A couple of things.

Getting data related to any dredging operation at that time is exceptionally difficult. That said, I'm working on it. Nonetheless, the photographs themselves tell a story and are compelling evidence that dredge spoils were used to replenish the entirety of Tena Bar in 1970.

Moreover, the photographs also appear to indicate that the dredge spoils placed upon Tena Bar in August 1974 were of a smallish amount and did not reach the money find spot.

Also, Richard Fazio told me yesterday that dredging along this area was done on an as-needed basis. In other words, it wasn't done in a set number of year.

With that in mind, I suspect that I know what happened here.

1) Tena Bar had been allowed to erode appreciably in the late 1960's as evidenced by the July 1968 photos I've displayed.

2) In January 1970 the Columbia River experienced a high water event that crested on January 24, 1970 at only 2 feet below the June 1972 crest.

3) I'm assuming that the January 1970 high water event necessitated a dredging operation later in 1970. And, that it was this dredging operation that accounts for the enormous amount of sand placed upon the entirety of Tena Bar as evidenced by the September 1970 photo I displayed.

4) Then, of course, the next dredge was in August 1974, but on a much smaller scale and did not reach the money find spot.

5) In 1980, the site is excavated by the FBI and Palmer and he incorrectly assumes the dredge spoils he is looking at are from the most recent 1974 dredge, when in reality they're from the 1970 dredge.

Three USGS hydrologists Ive spoken with say the 1974 spoils could be expected to migrate "thousands of yards in the current over the beach at Tina Bar". So at least three professional hydrologists disagree with your opinion.

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Three USGS hydrologists Ive spoken with say the 1974 spoils could be expected to migrate "thousands of yards in the current over the beach at Tina Bar". So at least three professional hydrologists disagree with your opinion.

GEORGER you constantly misstate things. This does not help anyone.

I have NEVER expressed an opinion that disagrees with spoils migrating "in the current over the beach." Why suggest that I have? That's dishonest.

Rather, what I have said is that spoils cannot migrate up the beach by themselves. The river water did not reach the money find spot after the August 1974 spoils were placed upon Tena Bar. Therefore, it stands to reason that the water did not move the spoils to the money find spot.

So, if 1974 spoils are at the money find spot, how did they get there?

Having said all of this, it is reasonable to deduce that 1974 spoils did not get to the money find spot after all. Simply put, Palmer was wrong when he said that they did.

I don't have a computer right now, and most of my Cooper stuff is boxed away. So, I shouldn't jump in because I don't have the patience to type on my phone. However, the name of the hydrologist was Jeff Bradley, who would have been in his early 30s or late twenties at the time. I tried to contact him with no result.

I had no point in mentioning it other than to say Bradley did work for the ACofE at the time. However, that's meaningless as it was Bradley (and Palmer and others ) trying to figure things out, and not the Army Corps of Engineers the organization.

Reading the FBI documents on Tina Bar is reminiscent of reading this thread on Tina Bar. A lot of reasonable disagreement and a missing smoking gun.

June 28 1974 photo...you can hardly find Tbar...flood peak was June 22 1974

Had to put in Google drive...file to big..

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Its a shared link?