Reproduced from the -holdings of the National Archives
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Pacific Southwest Region
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ENGINEERS-CONSTRUCTORS
H, L. Dietze
FROM:
ACY64 C5 f
HOLMES & NARVER, Inc.
jos. _
David L. Narver, dr.
884
0/8 7582
ee...Marine Railway
yr
19 February 1954
The following scheme has been proposed as a substitute for the
marine railway on Elmer, Comments by the Home Office are in order,
The proposal is to utilize Building 19 by replacing the present
gantry crane with two gantrys, each with a capacity of 75 tons. By running
the gantrys. in tandem we can pick up an LOT which weighs about 140 tons
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This would allow four (i) boats to be put ashore.
Will present wood piling take such a load = the load
being distributed on eight (8) wheels, four (4) on
each side?
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The cart would be on railroad rails which extend
Each wheel willhave approximately 15.5 tons
and will be at least twenty (20!) feet from any other
wheel on the same rail,
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The gantrys would pick
The questions that require answering by the Home Office are:
f
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@ur old figure of 105 tons is in error),
the boat out of the water, walk it over to solid ground, where the boat
he
If beefing up is required, what is recommended?
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Can the present gantry be modified to take 75 tons?
Suggested modifications should assume approximately
the same lifting speed as crane now h*#,,
Cost of a new gantry to take 75 ton load and still meet
space clearances for present crane.
You have driving records. for the piling for Building 119, so
Dames & Moore should be able to at least attempt a bearing value for the
present piling,
David Le
Narver
Tsoe
Chief Project Engineer -
DINJrs jm
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R. A. Boettcher
HO Chrono
HO Central
OS Chrone
OS Engr.
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