Isthmian Canal Commission (U.S.).

Canal Record (Volume 4 no.1-52) online

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1.1414


346,575


.7306


539,859
2,717


.5906




1.1414












Total




$1,663,142.92






$13,477,355.50






$15,140,498,42




Galun-Mindi Levee —
22 Dry BU








177,158
20,398


$68,985.15
3,483.32


$0.3894
.1708


177,158
20.398


68,985.15
3,483.32


$0.3894


11 Hydraulic ail









.1703





















| $72,468.47






$72,468.47






125,897


$86,748.50


$0.6890


233,993


$578,634.15


$2.4729


359,890


$665,382.65


1 84 88










$2,889,795.18






$27,350,526.52






$30,240,321.70
$3,620,051.46




25 Plant and equipment to be absorbed in








»
























$33,860,373.16





Central Division —


4,278,626
acres 70


$2,693,027.61
277.59


$0.6294
$3.9656


73,059,609
acres 2210


64,299,578.91

139,038.82

9.798.40

4,178.73


$0.8801
$62.9134


77.338,235
acres 2,280


$66,992,606.52

139.316.41

9,798.40

6.224.44


$0.8662


27 Clearing Canal line, without excavation


61.1037




146


2,045.71


14.0117


874


4.7811


1,020


6.1024






Total construction cost. Central Division




$2,695,350.91




; $64,452,594.86






$67,147,945.77




30 Plant and equipment to be absorbed in
















$790,169.02






















Total expenditures. Central Division. .


$67,938,114.79




Pacific Division —


154.775

1,458.049

105,720


$126,668.70

266,065.03

90,062.81


$0.8184
.1825
.8519


283,168

27,128.923

91,957

4,074
260.852


8235,493.23

6,780,190.14

39,739.45

$6,167.28
121.363.91


I$0.8316
.2499
.4322

$1.5138
4653


437.943

28.586,972

197,677

4,074
260.852


$362,161.93

7,046.255.17
129.802.26

$6,167.28
126.001.82


$0.8270




.2465




.6566


Pedro Miguel Dam —


$1.5138


35 Dry filling




$4,637.91




.4830












$4,637.91






$127,531.19.






$132,169.10




Ped o Miguel Locks —


4,536

8,693

66,013


$4,030. 10
22,339.25
378.093.60
29.016.73
41,202.94


$0.8885
2.5698
5.7276


1,030.544
113,102
599.043


$994,676.01
323,850.34

3,212,692.04

490,384.33

77.186.60


$0.9652
2.8633
5 . 3630,


1,035.080
121.795
665,056


$998,706.11
346.189.59

3,590.785.64
519,401.06
118,389.54


$0.9649




2.8424




5.3992






40 Back filling


94.670


.4352


188.655


.4091


283.325


.4179










$474,682.62






S5.09S.789.32






$5,573,471.94




Mirajlores Dams and Spillway —
41 Dry filling


125,607


$49,419.99
13,548.54


$0.3934


690.892


$394,527.44

9,191.76

429.51

19,991.26


$0.5710


816,499


$443,947.43

22.740.30

429.51

19,991.26


$0.5437
























14,536


i.3753i


14,536


1.3753
















$62,968.53






$424,139.97







$487,108.50




Miraflotes Locks —






5,885*
1,427, 276J
309,647
332,703
196,598
173,115


$2,028.98
1.488,458.62
142,379.66
195.299.02
370.060.57
894.236.32
446,698.68
109,167.05


$0.3448

1.0429

.4598

.5870

1.8823

5.1656


5.885
1.597.835
309,647
332.703
201.788
274,563


$2,028.98
1.622,729.54
142,379.66
195,299.02
389,542.77
1.377,270.28
543,027.96
127,493.79


$0.3448




170,559


$134,270.92


$6.7872


1.0156




.4598










.5870




5,190
101,448


19.482.20

483,033.96

96.329.28

18,326.74


3.7538
4.7614


1 . 9305




5.0162






52 Back filling


38.716


.4734


545,096


.2003


583,812


.2184






Total




$751,443.10






$3,648,328.90






S4.399.772. 00



















♦Indicates credit.



