Latest or all posts or last 15, 30, 90 or 180 days.
Upgrade the memory of your 2018 Mac mini up to 64GB
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$1299 $929
SAVE $370

$2799 $2499
SAVE $300

$1450 $900
SAVE $550

$2445 $2145
SAVE $300

$1199 $999
SAVE $200

$5699 $4699
SAVE $1000

$1799 $1349
SAVE $450

$2999 $2399
SAVE $600

$18599 $17599
SAVE $1000

$600 $400
SAVE $200

$249 $249
SAVE $click

$1149 $799
SAVE $350

$1499 $999
SAVE $500

$1799 $1349
SAVE $450

$1399 $1049
SAVE $350

$150 $50
SAVE $100

$380 $340
SAVE $40

$440 $440
SAVE $click

$249 $249
SAVE $click

$370 $330
SAVE $40

$420 $170
SAVE $250

$1499 $699
SAVE $800

$1499 $699
SAVE $800

$420 $170
SAVE $250

$369 $200
SAVE $169

$1699 $1399
SAVE $300

$1498 $998
SAVE $500

$999 $949
SAVE $50

$1099 $999
SAVE $100

Canon EOS R5

NEW! Available for pre-order.

45 megapixels, 8K30 and 4K120 10-bit video, IBIS, 5.7 megadot EVF, 20 fps.

Saddlebag Lake is Drained, Dam Looks to Have Serious Integrity Issue via Meter-Wide Hole

Until I crossed the gangway over the dam enroute to the Hall Natural Area in the Mt Conness drainage, I wondered why Saddlebag Lake had been drawn down to little more than a creek below the base of the dam.

The answer appeared when I crossed: a gaping hole about a meter in diameter. As I understand it, with enough pressure (e.g., full head in springtime) even a much smaller hole could drill a 'pipeline' right under the dam, and possibly cavitate and ultimately undermine the bedrock upon which the dam rests.

Judging by the size of the hole it looks to render the dam inoperable until repaired. I did not investigate below the dam on this day, since I was on a schedule, and wherever that water has been going it could be emerging far below. While the size of the entry hole might be much larger than where water has to squeeze through, when the reservoir is at capacity as in 2017, there must be ~70 feet of head above the hole (more as it deepens)—that’s a lot of pressure against the mostly metamorphic rock underlying the dam. Mix in some gritty sand for scouring and that relatively soft rock might wear away quickly.

It’s ironic that all the new cladding installed on the face of the dam a few years ago is for naught until this breach is fixed. I’m no dam engineer but it doesn’t seem so simple to me to fill in a hole that burrows under a dam. Seems to me that one cannot just pour a concrete slurry down the hold and hope it holds, but that the entire frontal area would need to be scraped to bedrock, and a thick cap of concrete poured over it all.

Meanwhile, most of the trophy trout that I saw swimming around in July in this very place are surely still holed up in the much-reduced lake volume—gotta go fishing this fall! Fish and game regularly releases some monster (as large as 28 inches) into area lakes.

Hole at the base of Saddlebag Lake Dam, at least a meter in diameter
f5.6 @ 1/50 sec, ISO 100; 2018-09-11 17:36:10
Sony A7R III + Zeiss Batis 18mm f/2.8
ENV: Saddlebag Lake Dam, altitude 10000 ft / 3048 m
RAW: LACA corrected

[low-res image for bot]
Saddlebag Lake Dam
f8 @ 1/500 sec, ISO 100; 2017-06-25 16:38:01
LEICA M10 + Leica 18mm f/3.8 Super-Elmar-M ASPH

[low-res image for bot]
Save Big $$$$ on Memory for 2019 Mac Pro

Up to 65% better pricing than Apple

Lloyd recommends 32GB RDIMM modules for most users (more expensive LRDIMMS are for 512GB or more).


OWC Accelsior 4M2 PCIe SSD
6000 MB/sec!
Mac or PC.


Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!
OWC Thunderblade Thunderbolt 3 SSD

Blazing fast, up to 16TB.

YEE HAH!



√ No more slow and noisy hard drives!
OWC Envoy Pro EX SSD
Blazingly fast Thunderbolt 3 SSD!

Up to 4TB capacity, USB-C compatible.

USB-C model also available


Great for travel or for desktop!

Save the tax, we pay you back, instantly!
View all handpicked deals...

Apple 16" MacBook Pro (Late 2019, Silver)
$2799 $2499
SAVE $300

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.