Underground Construction - June 2020 - 28

Pioneers of HDD Inducted into Hall of Fame
out to the machine. If you got into clay, you'd squirt some dish
soap in your drill rod and put the water on," he said. "Years later,
we made a portable bentonite mixing machine. You'd end up with
half of a tank left of mud, and you'd just take it down to the corner
where the storm drain was."
As the city expanded, Melsheimer's crews stayed busy running
1-inch conduit for street lighting. While the basic approach stayed
the same, tractors with augers replaced hand-digging of potholes, and
a two-man crew made fast work of it. From there, equipment kept
getting more powerful, and HDD capabilities continued to improve.
"We were one of the first ones out there with Ditch Witch ... and we
had the first electric-over-hydraulic controls, where the guy didn't
actually hold onto the controls on the carriage, walking it up and down
the track," instead standing 20 feet away with joysticks," he said.
Melsheimer described an early river crossing in New Zealand
using an RD300 Radiodetection locating system as being "like the
Model T era" compared with the "Tesla era" of today.
"It would normally give out an interrupted signal, and then when
you stop at the 6 o'clock position, it would give you a solid tone. And
that's all it would give you - period," he said, adding that the system

Dick Melsheimer was honored at the
HDD Reunion at UCT.

used on the New Zealand project could locate down to 20 feet
"after you cross your fingers and pray for it.
As crude as sighting was in the old days, Melsheimer said, the systems were accurate enough to drill about a foot off of a live gas main.
"It was just amazing how accurately (operators) would hold that
thing," he said. "There was a lot of hope and pray with this method
because the rotation of it would normally cause it to climb and go to
the right. The good ones who'd do the sighting would know how to
aim it left and down."
"Again, it was the Model T era, but it worked, and we got millions
of feet of that polyethylene put in the ground in L.A.," he said.
"The beauty of it is that it only lasts 50 years. So, guess what has
to be replaced."

Martin Cherrington: Big, Bold Projects
Prove HDD's Value in New Markets
While Dick Melsheimer's work in L.A. focused primarily on compact
applications, Martin Cherrington was thinking big in Northern
California with the development of large rigs and visions of
environmentally friendly river crossings.

Dick Melsheimer conducting hydraulic drill track testing.

Martin Cherrington (left) in 1971 standing with his crew at the pilot bit exit point on the historic
Pajaro Crossing.

28

JUNE 2020 | UConOnline.com

Martin Cherrington was honored at the
HDD Reunion at UCT.


http://www.UConOnline.com

Underground Construction - June 2020

Table of Contents for the Digital Edition of Underground Construction - June 2020

Contents
Underground Construction - June 2020 - FC
Underground Construction - June 2020 - IFC
Underground Construction - June 2020 - Contents
Underground Construction - June 2020 - 4
Underground Construction - June 2020 - 5
Underground Construction - June 2020 - 6
Underground Construction - June 2020 - 7
Underground Construction - June 2020 - 8
Underground Construction - June 2020 - 9
Underground Construction - June 2020 - 10
Underground Construction - June 2020 - 11
Underground Construction - June 2020 - 12
Underground Construction - June 2020 - 13
Underground Construction - June 2020 - 14
Underground Construction - June 2020 - 15
Underground Construction - June 2020 - 16
Underground Construction - June 2020 - 17
Underground Construction - June 2020 - 18
Underground Construction - June 2020 - 19
Underground Construction - June 2020 - 20
Underground Construction - June 2020 - 21
Underground Construction - June 2020 - 22
Underground Construction - June 2020 - 23
Underground Construction - June 2020 - 24
Underground Construction - June 2020 - 25
Underground Construction - June 2020 - 26
Underground Construction - June 2020 - 27
Underground Construction - June 2020 - 28
Underground Construction - June 2020 - 29
Underground Construction - June 2020 - 30
Underground Construction - June 2020 - 31
Underground Construction - June 2020 - 32
Underground Construction - June 2020 - 33
Underground Construction - June 2020 - 34
Underground Construction - June 2020 - 35
Underground Construction - June 2020 - 36
Underground Construction - June 2020 - 37
Underground Construction - June 2020 - 38
Underground Construction - June 2020 - 39
Underground Construction - June 2020 - 40
Underground Construction - June 2020 - 41
Underground Construction - June 2020 - 42
Underground Construction - June 2020 - 43
Underground Construction - June 2020 - 44
Underground Construction - June 2020 - 45
Underground Construction - June 2020 - 46
Underground Construction - June 2020 - 47
Underground Construction - June 2020 - 48
Underground Construction - June 2020 - 49
Underground Construction - June 2020 - 50
Underground Construction - June 2020 - 51
Underground Construction - June 2020 - 52
Underground Construction - June 2020 - 53
Underground Construction - June 2020 - 54
Underground Construction - June 2020 - 55
Underground Construction - June 2020 - 56
Underground Construction - June 2020 - 57
Underground Construction - June 2020 - 58
Underground Construction - June 2020 - IBC
Underground Construction - June 2020 - BC
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202205
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202204
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202203
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202202
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202201
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202112
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202111
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202110
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202109
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202108
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202107
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202106
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202105
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202104
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202103
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202102
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202101
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202012
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202011
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202010
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202009
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202008
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202007
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202006
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202005
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202004
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202003
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202002
https://www.nxtbook.com/nxtbooks/gulfpub/uc_202001
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201912
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201911
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201910
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201909
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201908
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201907
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201906
https://www.nxtbook.com/nxtbooks/gulfpub/uesi_summer2019
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201905
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201904
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201903
https://www.nxtbook.com/nxtbooks/gulfpub/uesi_winter2019
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201902
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201901
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201812
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201811
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201810
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201809
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201808
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201807
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201806
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201805
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201804
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201803
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201802
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201801
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201712
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201711
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201710
https://www.nxtbook.com/nxtbooks/gulfpub/uc_ditchwitch
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201709
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201708
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201707
https://www.nxtbook.com/nxtbooks/gulfpub/uc_201706
https://www.nxtbookmedia.com