(3)



Table 1— (Conlinutd.)





Fourth Quarter, Fiscal Year, 1911.


To March 31, 1911.


Total to June 30, 1911.




Quantities.


Unit
Amount. : Cost.


Quantities, i Amount.


Unit
Cost.


Quantities.


Amount.


Unit
Cost.


La Boca Locks and Dams (abandoned) —








78,233


$158,343.29
315,350.07
159,306.40


$2.0240


78,233


$158,343.29


2.0240










315,350.07 1
















159,306.40 1




























$632,999.76




. . .1 $632,999.76 1






S6.649.41






$51,456 65






S58.1C6.C6




















Total construction cost. Pacific Division


1 $1,783,178.11




1 $17,038,668.61




... $18,821,846.72


57 Plant and equipment to be absorbed in















$2,765,795.11






























1.




$21,587,641.83





















- Total expenditures, constr. and engr'n'g










1





$123,386,129.78 1



Item 24 — Colon Breakwater. The low cost for the quarter is due to the return to the storehouse of piling and timber, which had been previously charged to the work,
but not used.

Item 28 — Dredging Excavation, prism. Preliminary surveys.

Item 32 — Dredging Excavation, prism. With the accounts for the month of April, the total cost of the dredging plant had been absorbed into the work; hence
no arbitrary for plant is charged in this quarter.

Item 42 — Miraflores Dams and Spillway. Hydraulic filling. Expenditures represent cost of pipe lines, flumes, etc.. 582,732 cubic yards ^have been deposited in
Dam from dredging and hydraulic excavations in lock chamber and in prism below the locks, the total expenditures therefor being charged to "excavation."

Items 53, 54, and 55. These expenditures were incurred prior to the adoption of Miraflores as the site for the lower locks and dams, at the Pacific entrance of the
Canal.

Items 25, 30, an:l 57 — Plant. The expenditures for plant and equipment are absorbed into construction costs on the basis of estimated total cost of plant, and
the estimated quantities of work to be done. The amount under these items represent the balances which are to be absorbed into construction costs after June 30, 1911.

General — When excavated material is used in filling, such as dams, back filling, etc., the cost of dumping only is charged to the items benefited, all other expenses
being charged to "excavation."



DAM CONSTRUCTION.



Detailed cost per cubic yard for quarter ending June 30


1911:


Table


No. 2.


















I


TEMS.








Gatun Dam.


Miraflores Dam.




April.


May.


June.


Total.


April.


May. j June.


Total.




205,130


207,751 227,996 640,877 i| 67,260 30,032 | 28,315


125.607
















SO. 0279
.0007
.0473
.0134
1358
.0900
.0456
.0979
.0112


SO. 0255 |$0.0287 '$0.0274
0005 0006 0006






















.0537 1 .0332
.0013 l .0018
. 1113 1 .1149
.0922 1 .0848
.0259 I .0274


0444 1




$0 0889


SO 0619


$0.0509




.0054
. 1204
.0888
.0327
.0963
.0120










.0397
.0354
.0074
. 1700
.0052


.0634 .0627
.0983 l .1125
.0284 1 .0435
.1700 .1700
.0145 | .0139


0505




.0678




.0206




.1700




.0120


.0127


.0094
















$0.4698
.0316


SO. 4170
.0357


$0.4007
.0219


$0.4280 l',S0. 2870
.0295 |l .0163


$0.4635
.0385


$0.4645
.0281


$0.3692




0242
















$0.5014


$0.4527


$0.4226


$0.4575 l'JO.3033


$0.5020 l$0.4926


$0.3934


Hydraulic Fill — Quantities — cubic yards. .










368,658 [419,348


432,008


1,220.014


























$0.0007 $0.0005
0123 0070


$0.0006


SO. 0006
.0073
.0684
.0102
.0222
.0024
.0419
.0018
t 0057
.0500
.0044


1
















.0693 0685 0678










.0088 0139


.0077
.0449
.0428
.0028
.0016
.0325
.0500
.0044










.0084
.0018
.0374
.0023
.0194
.0500
.0045


.0110
.0026
.0450
0015
t.0672
.0500
.0042






















































































$0.2149
.0151


$0. 1370
.0140


$0.2585
.0150


SO. 2035
.0147






































$0.2300


$0.1510


$0.2735


$0.2182


1








Colon Breakwater.


