3503-2❘ Typical Sections of Docks and Piers-Pacific Terminals-Sheet No. 1.
3503-3 Typical Sections of Docks and Piers-Pacific Terminals-Sheet No. 2.
3503-4 Typical Sections of Docks and Piers-Pacific Terminals-Sheet No. 3.
General Layout, Pier No. 18, and Pier Shed, Balboa.
General Plan, Cristobal Terminal Docks, Piers and Mole.
Typical Section, Pier No. 7, Cristobal.

14478

107

108

109

110

111

11908

112

11001

113

4196

Fuel Oil Storage-Typical Plan and Elevation, Oil Handling Plants.
Detail Plan, Pacific Tank Lots.

General Plan, Atlantic Terminal Oil Plant.
General Plan, Pacific Terminal Oil Plant.

Respectfully submitted.

H. H. ROUSSEAU,

Civil Engineer, United States Navy,
Engineer of Terminal Construction.

Maj. Gen. GEO. W. GOETHALS, United States Army,

Governor, The Panama Canal,

8193°-1512

Balboa Heights, Canal Zone.

APPENDIX C.

REPORT OF THE RESIDENT ENGINEER, DREDGING DIVISION, DEPARTMENT OF OPERATION AND MAINTENANCE.

PARAISO, CANAL ZONE, July 28, 1915.

SIR: I have the honor to submit the following report of operations in the dredging division during the fiscal year ended June 30, 1915.

DIVISION ORGANIZATION.

The division is divided into two districts, the first district embracing all dredging operations in the Pacific entrance, Miraflores Lake, and Gaillard Cut; the second district, all dredging operations in the Atlantic entrance and Gatun Lake to the Gamboa Bridge.

DREDGING.

The following dredges were at work during the year:

The seagoing suction dredge Culebra was engaged in deepening the channel, between stations 2286 and 2302, Pacific entrance, and in excavating berths for oil vessels at the new oil dock, Balboa, from July 1 to 14, 1914; temporarily laid up at Paraiso from July 15, 1914, to April 15, 1915; reentered service and was engaged maintaining channels at the Atlantic and Pacific entrances, Gaillard Cut, and along Pier 4, Balboa, from April 16, 1915, to June 30, 1915.

The seagoing suction dredge Caribbean was engaged in maintaining the required depths in the Atlantic entrance, Cristobal approach channel, and Cristobal Harbor, from July 1, 1914, to April 15, 1915; retired from service on April 16, 1915, and was laid up at Paraiso for the remainder of the year.

The 18-inch pipe-line dredge No. 4 was engaged during the year in deepening the channel between stations 211 and 245, Atlantic entrance; filling around the fortifications at Toro Point; filling the pile and material yards and the core of the east breakwater at Coco Solo Point, and acting as a relay for dredge No. 83 on the east breakwater.

The 20-inch pipe-line dredge No. 82 was engaged in deepening the Balboa inner harbor, July 1, 1914, to November 29, 1915; operated at the sand and gravel beds in the Chagres River, and deepening the berth in front of the Gamboa sand and gravel dock, November 30, 1914, to June 30, 1915.

The 20-inch pipe-line dredge No. 83 was engaged during the year in excavating the coal-storage basin at the Cristobal coaling station;

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