The Journal of Explosives Engineering - January/February 2015 - 9
Figure 1. The old bridge.
Forward
In 1934 the Montana highway department contracted to
have a new bridge built across the Yellowstone River on the
east end of Main Street in Livingston, Montana. The 500 ft
(154 m) long modern steel girder bridge was on Highway 10
which was the main east-west route through Montana and
across the northern edge of the country. The traffic lanes were
10 ft (3 m) wide in each direction. Seventy-five years later, the
freeway had bypassed the town and a new bridge was needed
to replace the old narrow structure that was now on a secondary roadway. So the old bridge was scheduled for demolition.
The bridge crosses the Yellowstone River which is the longest undammed river in the contiguous United States. It is
about 100 miles (161 km) from the headwaters of the river
in the mountains along the continental divide in Yellowstone
Park to the bridge site in Livingston. The Yellowstone River is
internationally known as one of the premiere trout waters in
the United States. There are 11 bridges upstream from this
location that will eventually need to be replaced or removed,
as well as hundreds of bridges across the country in similar
condition and terrain that will someday have to be addressed.
As the planning of new construction was started, numerous federal and state agencies and private environmental
groups took notice of the work that would be required to
build a replacement bridge at this location. In the past, when
bridges have been replaced, the removal of old piers has normally been a relatively minor part of the work. Efforts were
usually made to protect fishery resources, but debris from the
old concrete was tolerated as incidental rubble on the river
beds as long as the big chunks that might hinder navigation
were removed. Recently however, some environmentally conscious administrators have come to the conclusion that random pieces of broken concrete have no place in the channels
of some of our nation's rivers. This conclusion has achieved
validity among the managers at the U.S. Fish and Wildlife
Service; the U.S. Army Corps of Engineers; the Montana Department of Fish, Wildlife and Parks; and the Montana De-
Figure 2. Blastholes were drilled through the deck. A temporary work bridge is in the background.
January/February 2015
The Journal of Explosives Engineering
9
The Journal of Explosives Engineering - January/February 2015
Table of Contents for the Digital Edition of The Journal of Explosives Engineering - January/February 2015
From the Executive Director
Concrete Bridge Pier Removal in an Environmentally Sensitive River
Industry News
Chapter News
Calendar of Events
Explosives, 100 Years Ago, More or Less
The Recovery of a Dozer from a Highwall Using Blasting
Safety Talk
21st Annual Photo Contest
The Journal of Explosives Engineering - January/February 2015 - cover1
The Journal of Explosives Engineering - January/February 2015 - cover2
The Journal of Explosives Engineering - January/February 2015 - 1
The Journal of Explosives Engineering - January/February 2015 - 2
The Journal of Explosives Engineering - January/February 2015 - 3
The Journal of Explosives Engineering - January/February 2015 - From the Executive Director
The Journal of Explosives Engineering - January/February 2015 - 5
The Journal of Explosives Engineering - January/February 2015 - 6
The Journal of Explosives Engineering - January/February 2015 - 7
The Journal of Explosives Engineering - January/February 2015 - Concrete Bridge Pier Removal in an Environmentally Sensitive River
The Journal of Explosives Engineering - January/February 2015 - 9
The Journal of Explosives Engineering - January/February 2015 - 10
The Journal of Explosives Engineering - January/February 2015 - 11
The Journal of Explosives Engineering - January/February 2015 - 12
The Journal of Explosives Engineering - January/February 2015 - 13
The Journal of Explosives Engineering - January/February 2015 - 14
The Journal of Explosives Engineering - January/February 2015 - 15
The Journal of Explosives Engineering - January/February 2015 - 16
The Journal of Explosives Engineering - January/February 2015 - 17
The Journal of Explosives Engineering - January/February 2015 - Industry News
The Journal of Explosives Engineering - January/February 2015 - 19
The Journal of Explosives Engineering - January/February 2015 - 20
The Journal of Explosives Engineering - January/February 2015 - 21
The Journal of Explosives Engineering - January/February 2015 - Chapter News
The Journal of Explosives Engineering - January/February 2015 - 23
The Journal of Explosives Engineering - January/February 2015 - Calendar of Events
The Journal of Explosives Engineering - January/February 2015 - 25
The Journal of Explosives Engineering - January/February 2015 - Explosives, 100 Years Ago, More or Less
The Journal of Explosives Engineering - January/February 2015 - 27