Items.


Colon Breakwater — Cont'd.




April.


May.


June.


Total.


April.


May.


June.


Total.


Excavation — Quantities — Cubic yards


40,699


38.534


46.664


125,897




Filling — Quantities — Cubic yards. .......


40,699


38,534


46,664


125,897




$0.0254
t.0045
.0545
.2761
1191
.4132
.1135
.0330


$0.0192

0655
.2803
.0569
.0203
.1174
.0900


SO. 0036
.0024
.0310
.2028
.0652
.0785
. 1039
.0658


$0.0155
t .0006
.0491
.2502
0801
. 1689
. 1111
.0626




Trest

Dura




$0.1661

.0215
.0171


t2.0907;S0.2441
.02721 .0116
.0165 1 .0148


tS0.4957






.0196




.0160










1


•otal


$0.2047


+S2.0470 $0 2705


tS0.4601










Ml 1690
.0347


$0.1690
.0534




Division expens




.0378
.0691


.0384




$1.0303


SO. 6496


$0.5532


$0.7369


Tugs






.0643


.0309


.0369










Total division cost. .
Administrative and




$1.5109
.2046


t$1.1257
.1569


SI. 0583
.1046


$0.5361










general expenses. . .


.1529








(


jrand tots








SI. 7155


t$0.9688|$1.1629


$0.6890



*Credit under trestles in May is due to material, already charged into the work, being returned to Quartermaster's Department. This was done in order to
determine the actual cost to May 31, 1911.
flndicates credit.



LOCKS AND SPILLWAYS CONSTRUCTION.



Table No. 3.



Detailed cost per cubic yard for quarter ending June 30, 1911 :

























Items.


Gatun Spillway. Gatun Locks.

II


Pedro Miguel Locks. Miraflores Locks.


April.


May.


June.


Total.


April, i May.


June.


Total.


April.


May.


June.


Total.


April.


May.


June.


Total.


Dry excavation — Quantities —
















4,53(


4,536 77,521


56.295


36 74.


170 5.5Q








































S0.0871S0 0871 $0 0381'SO 1233 Sn 1199 SO 0830
























.0041 0041 0813 n5ir


























.2221
.1175
. 1550




1054i 1081
























.1175 .1515
15.50 11.533


.2138
0864




























0686

























. 0227| .0587


0201










































.0491


.0491





.0391, .029C


0192








































1 .1399 .1399 .0436
.0009 .0009 .0900
0379 0379 0163


0520 0890 0562














'






0900 0900 0900


























































SO. 8136 $0.8136 $0.5734 SO. 8325 SO. 8300 $0.7155
.0749 .0749 .06131 .0891 .0672 .0717








































1












Preparing foundations, excava-
tion — Quantities — cubic yards.


1,778 2,051 115 3,944


23,186 14,685j 4.725


It 1 1 1
42.596; ( 255| 5,520, 2,9181 8,693


| 2.230 1.680


1,280 5,190




SO. 0777
.0301
f.2740




$0.0350 SO. 1100 $0. 1210'SO. 2092


SO. 1248 S4. 8913 SO. 2759
.1133 .9515 .0668
.1132 1.0446! .2767
.3495 1.0351 .7267
. 1635: 3.3067 .0439


SO. 4840 SO 4811IS0 7892 SO 0206










.0135
.0191


.0883 .09891 .2806
.1048: .1301 .1016
.2690; .2973! .9065
.13251 .2480 .0085
.1853 .3166 .3495
.2982 .1299 .1173
.1840 .2404, .2292


