking through the job. Based on what the driver reported, the technician is mentally mapping out:

• Which rigging configuration is most likely needed based on vehicle type and load
• Whether a single truck will be sufficient or whether backup equipment may need to be called
• Road conditions and weather — particularly important on I-93 in winter months when ice, reduced visibility, and limited shoulder traction change the entire approach
• Time of day and traffic volume, which affects how much working space will realistically be available when they arrive

This preparation time matters because arriving on a live highway scene without a clear plan wastes critical minutes — and every extra minute a disabled semi sits on a highway shoulder is a safety risk for the driver, other motorists, and the recovery crew.

Arriving on Scene: Safety Before Everything

The first thing the recovery crew does when they arrive is not attach a hook. It’s establish safety.

A disabled semi on I-93 is an active hazard. Traffic is moving at highway speeds, sight lines around a large vehicle are limited, and drivers approaching the scene often don’t slow down as much as they should. The crew’s first priority is getting cones, flares, and directional warning equipment set up behind and around the disabled vehicle to create a safe working perimeter.

Law enforcement is often already present on highway breakdowns, particularly if the vehicle is partially blocking a travel lane. If they are, the recovery crew coordinates with them on lane closures, traffic direction, and how much room is available to work. If they aren’t, the recovery crew establishes their own perimeter and may request law enforcement support depending on the severity of the situation.

Only once the scene is secured does the technical work begin.

Assessing the Vehicle and Planning the Recovery

With the scene safe, the technician does a full walk-around of the disabled vehicle before a single piece of rigging goes on. This assessment covers:

• Structural condition — is the frame, coupling, or any axle damaged in a way that changes how the vehicle can be safely moved?
• Tire condition — are any tires blown or seized in a way that affects whether the vehicle can roll safely during recovery?
• Brake status — are the trailer brakes locked or functioning? A trailer with locked brakes behaves very differently during a pull than one that rolls freely
• Load condition — for a loaded trailer, is the cargo secure and evenly distributed, or has something shifted that needs to be addressed before transport?
• Ground conditions — is the shoulder soft, gravel, or iced over in a way that affects how the recovery vehicle can position itself?

This is the step that takes more time than drivers or dispatchers sometimes expect, and it’s the step that can’t be rushed. A thorough assessment at this stage is what prevents a recovery from causing additional damage to the vehicle — or worse, to the crew.

Rigging Up: Matching Equipment to the Situation

With the assessment complete, the technician selects the rigging configuration and positions the wrecker. For a standard semi breakdown on I-93 — engine failure, blown tire, or similar mechanical issue where the vehicle is still structurally intact — the most common approach involves:

• Positioning the heavy wrecker directly in front of or behind the disabled rig depending on which end needs to be lifted or supported
• Attaching rigging at rated recovery points — specific locations on the frame engineered to handle towing loads — rather than improvised attachment points that can crack, bend, or fail under the weight
• For a tractor-trailer where the trailer is still attached and the cargo is secure, the crew determines whether to tow the full combination or separate the trailer for individual transport

If the trailer needs to be separated — either because it’s too heavy to tow in combination, or because it’s safer to handle the tractor and trailer as separate loads — that process itself requires careful unhooking, stabilizing the trailer on its landing gear, and ensuring it’s secure before the tractor is moved.

The Move: Controlled, Not Fast

Once the rigging is set and everything is confirmed, the actual move begins. For a highway recovery, this is done carefully and deliberately — not quickly. The technician monitors:

• Rigging tension as the load comes onto the equipment
• Whether the disabled vehicle is tracking correctly as it’s lifted or towed
• Traffic behind the operation, coordinating with law enforcement or flaggers to maintain safe clearance
• Any changes in the vehicle’s behavior that suggest a rigging point needs adjustment

For a tow to a nearby repair facility or a safe staging area, the driver of the disabled rig typically rides in the recovery truck cab rather than remaining in the disabled vehicle during transport — standard safety practice for a heavy tow.

Clearing the Scene

Once the disabled vehicle is loaded, secured, and moving, the recovery crew clears their equipment from the scene — cones, flares, warning boards — and confirms with law enforcement that the area is clear before full traffic flow resumes.

If any fluids leaked from the disabled vehicle during the breakdown or the recovery, that gets communicated to the appropriate parties. Diesel, coolant, or hydraulic fluid on a highway surface is a secondary hazard for other drivers, and clearing the vehicle is only half of scene clearance.

Delivery to a Repair Facility or Staging Area

The final leg of the job is transporting the rig to wherever it needs to go — a repair shop, a fleet yard, or a temporary staging area if it’s outside of business hours and the destination isn’t open yet. For long-haul trucks, this may mean coordinating with the driver’s dispatch or fleet manager on the destination, since the truck may need to go to a specific authorized facility.

The cargo, if the trailer is loaded, may also need to be addressed — either transferred to a replacement trailer so the delivery can continue, or stored securely until the original trailer is repaired. That coordination typically happens between the fleet and their logistics team, but a towing partner who communicates clearly throughout the process makes it significantly easier.

What Makes a Heavy-Duty Breakdown Go Smoothly

Looking at the full sequence — from the call to the scene to the delivery — the difference between a recovery that takes two hours and one that takes five usually comes down to a handful of factors:

• The quality of information shared on the first call, which determines whether the right equipment arrives the first time
• Scene safety setup, which protects the crew and creates enough working space to do the job correctly
• Thoroughness of the vehicle assessment, which prevents mid-recovery surprises
• Rigging precision, which keeps the vehicle intact during the move
• Clear communication with law enforcement, the driver, and the fleet dispatcher throughout the process

None of these steps are complicated in isolation. Together, done in the right sequence with the right equipment, they’re what separates a recovery that goes smoothly from one that becomes a much longer, more expensive day for everyone involved.

Heavy-Duty Semi Towing and Recovery in Concord, NH

At Musk Heavy Duty Towing, this is the process we bring to every heavy-duty call — whether it’s a routine mechanical breakdown on I-93 or a more complex situation involving cargo, terrain, or accident damage. We run 24/7 dispatch out of Concord, NH 03301, with live technicians ready to roll with the right equipment for the specific situation, not a one-size-fits-all truck hoping it works out.

Semi down on I-93 or anywhere in the greater Concord area? Call (603) 696-4734 immediately. Tell us exactly what you’re working with — vehicle type, load status, location — and we’ll have the right equipment moving toward you right away.