Reproduced from the -holdings of the National Archives ere Pacific Southwest Region / - JL TO... ees 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 (Note: > S . ¥ 2 5 3 . a 4 wep = . would be put on a cart. o2cross that end of Elmer, NS ¥ 3 5 .9 > vy fo « ty $ SP MY > 3 S e8 sy fp Sup ES} LF > 8 ‘Ny ef 2/6 St oxlez “TALS * ‘ le by a g <}an whey 2. 3. = " s ® &* wu 5 $ 6 ui @ Oo mam ve . 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? S 6§& 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, - O x The gantrys would pick The questions that require answering by the Home Office are: f vyou * aR} EF @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? ' 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 ccs 4 R. A. Boettcher HO Chrono HO Central OS Chrone OS Engr. \'v H . R.