.1589' .1237 2062


.1657






.2182


.9983


1 . 2064

1.1463 .8766








.4310; 1.2793


11.6028 1.1979


! . 78?3


1.7760
.1025
.2877
.0391
.3171


1 3966 1 6852




.0195! .0213, .2978 .0286
.0435 .0206 .0303


.2546 .2103 .0514


0346 0638




2438 ; .0631 .0484 .0377 .0452

2201 0306 0411 0490 0435 0419


.4234 1975






.0042 , .0022

.2081' .9937! .1532
.6061 5.8043 .5915






.0355
.2376


.20841 .1097


.2553 .0675, .1880 .1386


3186 .2408




.1190 .1190
.0619, .1538


.1190 .1190
1.6020 .1546


.1190 .1190 .1190
.0698 .0761 .1507


.1190 .0033
. 0810 1 .4890


.0095' .0009 .0065, .0900 .0900


0900 0900




.0889 .1357| .11631 .1832 .2026] .1316 .1768










SO. 7818 §2.6306
.1189. .4106


21. 4179 $2. 3449 $1.5609 $1.7773 S2.4721
2.7043, ,3460 .1842' .2061, .2608


$1. 7366 !:il.924°!$l. 8332 $2. 3346J$2. 2976 S3. 2828 $3.9013
.2003 1 1.4805| .2236, . 2588J .2722 j .4343 ,4979


$2.7088 $3 3414


Admin, and general expense. .


.2618 .4124




SO.9007'S3.O412


24. 1222 SJ 6909


SI 7451 SI 9834 S2 7329


$1.9369 13. 4054^2 0568 S2.5934 S2 . 569S S3. 7171 $4.3992


S2. 9706 $3. 7538


Preparing foundations, concrete






2,544 5,424 228 8.196



































SI. 6712 SI. 9814 10. 5473 $2. 1234
.0861 .0291 7611 .0679
.0050, .0115 .4125 .0207






!




















































1 ! 1


























$1.7623 S2.0220 11.7209


$2.2120
.0775




























.0694


.0369


1.1339






















































SI 8317


$2 . 0589


12. -8548


$2.2895


















Masonry.

Concrete — Quantities — cubic yds .


4,169


3.656


4,830


12.655 62,021


60,818


49,293 172,132


28,635| 18.905


17,875! 65,415


38,758| 36154] 26,536


101,448




$1.9118

1 . 6440

.8328

.3250


$1.6243 SI. 7286


SI 7588S1.7466S1.4229 ! S1. 5919 SI. 5879 SI. 7282 SI. 1S94S1 5756 SI 5307 SI 5457S1 2116S1 R8IOS1 51JQ




1.6915 1.7076 1.6820 1.S513
.6247, .67661 .7130 .8087
.2959 .2741 .2972 .1783


1.9407: 1.9641 1 1.9152 .80001 .7812; .7812 .7894, .8184 7812' 7812' 7954




.7019! ,8946i .7955 .4089 .40421 ,390l! .4025' 4089 4042 3901 40">3




.19041 . 1814 .1835 .2649 .2241| .3065! .2645:; 4053 1 3204! 3577 !»is










S4.7136


$4.2364 S4. 3869 S4. 4510 S4. 5849


$4. 2559 S4. 6320 S4. 4821 S3 . 2020 S2 . 5989


$3.0534 S2. 9871


$3.1783 S2.71R4 S3 4100


Large Rock — Quantities — cubic








3,735


5,407


4,61l| 13,753






213


213










































$1.5588
65,756


$2.3514 $0.9705J$1. 6732
66,225 1 53,904| 185,885






$0.2808
18,088


$0.2865
65,628










Masonry — Quantities — cubic


4.169


3,656


4.830


12,655


28,635


18,905


38.758


36.154


26,536


101,448








Concrete


S4.7136


$4.2364 84.3869


S4.4510S4 3245


S3. 9085 $4.2357!$4.1505
.19201 .0831 .1238


$3.2020


$2.5989


S3. 0174
.0033
.5603
.0093
.4328


$2.9774 S3 1783'x->.71R4'S3 4109


$3 0752










.0886


.0009
.6625








.5776


1.0276


.5220


.686+


.4006


.42421 .41821 .41411


.8073


.5411
.0094
.5373


3031 2882 7931 4">6n




.1637 .11671 .17011 .1488;| .0220
.3241] .3204 .3608| .3334: .4112
.0068 .0452 .0126, .0222' .0171


