THE PANAMA ROUTE FOR A SHIP CANAL.
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named, so that those waters would not find their way into the canal. There are a few other small works of similar character in different portions of the line, all of which were recognized and provided for by the commission.
The principal items of the total amount of work to be performed in completing the Panama canal, under the plan of the commission, can be classified as shown in the following table:
| Dredging | 27,659,540 | cu. yds. |
| Dry earth | 14,386,954 | cu. yds. |
| Soft rock | 39,893,235 | cu. yds. |
| Hard rock | 8,806,340 | cu. yds. |
| Rock under water | 4,891,667 | cu. yds. |
| Embankment and back filling | 1,802,753 | cu. yds. |
| Total | 97,440,489 | cu. yds. |
| Concrete | 3,762,175 | cu. yds. |
| Granite | 13,820 | cu. yds. |
| Iron and steel | 65,248,900 | lbs. |
| Excavation in coffer dam | 7,260 | cu. yds. |
| Pneumatic work | 108,410 | cu. yds. |
The lengths of the various sections of this route and the costs of completing the work upon them are fully set forth in the following table, taken from the commission's report, as were the two preceding:
| Total Estimated Cost. | Miles. | Cost. |
| Colon entrance and harbor | 2.39 | $ 8,057,707 |
| Harbor to Bohio locks, including levees | 14.42 | 11,099,839 |
| Bohio locks, including excavation | .35 | 11,567,275 |
| Lake Bohio | 13.61 | 2,952,154 |
| Obispo gates | 295,434 | |
| Culebra section | 7.91 | 44,414,460 |
| Pedro Miguel locks, including excavation and dam | .35 | 9,081,321 |
| Pedro Miguel level | 1.33 | 1,192,286 |
| Miraflores locks, including excavation and spillway | .20 | 5,781,401 |
| Pacific level | 8.53 | 12,427,971 |
| Bohio dam | 6,369,640 | |
| Gigante spillway | 1,209,419 | |
| Pena Blanca outlet | 2,448,076 | |
| Chagres diversion | 1,929,982 | |
| Gatun diversion | 100,000 | |
| Panama Railroad diversion | 1,267,500 | |
| Total | 49.09 | 120,194,465 |
| Engineering, police, sanitation and general contingencies, 20 per cent | 24,038,893 | |
| Aggregate | $144,233,358 |