The Journal of Explosives Engineering - January/February 2015 - 28
The Journal of Explosives Engineering - January/February 2015 - 29
The Journal of Explosives Engineering - January/February 2015 - The Recovery of a Dozer from a Highwall Using Blasting
The Journal of Explosives Engineering - January/February 2015 - 31
The Journal of Explosives Engineering - January/February 2015 - 32
The Journal of Explosives Engineering - January/February 2015 - 33
The Journal of Explosives Engineering - January/February 2015 - 34
The Journal of Explosives Engineering - January/February 2015 - 35
The Journal of Explosives Engineering - January/February 2015 - 36
The Journal of Explosives Engineering - January/February 2015 - 37
The Journal of Explosives Engineering - January/February 2015 - Safety Talk
The Journal of Explosives Engineering - January/February 2015 - 39
The Journal of Explosives Engineering - January/February 2015 - 40
The Journal of Explosives Engineering - January/February 2015 - 41
The Journal of Explosives Engineering - January/February 2015 - 42
The Journal of Explosives Engineering - January/February 2015 - 43
The Journal of Explosives Engineering - January/February 2015 - 21st Annual Photo Contest
The Journal of Explosives Engineering - January/February 2015 - 45
The Journal of Explosives Engineering - January/February 2015 - 46
The Journal of Explosives Engineering - January/February 2015 - 47
The Journal of Explosives Engineering - January/February 2015 - 48
The Journal of Explosives Engineering - January/February 2015 - cover3
The Journal of Explosives Engineering - January/February 2015 - cover4
https://www.nxtbook.com/naylor/ISES/the-journal-of-explosives-engineering-november-december-2022
https://www.nxtbook.com/naylor/ISES/the-journal-of-explosives-engineering-september-october-2022
https://www.nxtbook.com/naylor/ISES/the-journal-of-explosives-engineering-july-august-2022
https://www.nxtbook.com/naylor/ISES/ises0422
https://www.nxtbook.com/naylor/ISES/the-journal-of-explosives-engineering-march-april-2022
https://www.nxtbook.com/naylor/ISES/the-journal-of-explosives-engineering-january-february-2022
https://www.nxtbook.com/naylor/ISES/ISES0621
https://www.nxtbook.com/naylor/ISES/ISES0521
https://www.nxtbook.com/naylor/ISES/ISES0421
https://www.nxtbook.com/naylor/ISES/ISES0321
https://www.nxtbook.com/naylor/ISES/ISES0221
https://www.nxtbook.com/naylor/ISES/ISES0121
https://www.nxtbook.com/naylor/ISES/ISES0620
https://www.nxtbook.com/naylor/ISES/ISES0520
https://www.nxtbook.com/naylor/ISES/ISES0420
https://www.nxtbook.com/naylor/ISES/ISES0320
https://www.nxtbook.com/naylor/ISES/ISES0220
https://www.nxtbook.com/naylor/ISES/ISES0120
https://www.nxtbook.com/naylor/ISES/ISES0619
https://www.nxtbook.com/naylor/ISES/ISES0519
https://www.nxtbook.com/naylor/ISES/ISES0419
https://www.nxtbook.com/naylor/ISES/ISES0319
https://www.nxtbook.com/naylor/ISES/ISES0219
https://www.nxtbook.com/naylor/ISES/ISES0119
https://www.nxtbook.com/naylor/ISES/ISES0618
https://www.nxtbook.com/naylor/ISES/ISES0518
https://www.nxtbook.com/naylor/ISES/ISES0418
https://www.nxtbook.com/naylor/ISES/ISES0318
https://www.nxtbook.com/naylor/ISES/ISES0218
https://www.nxtbook.com/naylor/ISES/ISES0118
https://www.nxtbook.com/naylor/ISES/ISES0617
https://www.nxtbook.com/naylor/ISES/ISES0517
https://www.nxtbook.com/naylor/ISES/ISES0417
https://www.nxtbook.com/naylor/ISES/ISES0317
https://www.nxtbook.com/naylor/ISES/ISES0217
https://www.nxtbook.com/naylor/ISES/ISES0117
https://www.nxtbook.com/naylor/ISES/ISES0616
https://www.nxtbook.com/naylor/ISES/ISES0516
https://www.nxtbook.com/naylor/ISES/ISES0416
https://www.nxtbook.com/naylor/ISES/ISES0316
https://www.nxtbook.com/naylor/ISES/ISES0216
https://www.nxtbook.com/naylor/ISES/ISES0116
https://www.nxtbook.com/naylor/ISES/ISES0615
https://www.nxtbook.com/naylor/ISES/ISES0515
https://www.nxtbook.com/naylor/ISES/ISES0415
https://www.nxtbook.com/naylor/ISES/ISES0315
https://www.nxtbook.com/naylor/ISES/ISES0215
https://www.nxtbook.com/naylor/ISES/ISES0115
https://www.nxtbook.com/naylor/ISES/ISES0614
https://www.nxtbook.com/naylor/ISES/ISES0514
https://www.nxtbook.com/naylor/ISES/ISES0414
https://www.nxtbook.com/naylor/ISES/ISES0314
https://www.nxtbook.com/naylor/ISES/ISES0214
https://www.nxtbook.com/naylor/ISES/ISES0114
https://www.nxtbook.com/naylor/ISES/ISES0613
https://www.nxtbook.com/naylor/ISES/ISES0513
https://www.nxtbook.com/naylor/ISES/ISES0413
https://www.nxtbook.com/naylor/ISES/ISES0313
https://www.nxtbook.com/naylor/ISES/ISES0213
https://www.nxtbook.com/nxtbooks/naylor/ISES0113
https://www.nxtbook.com/nxtbooks/naylor/ISES0612
https://www.nxtbook.com/nxtbooks/naylor/ISES0512
https://www.nxtbook.com/nxtbooks/naylor/ISES0412
https://www.nxtbook.com/nxtbooks/naylor/ISES0312
https://www.nxtbook.com/nxtbooks/naylor/ISES0212
https://www.nxtbook.com/nxtbooks/naylor/ISES0112
https://www.nxtbook.com/nxtbooks/naylor/ISES0611
https://www.nxtbook.com/nxtbooks/naylor/ISES0511
https://www.nxtbookmedia.com