.0149 .0500 .0315 0306 0383




.4298
.0006
.0122


.6132


.4604


.4945
.0364
.0040


.4534 .1622 .2193! ~>553' 2070




. 0020 . 0933


.2026 .0692
.0416 .0485


.0849 .0187 .0585 .0552 0424








.0373 .1129


.0925
.0497


.0803! .0305
.0672]! .0416


.0387
.0463


.0419
.0111


.0391
.0218


0290 0375








.0661


.0826


.0588


.0406






.2703
.2807
.4670
.1184


t.1546

.0550
.4670
.0880


.0461
.1076
.4670
.0869


.0620
. 1495 1
.4670






Maintenance of equipment . . .


.2116

.7110


.1912
.7110
.0701


.3474
.7110
.0918


.2437i| .1862
. 7 1 10'l .7172
.0776 ! l .0905


.2850
.7362
.1066


.2139
.7140
.1022


.2223
.7218
.0984


. 1046
.4100
.0703


. 1834
.4100
.0762


.2037
.4100
.1002


.1586
4100




.0975 .0736


0.S02










S6.8702


S6.3346


S6.1702 ( $6. 4483 $6.4079
.34531 .3308 .2390


$6.1748


S6.5729


S6. 3726 $5.5256


tS. 11 i 5
.4032


S5.2115
.2964


$5.3215 $4.3502 S4. 0464 S5 . 3277 S4 4976


Admin, and general expense.. .


.3157; .3289


.2493' .2744 .2530' .2887


.32381; .1828] .3107' .3182! .2638




$7.1859 36.6635


S6 5155 S6 7791 S6 6469


S6.4241i$6.8473 S6.6256 S5.8143


$5.5207


$5 5079 S3. 6453 $4. 5330 $4. 3571 |S5. 6459 S4 7614


Masonry, reinforced — Quanti-








. . .


1,605 1,619


1,401 4,625


230 155 385


!



























$2.3717 S1 9827


$2.1590 82. 1711


$2.0777 S3. 0798 S2.4811
.7816, .7479 . 76SO
















1 . 5383

.5939

1.3140


1.6859

.6928

2 . 4803


1.7935
.9408

4.3088
.8967

1.2891
.8238
.7558


1.6673
.7336

2.6295
.5231

1.1388
.9045
.6343



















.4038 .3641


.3878
6.4624

















6.4993


6.4076




.:.::. :i:::::::












.3503 3712
















.9018
.8059
.3928


1.2437

1.0721

.7686




.2436
*

1 . 0289


2.2706
1.9612
9.1199


1.0597

.7896

4.2863


::::::: ::::::: :::::::






























1





tlndicates credit.



Table No. 3 — (Continued)



Items.


Gatun Spillway.


Gatun Locks.


Pedro Miguel Locks.


MlRAFLORES LOCKS.


April.


May.


June.


Total.


April.


May.


June. Total.


April.


May.


June.


Total.


April.


May.


June.


Total.


Masonry, reinforced — (Continued)








.0666
.7110

.2514


.2457
.7110
.2754


.1512
.7110
.3968


.1549
.7110
.3038






.0084


. 0034



















.6900
.6258


.6900, .6900












i




1.0941 .8143]
































$9.2977 11 5294


14.2265
1.4230


11.5719
1.0597




12.3507
1 . 6400


25.7436 17.7426
2.5546. 2.0082;
















.7195


1.0826




























10.0172


12.6120


15.6495


12.6316




13 9907


28.2982:19.7508










Total Masonry — Quantities —









1










4.169 3,656 4.830


12.655; 67.36!


