Currency:

The paper and ink used in the production of U.S. paper currency is as distinct as its design.  The paper comes to the BEP in brown paper-wrapped loads of 20,000 sheets (2 pallets of 10,000 sheets).  Each of these sheets is tracked by the BEP as it passes through the production process.   And, the total inventory of 20,000 sheets is continually reconciled to make sure each sheet is accounted for.  Currency paper is specifically made for the BEP by Crane Paper Company.  The ordinary paper that consumers use throughout their everyday life such as newspapers, books, cereal boxes, etc, is primarily made of wood pulp; however, United States currency paper is composed of 75% cotton and 25% linen.  This is what gives United States currency its distinct look and feel.  For denominations of $5 and above, the security thread, and watermark are already built into the paper when it is received.
 
All bills, regardless of denomination, utilize green ink on the backs.  Faces, on the other hand, use black ink, color-shifting ink in the lower right hand corner for the $10 denominations and higher, and metallic ink for the freedom icons on redesigned $10, $20, and $50 bills.   The $100 note's "bell in the inkwell" freedom icon uses color-shifting ink.  These and the other inks appearing on U.S. currency are specially formulated and blended by the BEP.  Inks headed for BEP presses also undergo continual quality testing.

You are not allowed to view links. Register or Login

If Cooper no-pulled, plunged into the Columbia a few feet on the outside of the channel (5-10 ft depth), how far would/could he have gone into the mud at the bottom?  Could he have gone far enough in to be stuck in the muck along with the money?   

I can only speculate here. as Ross has pointed out a body is almost weightless underwater, so it's hard to tell where he could end up. he could of been stuck in place, his body could of been snagged on something, but things would slowly separate from the body. clothing would slowly degrade, the money could become loose and leave it's original spot on the body. since we have no known point of contact with the river it's hard to say where the starting point would be.

You ever jump off a rope swing when water level kind of low?  Sometimes your feet will go a few inches into the mud... and your'e only going what....5mph?  So I was just curious as to how far one would go into the mud layer (I know... that's not a scientific term) if one was going over 100 mph.

You are not allowed to view links. Register or Login

You are not allowed to view links. Register or Login

If Cooper no-pulled, plunged into the Columbia a few feet on the outside of the channel (5-10 ft depth), how far would/could he have gone into the mud at the bottom?  Could he have gone far enough in to be stuck in the muck along with the money?   

I can only speculate here. as Ross has pointed out a body is almost weightless underwater, so it's hard to tell where he could end up. he could of been stuck in place, his body could of been snagged on something, but things would slowly separate from the body. clothing would slowly degrade, the money could become loose and leave it's original spot on the body. since we have no known point of contact with the river it's hard to say where the starting point would be.

River bottoms, especially large river bottoms like the Columbia with a huge amounts of water flow are very dynamic areas.  Sand bars form and move, holes are created by water flow around obstacles like trees and then filled in when the obstacle moves.  There are back waters and and the changing volume (depth) of water has a substantial affect on the river bottom topography. 

It is possible for an item like the money bag or a body to become covered or submerged in silt or mud on the bottom of a river like the Columbia in a short amount of time, regardless of the depth.  Theoretically, the money bag and even a body could have tumbled along the bottom until it was snagged by a log or other obstacle or fell into a "hole" (we've all heard of fishing holes) out of the flow of water and was covered by silt, sand and dirt particles that met the same fate (fell into a hole with limited water flow).