Where is gold deposited downstream of abandoned bridge support/pier?

Old Dirtbag

Jr. Member
Dec 23, 2015
28
8
South
Detector(s) used
MXT
Primary Interest:
All Treasure Hunting
Hello All,

I have a spot that I want to dredge that is downstream of a bridge support/pier that has been abandoned. Where does gold tend to get deposited around/behind such structures? Any advice is greatly appreciated!!

Thanks,

Old Dirtbag
 

xr7ator

Silver Member
Sep 2, 2011
4,784
6,321
Denver, Colorado
Detector(s) used
Garrett AT Pro, AT Gold, ATX, MH7 (oldie!) Minelab Explorer SE Pro, EQ800
Think of the structure as a riffle of a sliucebox. Adhere to all other known basics of logic and of course, gold is where you find it.

Looking forward to seeing pics of the yella. GOOD LUCK!
 

QNCrazy

Hero Member
Sep 30, 2013
537
959
Motherlode, CA
Detector(s) used
Gold Bug Pro
Don't just focus downstream. You'll want to look directly upstream from the pier. When the water is flowing, the pier creates a low pressure zone in front of the pier.
 
OP
O

Old Dirtbag

Jr. Member
Dec 23, 2015
28
8
South
Detector(s) used
MXT
Primary Interest:
All Treasure Hunting
  • Thread Starter
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Thank You for the info!! The water has caused a V-shaped deposit around the pier-the front, leading edge being the point of the V and the "legs" of the V are beside and downstream of the pier. What area would you dredge first?
 
OP
O

Old Dirtbag

Jr. Member
Dec 23, 2015
28
8
South
Detector(s) used
MXT
Primary Interest:
All Treasure Hunting
  • Thread Starter
  • Thread starter
  • #5
Thank You So Much!!! I will definitely try that area!!
 

Goldwasher

Gold Member
May 26, 2009
6,044
13,143
Sailor Flat, Ca.
🥇 Banner finds
1
Detector(s) used
SDC2300, Gold Bug 2 Burlap, fish oil, .35 gallons of water per minute.
Primary Interest:
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digging under any bridge especially it's pilings is typically illegal
 

Hoser John

Gold Member
Mar 22, 2003
5,854
6,715
Redding,Calif.
Primary Interest:
All Treasure Hunting
Adjacent and even sub-adjacent digging is a huge fine in california on active highways. Caution is needed. John
 

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