67.844


55,305


190.510


28,635


19,135, 18,2431 66,013


38.758


36,154, 26.536' 101,448






Total cost


$7.1859'$6.6635$6.5155


$6.7791 S67272.S6.5718


$7.0702


$6.7714


$5.8143 $5. 6224,$5.7016'$5. 7276


S4.5330 S4. 3571 S5.6459,$4. 7614






Back Jilting — Quantities — cubic


595


1.292


3.830


II
5,717|j 77,880


65.608


49.796


193.284


61,379 14.420 18,871 94,670


6.540


16.021


16,155 38,716








$1.2414


$0 0449 SO 0670


$0.1849






















$0.0011
.0270
.0447
.0546
.0746
.0253
.0292
.0114


$6.0003 SO. 0013






SO. 0044


$0.0018












$0.0222
.0429
.0309
.0539
.0421
.0241
.0103


.0250
.1425
.0552
.1581
.0496
.0193
.0255


.0237




$0.0020 $0 0236 S'> i .,51)

.3505 ,0246 .0978 SO. 0015

.0833 .0849' .0505

.1678 .2191 .1152 2810
.0421 0592, .0226 .0107
. 1000 . 1000 1000 . 1000
.0280 .0180 .0126 .0198


.0076
.0057
.0609
.1390
.0230
.1000
.0157


$0.0022 .0041




3.0818


.5523


.2324


.6012


.0692 SO. 0609
.0452i .0324
.0878 .0709
.03831; .0067
.02461 .1000
.0146; .0073


.1323 .0578






.0642 .0520




.0514


.1756


.1741


.1616


.1526 .1687




.0465 .0307








.0227
0312


.0152
.0542


1000
.0195


.1000




.2502


.0322


.0180











Total division cost

Admin, and general expense. . .


S4.6248
.6442


$0.8050 $0.5283
.1118 .0632


$1.0171
.1347


SO. 2264
.0266


SO. 2679
.0325


$0.4755
.0514


$0.3047 $0.2782
.0350' .0221


$0.7737 SO. 5294 SO. 4037 SO. 4130, SO. 3563 $0.5173
.0675, .0345 . 0315 j .0467 .0365 .0415


$0.4331
.0403


Total cost


S3 2690


$0.9168!$0.5915


11.1518


So 2530


$0.3004


$0.5269


$0.3397i,$0.3003


$0.8412 SO.5639SO.4352 SO. 4597 $0. 3928S0.5588


$0.4734


Filling center wall — Quantities








2.717


2.717








































































$6. 0084 '$6. 66m
































.8028 .8028


















Filling














.2042
.0016


.2042
.0<M6




























































































.04u:


.0464


















































I






$1.0634


$1.0634
.0780
















Admin, and general expense












.0780






















1
































$1.1414


SI. 1414



















iotai cost I ■ ^t.i'ntjiii.itj^ _l^-__

♦Placing of "Masonry reinforced" was charged to "Masonry" in May, no sepirate account having been kept.



DRY EXCAVATION— PRISM.



Detailed cost per cubic yard for quarter ending June 30, 1911:



Table No. 4.



Items.




Atlantic Division.






Central Division.


1


Pacif:c Division.




April.


May.


June.


Total.


April.


May.


June.


Total.


TApril.


May.


June.


Total.


Dry excavation — Quantities — cubic yards


74,030


58,982


55,657


188,669


1,485,039


1,300,463


1,401,016


4.186,518


45,864


33,445


75,466


154,775




$0.0337


$0.0448
.1057
.0717
.0489
.1572


$0.0408
.0652
.0601
.0493
.1646


$0.0393
.0523
.0656
.0526
.1364


$0.0492
.0670
.0535
.0773
.0637
.0437
.0055
.0901
.1000
.0121


$0.0586
.0792
.0559
.0853
.0883
.0449
.0053
. 1030
. 1000
.0117


$0.0554
.0576
.0421
.0821
.0737
.0440
.0042
.1011
.1000
.0112


SO. 0542
.0676
.0504
.0814
.0747
.0442
.0050
.0978
. 1000
.0117


$0.0083
.0528
.1153
.1731
.0549
.0257
.0381
.0506
. 1011
.0190


$0.0."41
.0329
.1464
.1522
. 1040
.0497
.0399
.0810
. 1037
.0327


$0.0870
.0478
. 1171
.1300
.0924
.0454
. 0336
.0992
.1002
.0292


SO. 0631




.0461




.0649
0580
.0989


.1229




.1475




.0838




.0405












.0363




.0744
. 1190
.0147


.0460
.1190
.0188


.0959
. 1190
.0202


.0719
. 1190
.0176


.0809




.1012




.0269








$0.4636
.0411


$0.6121
.0595


SO. 6151
.0366


$0.5547
.0455


$0.5621
.0447


$0.6322
.0570


$0.5714
.0426


$0.5870
.0478


0.6389
.0697


$0.8266
.0877


$0.7819
.0607


SO. 7492




.0692




5,11 SII4 7


SO. 6716


$0.6517


$0.6002 !


