Overnight parking with Hazmat load

Interesting. That's not an FMCSA regulation. It's an OSHA regulation.

Here is their definition of "explosive" which would seem to include fireworks. FMCSA classifies fireworks as class 1.4 and doesn't regulate them as strictly - no safe haven or team driver requirements. OSHA doesn't appear to make a distinction. Although, they do fudge a little bit with the use of the phrase "certain types".

§ 1926.91(n)
(1) Any chemical compound, mixture, or device, the primary or common purpose of which is to function by explosion; that is, with substantially instantaneous release of gas and heat, unless such compound, mixture or device is otherwise specifically classified by the U.S. Department of Transportation.

(2) All material which is classified as Class A, Class B, and Class C Explosives by the U.S. Department of Transportation.

(3) Classification of explosives by the U.S. Department of Transportation is as follows:

Class A Explosives.
Possessing detonating hazard, such as dynamite, nitroglycerin, picric acid, lead azide, fulminate of mercury, black powder, blasting caps, and detonating primers.

Class B Explosives.
Possessing flammable hazard, such as propellant explosives, including some smokeles.

Class C Explosives.
Include certain types of manufactured articles which contain Class A or Class B explosives, or both, as components, but in restricted quantities.

 

Again I bring up Marshalls Creek , Pa. and unattended explosive truck.
You do the search on Google - and this was the result.
I lived 20 miles away and you could hear it.

 

Dang. I just now read about it. Wow.

One article said that the trailer was marked on all sides with explosives signs when it left the plant, and that two explosives warning signs were found in the cab of the destroyed tractor. I got the impression the driver had removed them from the trailer? Just wow.

It left a crater 40 X 60 X 12 feet.

 

Brake fire.
Two schools of thought; he was going to extinguish himself,
and took the signs off so as not to alarm anyone.
But then it engulfed the tires and it was all over, and he got clear.
Too late to put the signs back on - and the fire dept. arrived.

 

The article that I read said that he had uncoupled and left the scene to go back down the road a few miles to a gas station or something to call it in. The driver claimed that the tires were flat but not burning.

 

so took the signs off was the first mistake.
A) - Left to call- or after trying to get it put out - or
B) - left to get outta Dodge before SHTF.
Don't know why the first thing important in his mind was remove signage?
Pix of the front Grille of first fire truck on scene says it all.
Tremendously powerful explosion.

 

Unclassified and free for Public Release of about 1961 or so.

It is a little dry reading for some and somewhat more difficult for those used to twitter and the like.

After completion of this Material and a combination of several other similar materials you will be able to at some point reach a ball park amount on what it takes to make a hole.

You have been warned, it is dry reading in places. Grab a drink. You will learn that it's quite the bomb, He he.

http://www.dtic.mil/dtic/tr/fulltext/u2/263170.pdf

 

Good stuff there; X1HEAVY, but not everyone appreciates test data and analysis.
From the Marshalls Creek, Pa. 1960's blast (If you haven't - Google it) we have:
We have the bill of lading listing explosive type, quantity, and weight.
We have the height above the road; it was on a truck.
We have the diameter and depth of crater, and on the graphic curve
of soil types, this would be blacktop covered roadbed.
40X60X12 deep is one huge blast crater.

I found it interesting the TNT charges with a slower velocity than C-4 made more damage.

 

Incorrect. I hauled the stuff for 5 years mostly solo. I’ve violated hours of service many times since you’re kind of screwed in certain circumstances. A person is never supposed to leave a vehicle placarded with 1.1, 1.2, or 1.3. Therefore you cannot be off duty while loaded. Have to use the bathroom? According to the regulations you’re SOL. The DOT would like you to #### in a bucket rather than use the restroom. You can park in a truck stop so long as you aren’t by a bridge, within a certain distance of the road, or an inhabited building. We had some nutsack call to tattle on a driver because he smashed a finger on a door, and went to use the truckstop bathroom to clean up the blood.

One time I did have a co-pilot at a job site. We started out at 7am, and got back to the magazines at 4am. Carrying 1.1D, and 1.4B. We were both on duty all day since the truck had no sleeper, and the job required both of us working all day. The blown tire at the mine site set us back a good two hours. We were even on e-logs at the time. The explosives couldn’t be stored overnight, and we have no “safe havens” out here. What is a person to do in that situation? Get a new job was my answer. The pay wasn’t near high enough to be hanging my ### out on the line like that all the time.

 

They all are, eventually.