SO. 6068


$0.6892


SO 6140


$0.6348


$0.7086


$0.9143


$0.8426


$0.8184


Dry excavation — Prism, by contract —








31.400


28,420


32,288


92,108






























SO. 2120
.1000


$0,3503
. 1000


SO. 2966
. 1000


$0.2S43
. 1000
























































.3120


.4503


.3966


.3843










Total dry excavation — Quantites — cubic


74,030


58.982


55,657


188,669


1,516,439


1,328,883


1,433.304


4,278,626


45,864


33,445


75,466


154,775








$0.5047


SO. 6716


$0.6517 SO. 6002


$0.6007


$0.6841


$0.6091


$0.6294


$0.7086


SO, 9143


SO. 8426


$0.8184











DREDGING EXCAVATION— PRISM.

Detailed cost per cubic yard for quarter ending June 30, 1911:



Table No. 5.



Items.



Atlantic Division.



Pacific Division.



April.



May.



June.



Total.



April



May.



June.



Total.



I
Quan- Quan-
tities, Unit tities,
cu. yds. cost cu. yds.



Pipe lines

Dykes

Clearing 487.174 SO

Op'n. seagoing suction dredge 364,320
R'p'rs.seagoingsuctiondredge 364,320
Operation, ladder dredges. . . 76.U72

Repairs, ladder dredges 76.072

Operation, dipper dredges . . .| 37,782

Repairs, dipper dredges 37.782

Operation, pipe line dredges.
Repairs, pipe line dredges.. .
Op'n. tugs, clapets and scows
R'p'rs, tugs, clapets. and scows

Drilling

Bllsting

Operation, drill barges. . :.
Operation, rock breakers .

Small boats

Repairs, misc. equipment. .

Plant arbitrary

Division expense



Quan-
Unit tities,
cost. cu. yds.



Unit
cost.



Quan-
tities,
cu. yds.



Unit
cost.



Quan-
tities, ' Unit
cu. yds. cost.



Quan-
tities,
cu. yds.



Unit
cost.



Quan-
tities, Unit
cu. yds. cost-



Quan-
tities, Unit
cu. yds. cost.



Total division cost

Admin, and general expense



Total cost .



Earth excavation — per cent .
Rock excavation — per cent -



0003
0321
0073
1242
0484
0904
0390



356,943
356.943
123.142
123.142
34.093
34.093



SO. 0296 300.337 SO 0310



.0057,300.337
.0746 81,036
.0336 81,036
1729 70.725
.2837 70.725



.0138
0992
. 1149
. 1307
0720



1.444.450 SO. 0001 406.1 13 SO. 0001

176,521 0559 224,363 SO. 0409' 220.786 SO, 0414



113.854

113.854

34.549

34.459



1422
1084
,0581

0886



157,235'
157,235'
42.520
42,520



.0680 151,761
.0526 151.761
. 0504 20,443
.0691 20.443



.0614

.0476

1429

3046



478,174
478.174
478.174
47X174



478,174
478.174



0027 514,178 .0016 452.098 .0031

.0012 514.178 .0035 452.098 .0012

.0610 514,178 0610 452.098 .0610

.0061 514,178 .0054 452.098 .0185



.021.600
1,021,600
280,250
280.250
142.600
142.600



0309
.0087
.0952
.0611
1301
1139



176.521
179,631
179,631
49.961
49.961



0554 224,363

1055 221,629

0456 221,629

1017 83.702

0373 83.702



0160 220,786

046S 229,962

0423 229,962

0545 71.494

0190 71.494



0051
.0469
f.0060
.0677
.0513



621,670 $0.0453



621,670
631.222
631.222
205,157
205.157



.0233
0634

.0251
0706

.0347



422,850